| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 372011000 | Absorption type | 20 |
| 20090016385 | Passive Q switch laser device - A laser apparatus | 01-15-2009 |
| 20090080473 | SEMICONDUCTOR SATURABLE ABSORBER AND FABRICATION METHOD THEREOF - A semiconductor saturable absorber and the fabrication method thereof are provided. The semiconductor saturable absorber includes a Fe-doped InP substrate, a periodic unit comprising an AlGaInAs QW formed on the Fe-doped InP substrate and an InAlAs barrier layer formed on one side of the AlGaInAs QW, and another InAlAs barrier layer formed on the other side of the AlGaInAs QW. Each of the InAlAs barrier layers has a width being a half-wavelength of a light emitted by the AlGaInAs QW. | 03-26-2009 |
| 20100142565 | LASER LIGHT SOURCE - The present invention relates to a laser light source having a structure that has high durability to support high power output. The laser light source is an optical device that pulse-oscillates laser light and has a resonator, a rare earth element doped fiber, pumping means, Q switch means, and a condensing lens. The resonator forms a resonance optical path. A fiber is inserted on the resonance optical path and outputs radiation light by supply of pumping energy. The pumping means continuously supplies pumping energy to the fiber. The Q switch means modulates resonator loss of the resonator. The condensing lens condenses the radiation light whose spot size has been expanded and which propagates from the fiber to the Q switch means. The Q switch means is disposed such that a portion contributing to at least a resonator loss modulation is located at the condensing point of radiation light which is condensed by the condensing lens, and mechanically changes formation and interruption of the resonance optical path by transmitting or interrupting the radiation light in the contributing portion. | 06-10-2010 |
| 20100215063 | PULSE LASER APPARATUS - The pulse laser light source | 08-26-2010 |
| 20100278199 | Pulsed Laser System With Optimally Configured Saturable Absorber - A high power pulsed laser system is configured with at least two gain blocks and with at least one saturable absorber (SA) coupled to the output and input of the respective gain blocks. The SA is configured so that Qsat_sa| 11-04-2010 | |
| 20100309936 | PULSED MICROCHIP LASER - The invention relates to a passively triggered microchip laser ( | 12-09-2010 |
| 20110150012 | PASSIVELY Q-SWITCHED SIDE PUMPED MONOLITHIC RING LASER - Disclosed herein are systems and methods for generating a side-pumped passively Q-switched non-planar ring oscillator. The method introduces a laser into a cavity of a crystal, the cavity having a round-trip path formed by a reflection at a dielectrically coated front surface, a first internal reflection at a first side surface of the crystal at a non-orthogonal angle with the front, a second internal reflection at a top surface of the crystal, and a third internal reflection at a second side surface of the crystal at a non-orthogonal angle with the front. The method side pumps the laser at the top or bottom surface with a side pump diode array beam and generates an output laser emanating at a location on the front surface. The design can include additional internal reflections to increase interaction with the side pump. Waste heat may be removed by mounting the crystal to a heatsink. | 06-23-2011 |
| 20110158267 | Pulsed laser system with a thulium-doped saturable absorber Q-switch - A pulsed laser system having a Tm | 06-30-2011 |
| 20110188522 | REDUCTION OF TIMING JITTER IN A PASSIVE Q-SWITCHED SOLID STATE LASER - A method and device for reducing the timing jitter in a passive Q-switched Nd:YAG solid state laser by spatially selective bleaching a thin sheet of a saturable absorber of Cr | 08-04-2011 |
| 20110243158 | MICROCRYSTAL LASER FOR GENERATING LASER PULSES - A microcrystal laser for generating laser pulses has a laser resonator which has a laser medium arranged between two mirrors; and an arrangement for stabilizing the optical path length is provided. The laser resonator has a saturable absorber medium for pulse generation. | 10-06-2011 |
| 20120177070 | System for Emitting a Polychromatic Light, Provided with Coupled Sub-Cavities - A system for emitting a polychromatic light, has a laser cavity device used to optically pump the laser cavity emit radiation according to at least one excitation wavelength and light guiding mechanism arranged in such a way as to supply a polychromatic light to an outlet in the event of excitation by the radiation in a non-linear interaction regime. In the system, the guiding mechanism is arranged inside a cavity formed by at least two sub-cavities, a first sub-cavity forming the laser cavity and a second sub-cavity comprising the guiding mechanism, the first and second sub-cavities being coupled. | 07-12-2012 |
| 20120243563 | COMPACT MULTI-WAVELENGTH AND MULTI-BEAM LASER - A compact solid state laser that generates multiple wavelengths and multiple beams that are parallel, i.e., bore-sighted relative to each other, is disclosed. Each of the multiple laser beams can be at a different wavelength, pulse energy, pulse length, repetition rate and average power. Each of the laser beams can be turned on or off independently. The laser is comprised of an optically segmented gain section, common laser resonator with common surface segmented cavity mirrors, optically segmented pump laser, and different intra-cavity elements in each laser segment. | 09-27-2012 |
| 20120269214 | Passively Q-switched Microlaser - A passively Q-switched laser comprises a pump laser diode, a micro laser resonant cavity including a lasing medium and a saturable absorber, a filter and a photodiode. The lasing medium and saturable absorber are bonded together, and dielectric film is coated on the surfaces of the bonded body to form the laser resonant cavity. The filter reflects a portion of the Q-switched laser pulse beam. The photodiode can detect and convert the laser pulse to electric signal for triggering purpose. | 10-25-2012 |
| 20120307849 | LASER APPARATUS AND LASER PROCESSING METHOD - The present invention relates to a laser apparatus having a structure for removing a skirt portion contained in pulsed light, and a laser processing method using the laser apparatus. The laser apparatus comprises a MOPA fiber laser light source which outputs pulsed light having a skirt portion with a light intensity lower than a predetermined value, and a saturable absorber which removes a skirt portion from the pulsed light outputted from the MOPA fiber laser light source. | 12-06-2012 |
| 20120314723 | Pulsed Laser System with Saturable Absorber - A high power pulsed laser system is configured with at least two gain blocks and with at least one saturable absorber (SA) coupled to the output and input of the respective gain blocks. The SA is configured so that Qsat_sa| 12-13-2012 | |
| 20130114627 | LASER SYSTEM AND METHOD FOR PRODUCING A LINEARLY POLARIZED SINGLE FREQUENCY OUTPUT USING POLARIZED AND NON-POLARIZED PUMP DIODES - A laser system comprises a pump diode, fiber, relay optics, and a microchip laser crystal. The pump diode produces light at a first wavelength. The fiber receives the light from the pump diode and produces a round, homogeneous light spot at an output of the fiber. The relay optics receives the light from the fiber. The microchip laser crystal receives the light from the relay optics and produces a linearly polarized single frequency output at a second wavelength. The microchip laser crystal includes a first layer and a second layer. The first layer absorbs the light at the first wavelength and emits light at the second wavelength. The second layer receives the light at the second wavelength and either provides a polarization dependent loss at the second wavelength or maintains a polarization of the light at the second wavelength. | 05-09-2013 |
| 20130121353 | INFRARED LASER - Laser devices are presented in which a graphene saturable absorber and an optical amplifier are disposed in a resonant optical cavity with an optical or electrical pump providing energy to the optical amplifier. | 05-16-2013 |
| 20140169390 | WAVELENGTH-STABILIZED MICROCRYSTAL LASER - A microcrystal laser assembly including a gain-crystal includes a frame having a high thermal conductivity. The frame has a base with two spaced apart portions extending from the base. The gain-crystal has a resonator output minor on one surface thereof. The gain-crystal is supported on the spaced-apart portions of the frame in the space therebetween. Another resonator minor is supported in that space, spaced apart from the output mirror, on a pedestal attached to the base of the frame. The pedestal and the frame have different CTE. Varying the frame temperature varies the spacing between the resonator minors depending on the CTE difference between the pedestal and the frame. | 06-19-2014 |
| 20140362879 | SATURABLE ABSORBERS FOR Q-SWITCHING OF MIDDLE INFRARED LASER CAVATIES - This disclosure demonstrates successfully using single, polycrystalline, hot pressed ceramic, and thin film Fe doped binary chalcogenides (such as ZnSe and ZnS) as saturable absorbing passive Q-switches. The method of producing polycrystalline ZnSe(S) yields fairly uniform distribution of dopant, large coefficients of absorption (5-50 cm | 12-11-2014 |
| 20150117476 | PASSIVELY Q-SWITCHED ELEMENT AND PASSIVELY Q-SWITCHED LASER DEVICE - Provided is a passively Q-switched element or the like, which enables mode selection without increasing the number of components in a resonator in a Q-switched pulse laser or the like that oscillates in a great number of high-order modes and which is also applicable to a waveguide type laser in which a mode cannot be controlled spatially. By combining a saturable absorber ( | 04-30-2015 |
