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US20110211599 THERMAL CONTROL OF OPTICAL FILTER WITH LOCAL SILICON FRAME  
Briefly, in accordance with one or more embodiments, a thermally controlled optical filter comprises a frame coupled to an etalon where the frame includes a resistive thermal device disposed on...
US20140177660 WAVELENGTH STABILIZATION  
Systems and methods of the invention generally relate to feedback loops for wavelength stabilization. According to certain aspects, a method of the invention includes filtering light through a...
US20110069727 BRAGG GRATING STRUCTURE  
A Bragg grating has a local reflection strength which varies with position along the length of the grating so as to generate a non-uniform wavelength reflection spectrum, enabling compensation for...
US20150043002 Dielectric-Enhanced Metal Coatings for MEMS Tunable Filters  
The present invention concerns the use of hybrid metal-dielectric optical coatings as the end reflectors of laser cavities and/or in the mirror structures used in other optical resonators, such as...
US20140010248 TUNABLE BRAGG GRATING AND A TUNABLE LASER DIODE USING SAME  
A spatially modulated waveguide Bragg grating mirror is suspended over a substrate by plurality of fingers extending laterally away from the waveguide centerline. The positions of the fingers are...
US20050030990 Stability factors for tuneable multi-section semiconductor lasers  
A method is described for qualifying a multisection semiconductor laser using measurements of excursions from stable operating conditions to neighbouring mode boundaries at which the laser...
US20080043786 Tunable light source for use in microscopy  
A tunable lighting source, especially for a microscope, which contains a laser, in which the lighting source delivers spectrally variable and spatially coherent radiation. The tunable lighting...
US20120189026 TUNABLE RESONATORS  
Various embodiments of the present invention relate to electronically tunable ring resonators. In one embodiment of the present invention, a resonator structure (300,1200) includes an inner...
US20090303487 TUNABLE PHOTONIC CAVITIES FOR IN-SITU SPECTROSCOPIC TRACE GAS DETECTION  
Compact tunable optical cavities are provided for in-situ NIR spectroscopy. MEMS-tunable VCSEL platforms represents a solid foundation for a new class of compact, sensitive and fiber compatible...
US20060140228 Semi-integrated designs with in-waveguide mirrors for external cavity tunable lasers  
Semi-integrated external cavity diode laser (ECDL) designs including integrated structures comprising a gain section, modulator section, and optional phase control section. Each integrated...
US20050111498 Mode behavior of single-mode semiconductor lasers  
Mode behavior of single longitudinal mode semiconductor lasers are modeled and employed for configuring external cavity lasers, including external cavity diode lasers (ECDLs). In particular,...
US20050286570 Tunable laser with a concave diffraction grating  
A tunable laser including an optical gain medium, a diffraction grating, and a tuning mechanism. In general, the optical gain medium is configured to emit a light beam from a front facet and a...
US20050271089 Tuneable laser  
A tuneable laser including; a light creating section to generate light, the light creating section including a waveguide, and a tuneable section in which there is a waveguide connected to the...
US20080285602 Narrow-Spectrum Laser Device  
A spectral purity range (E95) of a laser beam output from an amplifying laser device (300) is measured by spectral purity range measuring means. To have the measured spectral purity range (E95)...
US20080204383 Multicolor Light Emitting Device Incorporating Tunable Quantum Confinement Devices  
A multicolor light emitting optical device is a programmable, multifunctional, general-purpose, solid-state light source. The device can use any of several light sources, including LEDs. The...
US20130315268 TUNABLE OPTICAL FILTER AND OPTICAL SOURCE  
Disclosed are a wavelength tunable optical filter and an optical source which can achieve a wideband, a high speed wavelength tuning and a consecutive variation, and can be simply manufactured....
US20110103415 OPTICAL DEVICE FOR WAVELENGTH LOCKING  
An optical device comprising a 1×2 optical coupler on a planar substrate and a waveguide on the planar substrate, the waveguide having a first arm and a second arm coupled to the 1×2 optical...
US20080232411 Bragg Grating Structure  
A Bragg grating has a local reflection strength which varies with position along the length of the grating so as to generate a non-uniform wavelength reflection spectrum, enabling compensation for...
US20140098829 LIGHT SOURCE, AND OPTICAL COHERENCE TOMOGRAPHY MODULE  
An optical module includes a light source. The light source can be a swept wavelength light source, and optical module includes a wavemeter. The wavemeter includes a wavemeter tap capable of...
US20060092995 High-power mode-locked laser system  
A multi-wavelength, commonly mode-locked external cavity laser system includes a solid state gain element generating a collinearly propagating multi-wavelength optical beam, a diffracting element...
US20080298402 Thermally Controlled External Cavity Tuneable Laser  
The present invention relates to an external-cavity tuneable laser including a gain medium (2) and a tuneable mirror (8), wherein at least the tuneable mirror is in thermal contact, with a...
US20080159351 MECHANICALLY TUNABLE ELASTOMERIC OPTOFLUIDIC DISTRIBUTED FEEDBACK DYE LASERS  
The invention relates to a microfluidic dye laser including a pump light source configured to provide light having a pump light wavelength. The microfluidic dye laser also includes an elastomer...
US20100085992 Arbitrary Optical Waveform Generation Utilizing Optical Phase-Locked Loops  
This invention relates to opto-electronic systems using semiconductor lasers driven by optical phase-locked loops that control the laser's optical phase and frequency. Feedback control provides a...
US20070195833 Angular laser control  
A control unit for controlling a laser unit comprising a laser gain medium and an external cavity having a reflecting dispersion device. The laser gain medium is adapted for providing a first beam...
US20090213879 Automated Laser Tuning  
In exemplary embodiments, an ultra short pulse system comprises a laser platform which includes an optical source configured to generate an optical pulse, an optical amplifier configured to...
US20090213878 Broad-Area Microlasers and Methods for Driving Them  
A multi-mode microlaser and a method for driving a multi-mode broad-area microlaser such as a multi-mode VCSEL is described such that the multi-mode microlaser shows an unexpected Gaussian-like...
US20130070795 METHOD TO SWITCH EMISSION WAVELENGTH OF TUNABLE LASER DIODE  
The method to change the emission wavelength of a tunable LD is disclosed. In an ordinary state, the method monitors conditions not only relating to determine the emission wavelength but...
US20060062262 Tunable laser source  
A tunable laser source has a semiconductor laser which outputs laser light over a predetermined wavelength range, a laser driving circuit which supplies a laser driving current to the...
US20110110387 OPTICAL LOCKING BASED ON OPTICAL RESONATORS WITH HIGH QUALITY FACTORS  
Techniques and devices for providing optical locking of optical resonators and lasers.
US20050018719 Tuneable laser with improved suppression of auger recombination  
A junction region for the laser diode may be improved to give an increased wavelength tuning range with improved thermal stability. The region has a homojunction structure that modifies the band...
US20070237191 Devices for high power, high-repetition rate, broadly tunable coherent radiation, and its applications  
The present application is directed to various embodiments of laser systems which include a laser oscillator and a pump source configured to produce coherent light at high repetition rates and...
US20070223554 External cavity laser  
Embodiments of systems and methods are provided for a tunable laser device. The tunable laser device may include a diffraction grating connected to a pivot arm that pivots the diffraction grating...
US20060176913 Passively Q-switched laser with adjustable pulse repetition rate  
A method is disclosed for varying a pulse repetition rate of a passively q-switched laser while maintaining other characteristics of the laser radiation. The laser is optically pumped with a...
US20080259971 Method for improving high frequency operation of a vertical cavity surface emitting laser (VCSEL) with monolithically integrated bridge arm  
A vertical cavity laser apparatus is provided. In one embodiment, the apparatus includes an electrically responsive substrate; a support block positioned on the electrically responsive substrate;...
US20050276287 Tunable laser light apparatus  
A tunable laser light apparatus having one or more optoelectronic devices hosting a number of selectively activatable light outputting sources, and an integrally packaged movable lens, is...
US20060203859 Compact multimode laser with rapid wavelength scanning  
In accordance with the present invention, a compact laser system with nearly continuous wavelength scanning is presented. In some embodiments, the compact laser system can be scanned over a broad...
US20060002443 Multimode external cavity semiconductor lasers  
External cavity laser devices provide multimode laser operation by using a wavelength selective element that produces a spectral width profile able to support multiple longitudinal laser modes....
US20100002734 CONTINUOUS WAVELENGTH TUNABLE LASER SOURCE WITH OPTIMUM POSITIONING OF PIVOT AXIS FOR GRATING  
A laser source (10) for generating a continuously wavelength tunable light (12) includes a gain media (16), an optical output coupler (36F), a cavity collimator (38A), a diffraction grating (30),...
US20090028194 TUNABLE LASER  
A mode hop-free tunable laser including a gain medium, a microfabricated blazed grating, defining an external cavity of a given length, the blazed grating lying in a general plane and including a...
US20090219956 Device for Generating Narrowband Optical Radiation  
Optical parametric generation is disclosed, wherein a bulk Bragg grating is used as an element for providing narrow wavelength bandwidth. Various embodiments for obtaining improved performance and...
US20070014319 Continuously Tunable External Cavity Diode Laser Sources With High Tuning And Switching Rates And Extended Tuning Ranges  
An external cavity structure including: a light source for generating a light beam; a dispersive system which in combination with the light source defines a cavity, the dispersive system for...
US20050018720 Contact length trimming or vernier resistor trimming of a semiconductor laser source contact to change the source applied current density and resulting operational wavelength  
A laser source or a plurality of laser sources in a photonic integrated circuit (PIC) are provided with an electrical contact that is either segmented or is connected to a series of vernier...
US20060072632 Semiconductor laser with tilted fabry-perot tunable filter  
An optical power control system for a semiconductor source spectroscopy system controls power fluctuations in the tunable signal from the spectroscopy system and thus improves the noise...
US20140268169 WIDELY TUNABLE SWEPT SOURCE  
A high-speed, single-mode, high power, reliable and manufacturable wavelength-tunable light source operative to emit wavelength tunable radiation over a wavelength range contained in a wavelength...
US20110235660 DRIVER CIRCUIT FOR TUNABLE LD  
An LD driver is disclosed where the power dissipation is reduced without enlarging the circuit scale. The LD driver, which drives a tunable LD including a SG-DGB region, a CSG-DBR region, and an...
US20090252183 An Optical Device for Addressing a Slave Cavity with a Wide-Band Laser Source  
The invention concerns an optical device comprising an optical source for emitting a light beam in a plurality of emitting wavelengths and at least one laser, each of said at least one laser...
US20140010249 METHOD TO TUNE EMISSION WAVELENGTH OF WAVELENGTH TUNABLE LASER DIODE  
A method to tune an emission wavelength of a wavelength tunable LD is disclosed. The wavelength tunable LD includes two regions each providing micro heaters to modify the refractive index of micro...
US20080219301 Sweep Speed Compensation  
A method of manipulating a laser source, includes analyzing an optical signal generated by the laser source, evaluating on the basis of the analysis an actual indicator corresponding with an...
US20080267230 Device For Wide Range Continuous Wavelength Sweeping on a Set of Tunable Laser Sources  
A device for wide range continuous wavelength sweeping on a set of tunable laser sources over a predetermined global wavelength range, the device working with at least one functional pair of...
US20050232314 External oscillation type mode-locking semiconductor laser  
An external-cavity mode-locked semiconductor laser includes: a semiconductor laser device including a gain region and a saturable absorption region; a reflecting mirror; and a modulation bias...