| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 065413000 |
With step of vapor deposition
| 42 |
| 065391000 |
Plasma utilized
| 31 |
| 065406000 |
Joining or bonding optical fibers, waveguides, or preforms (e.g., coupling, etc.)
| 27 |
| 065435000 |
With fiber stretching, drawing, or pulling (e.g., from rod, etc.)
| 23 |
| 065397000 |
Fluorine doping
| 13 |
| 065392000 |
Laser utilized
| 12 |
| 065402000 |
Producing bent, crimped, twisted, textured, or curled optical fibers or waveguides
| 11 |
| 065427000 |
Consolidating preform (e.g., sintering, etc.)
| 9 |
| 065424000 |
Inert, nonoxidizing, or reducing environment
| 9 |
| 065386000 |
Planar waveguides
| 7 |
| 065425000 |
Electromagnetic, magnetic, wave, or particulate energy utilized
| 6 |
| 065393000 |
Hollow optical fibers or waveguides
| 6 |
| 065434000 |
With quench cooling (e.g., forced air or cryogenic immersion, etc.)
| 6 |
| 065399000 |
Incorporating dopant into porous body | 5 |
| 20100000260 | METHOD FOR FABRICATING A PREFORM, A PREFORM, AN OPTICAL FIBER AND AN AMPLIFIER - The present invention relates to a method and an apparatus for fabricating a preform ( | 01-07-2010 |
| 20120060561 | GLASS PREFORM MANUFACTURING METHOD - A glass preform manufacturing method, includes: preparing a glass element having a rough surface; turning a raw material of an alkali metal compound or a raw material of an alkaline earth metal compound into particles; depositing particles of the alkali metal compound or the alkaline earth metal compound on the rough surface of the glass element; oxidizing the particles of the alkali metal compound or the alkaline earth metal compound while diffusing alkali metal oxide or alkaline earth metal oxide in the glass element; and manufacturing a glass preform into which the alkali metal oxide or the alkaline earth metal oxide is doped. | 03-15-2012 |
| 20130167595 | P-ELEMENT DOPED LASER MEDIUM APPARATUS AND METHOD - A method for manufacturing a glass composition including a host glass, a 3p component having a concentration of about 5 mole percent to about 10 mole percent, and at least one of a 6p component having a concentration of about 1 mole percent to about 5 mole percent and a 5p component having a concentration of about 1 mole percent to about 5 mole percent, is provided. The method includes heating the host glass to a first predetermined temperature for a first period of time; mixing a powder including the 3p component and the at least one of the 5p component and the 6p component with the heated host glass into a glass/powder mixture; heating the glass/powder mixture to a second predetermined temperature for a second period of time; and cooling, after heating, the glass/powder mixture. | 07-04-2013 |
| 20150052952 | APPARATUS AND METHOD FOR MANUFACTURING GLASS PREFORM - An apparatus for manufacturing a glass perform, includes: a dummy tube section, a reservoir portion, and a cooling portion; and a glass tube section in which particles of an alkali metal compound or an alkaline earth metal compound which have flowed into the glass tube section from the dummy tube section are heated by a second heat source which performs traverse, and oxides of the particles being deposited on an inner wall and dispersed in the glass tube section. In the cooling portion of the dummy tube section, vapor of the alkali metal compound or the alkaline earth metal compound generated by heating of a first heat source is cooled and condensed by a dry gas flowing into the dummy tube section, and thereby the particles are generated. | 02-26-2015 |
| 20160152510 | METHOD OF MAKING UPDOPED CLADDING BY USING SILICON TERTRACHLORIDE AS THE DOPANT | 06-02-2016 |
| 065426000 |
Drying, dehydration, OH removal or prevention | 5 |
| 20100154480 | METHOD OF MANUFACTURING OPTICAL FIBER BASE MATERIAL - A method of manufacturing an optical fiber base material having very little impurity which deteriorates the transmission characteristic of an optical fiber is provided. The method of manufacturing an optical fiber base material including: producing a core member for the optical fiber base material by dehydrating and transparently vitrifying a base material formed by depositing glass particles; and drawing the core member and then adding a cladding thereto at a desired core to cladding ratio, wherein the dehydrating includes suspending the base material in a furnace tube having a heating region in a first atmosphere at a first temperature, the base material passing through the heating region as upwardly moving, and the transparently vitrifying includes situating the base material below once and then allowing the base material to pass through the heating region in a second atmosphere at a second temperature as upwardly moving again. | 06-24-2010 |
| 20100294002 | OPTICAL FIBER PREFORM MANUFACTURING METHOD - The present invention provides a method for manufacturing an optical fiber preform, which provides an optical fiber with stable transmission loss characteristics, and improves manufacturing efficiency. The method for manufacturing an optical fiber preform comprises dehydrating the optical fiber soot preform by lowering the optical fiber soot preform within the muffle tube and passing through a heating region, pulling up the dehydrated optical fiber soot preform to the predetermined position, and sintering the optical fiber soot preform by lowering the optical fiber soot preform again within the muffle tube and passing through the heating region where temperature of the heating region is higher than temperature of the heating region in dehydrating; wherein A≦B is satisfied where A is pull-up speed (mm/minute) of the optical fiber soot preform during the pulling up and B is gas flow rate (mm/minute) within the muffle tube at room temperature during the pulling up. Furthermore, 1.5×A≦B is satisfied. | 11-25-2010 |
| 20120318025 | DEVICE AND METHOD FOR MANUFACTURING AN OPTICAL PREFORM - A device for contracting a hollow substrate tube made of quartz glass into an optical perform including a heat source movable relative to the longitudinal direction of the substrate tube and an insert tube positioned in the interior of the substrate tube, at one end thereof, provided with a central opening through which a gas is passed and supplied to the interior of the substrate tube. | 12-20-2012 |
| 20130098116 | MUFFLE TUBE INSPECTION METHOD AND MANUFACTURING METHOD OF SILICA GLASS-BASED OPTICAL FIBER PREFORM - A muffle tube inspection method inspects a muffle tube used for dehydrating and sintering a silica glass-based optical fiber preform, the muffle tube includes a sintering furnace provided with a furnace body covering a heater disposed around a periphery of the muffle tube. The method detects a crack generated at the muffle tube by measuring a pressure inside the furnace body while varying a pressure inside the muffle tube. | 04-25-2013 |
| 20160130173 | OPTICAL FIBER GLASS BASE MATERIAL MANUFACTURING APPARATUS AND SINTERING METHOD - Provided is an optical fiber glass base material manufacturing apparatus, including a furnace core tube that houses a porous glass base material; a movement mechanism that moves the porous glass base material in a longitudinal direction thereof in the furnace core tube; a first heating section that heats and dehydrates the porous glass base material in the furnace core tube; and a second heating section that is arranged downstream from the first heating section in a movement direction of the porous glass base material, and sinters the porous glass base material by heating a portion of the porous glass base material in the longitudinal direction. | 05-12-2016 |
| 065430000 |
With significant coating step | 5 |
| 20130118208 | METHOD AND APPARATUS FOR MANUFACTURING OPTICAL FIBER - This optical fiber manufacturing method includes: forming a bare optical fiber by drawing an optical fiber preform; forming an intermediate optical fiber by providing a coating layer, which is formed of resin, on the outer periphery of the bare optical fiber; performing primary curing of the coating layer which forms the intermediate optical fiber; pressing the outer periphery of the intermediate optical fiber; and performing secondary curing of the pressed coating layer of the intermediate optical fiber. | 05-16-2013 |
| 20100281922 | Methods for producing optical fibers - Methods for producing optical fibers along nonlinear paths include incorporating fluid bearings. An optical fiber is drawn from a preform along a first pathway, contacted with a region of fluid cushion of a fluid bearing, and redirected along a second pathway as the fiber is drawn across said region of fluid cushion. | 11-11-2010 |
| 20100319405 | OPTICAL FIBER MANUFACTURING DEVICE AND OPTICAL FIBER MANUFACTURING METHOD - An optical fiber manufacturing device includes a bare optical fiber-forming unit that forms a bare optical fiber by pulling an optical fiber preform; a coating unit that forms an optical fiber by coating the bare optical fiber outputted from the bare optical fiber-forming unit with a coating layer; a first direction-converter, which is a solid body that comes into contact with the optical fiber outputted from the coating unit and thereby first changing its traveling direction; and a winder that winds the optical fiber obtained from the first direction-converter, in which: the first direction-converter is a rotating body having a circumferential face that contacts with the optical fiber and is formed around an axis of rotation thereof; and the contact angle, centered on the axis of rotation, between this rotating body and the optical fiber is in the range of 10° to 80°. | 12-23-2010 |
| 20100319406 | APPARATUS FOR AND METHOD OF PROCESSING GLASS OPTICAL FIBER, METHOD OF MANUFACTURING AND METHOD OF DRAWING OPTICAL FIBER - An apparatus includes: an introducer to introduce a glass optical fiber that has passed a pulling mechanism pulling, to draw the glass optical fiber, one end of an optical fiber preform that has been fused by heating; a shredder including a casing connected to the introducer and a shredding mechanism to shred the glass optical fiber introduced by the introducer in the casing into glass optical-fiber pieces; a pipe connected to the casing of the shredder and to carry the glass optical-fiber pieces; and a suction unit connected to the pipe and to suction the glass optical-fiber pieces via the pipe. | 12-23-2010 |
| 20120192593 | METHOD FOR PRODUCING OPTICAL FIBER PREFORM - There is provided a method for producing an optical fiber preform used in producing an optical fiber having low attenuation. The production method includes (1) a rod formation step of forming a glass rod of a silica glass containing an alkali metal element, the average concentration of the alkali metal element being 5 at·ppm or more, (2) a heat treatment step of heat-treating the glass rod, (3) a core part formation step of forming an alkali metal element-free silica glass layer having a chlorine concentration of 6000 at·ppm or more around the perimeter of the glass rod heat-treated in the heat treatment step to form a core part including the glass rod and the silica glass layer, and (4) a cladding part formation step of forming a cladding part of a silica-based glass having a lower refractive index than the core part around the perimeter of the core part. | 08-02-2012 |
| 065387000 |
Forming lens integral with optical fiber | 4 |
| 20080245109 | METHODS TO FABRICATE A PHOTOACTIVE SUBSTRATE SUITABLE FOR SHAPED GLASS STRUCTURES - This invention provides an inexpensive and rapid method for fabricating a high-anisotropic-etch ratio, shaped glass structures using a novel photosensitive glass composition. Structures of the photosensitive glass may include micro-channels, micro-optics, microposts, or arrays of hollow micro-needles. Furthermore, such shaped glass structures can be used to form a negative mold for casting the shape in other materials. | 10-09-2008 |
| 20090277228 | THREE-DIMENSIONAL OPTICAL WAVEGUIDE, METHOD OF MANUFACTURING SAME, OPTICAL MODULE, AND OPTICAL TRANSMISSION SYSTEM - A three-dimensional optical waveguide is formed by laminating planar substrates such as a plurality of lens substrates and, an isolator substrate and a wavelength division multiplexing filter, the optical substrates at least include a waveguide substrate having a waveguide and a reflecting surface. In the three-dimensional optical waveguide, the planar substrates are positioned by markers integrally formed on at least two of the planar substrates. Light directed into the waveguide is reflected by a reflecting surface and passes through the lens substrates and the isolator substrate. | 11-12-2009 |
| 20130160496 | METHOD AND DEVICE FOR PRODUCING ROD LENSES - A method for producing rod lenses with an enveloping diameter of the rod lens face of up to 200 mm and an edge length of at least 800 mm. The method is characterized in that fabrication is performed from a cylindrical rod lens element made from synthetic quartz glass material configured as a fused silica ingot. This is performed using a flame hydrolysis method with a direct one stage deposition process of SIO | 06-27-2013 |
| 20160174812 | Multi-Spot Laser Probe With Sapphire Ball And Molded Glass | 06-23-2016 |
| 065404000 |
With step of casting or forming nonfiber workpiece (e.g., molding liquid preform, shaping molten glass against a forming surface, etc.) | 4 |
| 20090090136 | METHOD OF MAKING LOW-TEMPERATURE OPTICAL GLASS FIBERS FREE OF DEFECTS - A method of molding low-temperature glass into a preform for formation by drawing into glass fiber, especially for transmission of mid-IR, involves casting a cladding glass into a mold cavity in the shape of the desired preform to form a cladding layer, and forming a glass core within the cladding layer, wherein the molten cladding glass is drained from the bottom of the mold cavity, forming an annular coating of cladding glass as an annular layer, and the core glass is quickly added within the annular cladding layer to form the glass core with the cladding layer thereabout. | 04-09-2009 |
| 20090139268 | Optical glass, precision press-molding preform, optical element and processes for production of these - Provided are optical glasses having a phosphate-containing composition that can materialize highly useful optical properties including high-refractivity and high-dispersion properties; an optical glass comprising P | 06-04-2009 |
| 20090193851 | CORE SUCTION TECHNIQUE FOR THE FABRICATION OF OPTICAL FIBER PREFORMS - Optical fiber preforms which can be drawn into optical fibers of desired dimensions are fabricated by applying a vacuum to a cladding tube and drawing molten glass from a crucible into a bore of the cladding tube while a portion of the cladding tube is within a furnace preferably through a small hole in the top of the furnace. The method and apparatus are particularly applicable to highly non-linear fiber (HNLF) glasses and highly doped or rare earth glasses since materials therein are generally expensive and only a small quantity of molten glass is required but can be applied to virtually any optical fiber construction where the core glass has a lower melting or softening point than that of the cladding tube. Sources of contamination, breakage and other preform defects are substantially avoided and toxic substances, if present are readily confined. | 08-06-2009 |
| 20100107700 | Methods For Forming Cladding Portions Of Optical Fiber Preform Assemblies - A method of forming a cladding portion of an optical fiber preform assembly includes positioning a glass core cane in a mold cavity and loading the mold cavity with silica glass soot. The silica glass soot is compressed in an axial direction as the vibratory energy is applied to the mold body to form a soot compact around the glass core cane, wherein the soot compact is the cladding portion of an optical fiber preform assembly and the glass core cane is a core portion of the optical fiber preform assembly. | 05-06-2010 |
| 065395000 |
Sol-gel or liquid phase route utilized | 3 |
| 20080264106 | Process for the Production of Glass-Monoliths by Means of the Sol-Gel Process - Method for fabricating a glass-monolith by the sol-gel process, in which a pyrogenically produced silica (fumed silica) is used in the form of a powder and/or a dispersion, characterized in that as pyrogenically produced silica (fumed silica) a silica (fumed silica) deriving from the group highly pure, pyrogenically produced silica (fumed silica) with a metal content of lower than 9 ppm and/or a pyrogenically prepared silicon dioxide powder having—a BET surface area of 30 to 90 m2/g, —a DBP number of 80 or less, an average aggregate area of less than 25,000 nm2, an average aggregate circumference of less than 1,000 nm, at least 70% of the aggregates having a circumference of less than 1,300 nm is used. | 10-30-2008 |
| 20090235696 | Method for Manufacturing Grin Lens - A method of manufacturing a GRIN lens includes a forming a wet gel from an alcohol solution containing a silicon alkoxide, a dopant alkoxide, and an aluminum alkoxide; dissolving by leaching the dopant and aluminum away from an outer peripheral surface of the wet gel to provide a refractive index distribution; forming a dry gel by drying the wet gel; forming a glass preform by firing the dry gel; and wire-drawing the perform. In the step of leaching, most aluminum dissolves from the wet gel, thereby increasing the porosity of the dry gel and preventing cracking during sintering and foaming during wire-drawing. | 09-24-2009 |
| 20130133376 | ATOMIZING METHOD FOR PRODUCING SYNTHETIC QUARTZ GLASS - The present invention relates to a method for producing synthetic quartz glass, comprising the steps of:
| 05-30-2013 |
| 065390000 |
Scandium (Sc), yttrium (Y), or rare earth doped core or preform (i.e., atomic numbers 21, 39, 57-72) | 3 |
| 20110067451 | Method of Fabricating Optical Fiber Using An Isothermal, Low Pressure Plasma Deposition Technique - An isothermal, low pressure-based process of depositing material within a substrate has been developed and results in creating an extremely narrow reaction zone within which a more uniform and efficient deposition will occur. Sets of isothermal plasma operating conditions have been found that create a narrow deposition zone, assuring that the deposited material is clear glass rather than soot particles. The chemical delivery system, in one arrangement, utilizes rods of solid phase source material (which may otherwise be difficult to obtain in gaseous form). The operating conditions are selected such that the hot plasma does not transfer a substantial amount of heat to the substrate tube, where the presence of such heat has been found to result in vaporizing the reactant material (creating soot) and developing hot spots. | 03-24-2011 |
| 20120151968 | METHOD OF MANUFACTURING PHOTONIC BAND GAP FIBER BASE MATERIAL AND METHOD OF MANUFACTURING PHOTONIC BAND GAP FIBER - A method of manufacturing a photonic band gap fiber base material includes: a forming step of continuously forming a columnar core glass body | 06-21-2012 |
| 20160083284 | PROCESS FOR FABRICATION OF YTTERBIUM DOPED OPTICAL FIBER - The present invention provides a process for fabrication of ytterbium (Yb) doped optical fiber through vapor phase doping technique. The method comprises deposition of Al2O3 and Yb2O3 in vapor phase simultaneously in combination with silica during formation of sintered core layer. This is followed by collapsing at a high temperature in stepwise manner to produce the preform and drawing of fibers of appropriate dimension. The process parameters have been optimized in such a way that Al and Yb-chelate compounds can be transported to the reaction zone without decomposition and condensation of precursor materials. Thus variations of dopants concentration along the length of the preform have been minimized to <1% and good repeatability of the process has also been achieved. The resulting fibers also have smooth core-clad boundary devoid of any star-like defect. The process can be reliably adopted for fabrication of large core Yb doped optical fibers. The fibers also show low loss, negligible center dip and good optical properties suitable for their application as fiber lasers. | 03-24-2016 |
| 065388000 |
Nonoxygen halide glass (e.g., metal halide, etc.) | 3 |
| 20100077800 | METHOD FOR FABRICATING POROUS SILICAPREFORM AND POROUS SILICA PREFORM - A method for fabricating a porous silica preform includes the steps of supplying fuel gas for generating an oxyhydrogen flame to a glass synthesizing burner; supplying Gas A containing silicon and Gas B containing fluorine to the burner; synthesizing glass particles; and depositing the glass particles around a starting rod, in which when glass particles are deposited directly on the starting rod, a supply of Gas A and a supply of Gas B supplied to the burner are adjusted so that a ratio of the number of fluorine atoms to the number of silicon atoms in the gas supplied to the burner satisfies the following Formula (1): | 04-01-2010 |
| 20100095706 | Method for manufacturing optical fibers and optical fiber performs - A method of manufacturing an optical fiber preform, the method comprising: providing a substantially elongated core preform made out of a core fluorinated glass; providing a substantially elongated and substantially tubular cladding preform made out of a cladding fluorinated glass, the cladding preform defining a bore extending substantially longitudinally therethrough; inserting the core preform into the bore of the cladding preform; fusing the core preform and the cladding preform to each other to produce an intermediate preform; heating the intermediate preform up to a stretching temperature, the stretching temperature being such that the core and cladding fluorinated glasses both have a viscosity of between 10 | 04-22-2010 |
| 20100107699 | Method and system for producing an infrared transmitting fiber - The invention relates to a method for producing an infrared transmitting fiber ( | 05-06-2010 |
| 065403000 |
Producing noncircular optical fibers or waveguides (e.g., particular cross section, etc.) | 2 |
| 20130239623 | Methods for Making Active Laser Fibers - Methods for making active laser fibers include the production of an optical fiber with disturbed (or deviated) cylindrical symmetry on the glass surface of the fiber. The methods include a preform containing a central core made of glass. In one embodiment, the preform is circular and surrounded by additional glass rods and an outer glass jacket tube. In a first alternative embodiment, this preform is merged during fiber drawing. In a second alternative embodiment, the preform merged in a process forming a compact glass body with disturbed cylindrical symmetry. This compact preform is drawn into a fiber under conditions maintaining the disturbed cylindrical symmetry. | 09-19-2013 |
| 20150315061 | MULTI-CORE OPTICAL FIBER RIBBONS AND METHODS FOR MAKING THE SAME - Multi-core optical fiber ribbons and methods for making multi-core optical fiber ribbons are described herein. In one embodiment, a multi-core optical fiber ribbon includes at least two core members formed from silica-based glass and oriented in parallel with one another in a single plane. Adjacent core members have a center-to-center spacing ≧15 microns and a cross-talk between adjacent core members is ≦−25 dB. In this embodiment each core member is single-moded with an index of refraction n | 11-05-2015 |
| 065400000 |
Ion exchange utilized | 1 |
| 20100251775 | DEUTERIUM TREATMENT METHOD FOR OPTICAL FIBRES - A treatment method for an optical fibre including the steps of exposing the fibre to an atmosphere containing deuterium at a given temperature, concentration and pressure, measuring the attenuation in the fibre as a function of time at least one wavelength, during the exposure of the fibre to an atmosphere containing deuterium, identifying an attenuation maximum after an exposure duration, and stopping the exposure of the fibre to the atmosphere containing deuterium when said duration has elapsed. | 10-07-2010 |
| 065394000 |
Ion implantation | 1 |
| 20100071420 | Optical Fiber Preform Fabricating Method, Optical Fiber Fabricating Method and Optical Fiber - The present invention relates to an optical fiber preform fabricating method that makes it possible to implement a reduction in iron impurities at a low cost. The optical fiber preform fabricating method comprises a glass synthesis step for forming a glass region constituting at least a part of the core area of the optical fiber. The glass synthesis step includes a deposition step of depositing glass particles containing the Al-element inside the glass pipe by means of chemical vapor deposition, and a consolidation step of obtaining a transparent glass body from the glass soot body thus obtained. In other words, the deposition step synthesizes glass particles on the inside wall of a glass pipe by feeding raw material gas, in which the content ratio (O/Al) of the O-element and Al-element is 20 or less, into the glass pipe. Furthermore, the consolidation step obtains a transparent glass body from the glass soot body by heating the glass soot body. The transparent glass body that is formed in the consolidation step constitutes part of the core region. | 03-25-2010 |
| 065429000 |
With etching or leaching | 1 |
| 20100236293 | APPARATUS AND METHOD FOR MANUFACTURING TAPERED FIBER OPTIC COMPONENTS - A system for producing a tapered fiber optic component, the system including a support platform, coupled with a first end of an optical fiber, a weight suspended from a second end of the optical fiber, such that the weight applies longitudinal pulling pressure on the optical fiber, and a moveable heater, positioned adjacent to a predetermined area of the optical fiber, the predetermined area is positioned between the first end and the second end of the optical fiber, the moveable heater applying thermal energy to the predetermined area of the optical fiber, when the optical fiber is lengthened by the pulling pressure, the movable heater follows the predetermined area, such that the movable heater remains adjacent to the predetermined area of the optical fiber. | 09-23-2010 |
| 065401000 |
Extruding | 1 |
| 20100162770 | Armored Fiber Optic Assemblies and Methods of Making the Same - Armored fiber optic assemblies are disclosed that include a dielectric armor along with methods for manufacturing the same. The dielectric armor has an armor profile, thereby resembling conventional metal armored cable to the craft. The dielectric armor provides additional crush and impact resistance and the like for the optical fibers and/or fiber optic assembly therein. The dielectric armor is advantageous to the craft since it provides the desired mechanical performance without requiring the time and expense of grounding like conventional metal armored cables. Additionally, the armored fiber optic assemblies can have any suitable flame and/or smoke rating for meeting the requirements of the intended space. | 07-01-2010 |
| 065405000 |
Utilizing multiple crucibles or multiple feed streams of molten glass | 1 |
| 20150068252 | OPTICAL FIBER DRAWING APPARATUS HAVING SIMPLE STRUCTURE AND OPTICAL FIBER DRAWING METHOD USING THE SAME - Provided is an optical fiber drawing apparatus and optical fiber drawing method using the same. The apparatus may include a crucible accommodating core and clad sources and having a bottom hole through which the core and clad sources pass, and a plug disposed under the crucible, the plug passing through the bottom hole. The plug may include a bottom plug disposed under the crucible to close the bottom hole, and a first upper plug disposed on the bottom plug to pass through the bottom hole. | 03-12-2015 |
| 065389000 |
Nonoxygen chalcogenide glass containing | 1 |
| 20150315063 | METHOD AND APPARATUS FOR APPLYING A MID-IR GRADED-INDEX MICROSTRUCTURE TO AN OPTICAL FIBER TIP TO ACHIEVE ANTI-REFLECTIVE PROPERTIES - A method and apparatus for applying a mid-IR graded microstructure to the end of a chalcogenide glass optical fiber are presented herein. The method and apparatus transfer a microstructure from a negative imprint on a nickel shim to a chalcogenide glass fiber tip with minimal shape distortion and minimal damage-threshold impact resulting in large gains in anti-reflective properties. | 11-05-2015 |
