Class / Patent application number | Description | Number of patent applications / Date published |
372098000 |
Specified cavity component
| 85 |
372107000 |
Mirror support or alignment structure
| 27 |
372093000 |
Folded cavity
| 16 |
372096000 |
Distributed feedback
| 13 |
372095000 |
Unstable resonator
| 7 |
372097000 |
Plural cavities | 3 |
20090086787 | FIBER RING LASER - A fiber ring laser is provided, which includes an optic amplifier, a first optical coupler (OCP), a second OCP, a first fiber ring, a second fiber ring, a first polarization controller (PC), and a second PC. The first fiber ring is coupled to the optic amplifier, the first and the second OCPs. The second fiber ring is coupled to the first and the second OCPs. The optic amplifier amplifies a first laser beam with a specified wavelength range. The first fiber ring receives the first laser beam. The first and the second fiber rings respectively provide a first and a second resonant cavities. The first and the second PCs respectively control polarization states of the first and second resonant cavities. The first laser beam resonates in the first and the second resonant cavities to generate a second laser beam with a first and a second wavelengths. | 04-02-2009 |
20090232180 | METHOD AND APPARATUS FOR COHERENTLY COMBINING LASER EMISSION - A laser system comprises first and second laser sub-cavities each including a gain medium arranged to produce volume gain gratings. The laser system further includes a beam combiner arranged to combine emission from each cavity and direct emission from one cavity to the other. As a result a stale, phase-locked coherently combined emission system is provided. | 09-17-2009 |
20110026559 | LASER DISPLAYS - A laser is provided, suitable for use in laser displays, having a laser cavity defined by at least first and second mirrors, a lasing material positioned in an optical path within the cavity with an associated pumping source and wherein one of the mirrors has a reflective surface that is moveable so as to alter the length of the cavity at a rate sufficiently high to ensure that effects due to a speckle pattern, as perceived by an observer or detector of light generated by the laser, are reduced while preserving the instantaneous coherence of the laser light. Sufficiently rapid movement of the mirror surface ensures that any speckle pattern changes at a faster rate than can be detected by the human eye or by a detector so that speckle is no longer visible, or is at least considerably reduced. | 02-03-2011 |
372108000 |
Specified output coupling device | 2 |
20090129427 | OPTICAL MODULE - An optical module | 05-21-2009 |
20090196320 | Wavelength converter apparatus - A compact apparatus is provided for stably converting a wavelength of a laser diode with the use of an optical fiber and a wavelength selective device. Employing a bulk type element as a wavelength selective device makes the action of controlling the temperature of the device easy, and can stabilize the wavelength emitted from the laser diode. | 08-06-2009 |
Entries |
Document | Title | Date |
20080240198 | SEMICONDUCTOR LASER HAVING FABRY-PEROT RESONATOR - A semiconductor laser of the present invention is constructed such that the reflectance of the front facet coating film or the rear facet coating film dramatically decreases at wavelengths greater than a predetermined wavelength. This causes the loss of the semiconductor laser to dramatically increase at wavelengths greater than the predetermined wavelength. As a result, the oscillation wavelength of the semiconductor laser at high temperatures is clamped to around the predetermined wavelength. | 10-02-2008 |
20100020841 | LASER LIGHT SOURCE - The invention relates to a laser light source for generating narrow-band laser radiation with high coherence, comprising a laser diode ( | 01-28-2010 |
20100260228 | METHOD OF PRODUCING THREE-DIMENSIONAL PHOTONIC CRYSTAL AND OPTICAL FUNCTIONAL DEVICE - A method of producing a three-dimensional photonic crystal by laminating a layer having a periodic structure, the method including the steps of forming a first structure and a second structure each including the layer having the periodic structure; and bonding a first bonding layer of the first structure and a second bonding layer of the second structure. The first bonding layer is one layer obtained by dividing a layer constituting the three-dimensional photonic crystal at a cross section perpendicular to a lamination direction, and the second bonding layer is the other layer obtained by dividing the layer constituting the three-dimensional photonic crystal at the cross section perpendicular to the lamination direction. | 10-14-2010 |
20100303121 | ACHIEVING LOW PHASE NOISE IN EXTERNAL CAVITY LASER IMPLEMENTED USING PLANAR LIGHTWAVE CIRCUIT TECHNOLOGY - The present invention relates to external cavity laser (ECL) apparatuses and manufacturing processes, and more particularly to implementing low noise narrow bandwidth ECLs on planar lightwave circuit (PLC) platforms for harnessing high-performance, high-stability operation from a compact-footprint, low-power packaged device. An ECL device with narrow linewidth and low noise is disclosed, the device comprising a PLC device and a gain chip butt-coupled to each other. The PLC device has a planar Bragg grating (PBG) integrated onto a rectangular waveguide. The PLC device has anti-reflection coatings (ARC) on its input facet and output facet. The waveguide is designed to be selective of a single polarization. The gain chip has high-reflection coating (HRC) on a back facet and an ARC on a front facet. An operating wavelength of the ECL is aligned to a longer wavelength red slope of a reflectivity spectrum of the PBG. The operating wavelength may be tuned thermally, electrically, or thermo-electrically. | 12-02-2010 |
20100303122 | CAVITY DYNAMICS COMPENSATION IN RESONANT OPTICAL MODULATORS - Disclosed are resonant optical modulators, and methods of use thereof, that achieve constant photon populations in the resonator by simultaneously modulating at least two variable modulation parameters. | 12-02-2010 |
20110243178 | HIGH POWER VCSEL WITH IMPROVED SPATIAL MODE - The present invention relates to a VCSEL device comprising an optical gain medium ( | 10-06-2011 |
20120039351 | RESONATOR WITH INTRACAVITY TRANSFORMATION OF A GAUSSIAN INTO A TOP-HAT BEAM - The invention relates to an optical resonator, laser apparatus and a method of generating a laser beam inside an optical resonator. The optical resonator ( | 02-16-2012 |
20120044967 | Capping Method For Laser Diode Protection - A method includes: positioning a laser in the cavity in an end of a slider, wherein the laser has an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and filling at least a portion of the first gap adjacent to the output facet. An apparatus including a slider including a cavity in a trailing end of the slider, a laser positioned in the cavity and having an output facet positioned adjacent to a first wall of the cavity to define a first gap between the output facet and the first wall of the cavity, and a sealing material filling at least a portion of the first gap adjacent to the output facet is also provided. | 02-23-2012 |
20130235895 | LASER LIGHT SOURCE, LASER PROCESSING DEVICE, AND SEMICONDUCTOR PROCESSING METHOD - A laser light source ( | 09-12-2013 |
20140233599 | NANOLASER GENERATOR USING GRAPHENE ELECTRODE AND METHOD FOR MANUFACTURING THE SAME - The present disclosure relates to a nanolaser generator using a transparent graphene electrode, a method for manufacturing the same, and a single nanopillar LED using the same. The nanolaser generator includes a microdisk resonator, a protruding dielectric ring provided to surround a boundary surface of the microdisk resonator, an external dielectric ring provided at an outer side of the microdisk resonator, and a transparent graphene electrode provided at upper surfaces of the microdisk resonator, the protruding dielectric ring and the external dielectric ring. Therefore, the processes required for generating a nanolaser may be reduced by half in comparison to a general technique, and a nanolaser may be generated just with a micro current. | 08-21-2014 |
20150063398 | LASER LIGHT SOURCE - A laser light source includes an optical resonator and a first optical filter. The first optical filter is provided outside the optical resonator, and does not constitute an optical resonator structure. For example, antireflection coating is performed on the optical resonator side of the first optical filter and on a surface on the opposite side thereto, and a reflection structure in which light after passing through the first optical filter is reflected in the direction to the optical resonator is not present on an optical path of the light. | 03-05-2015 |