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Browse by Category: Main > Optical & Optics
Class Information
Number: 372/29.011
Name: Coherent light generators > Particular beam control device > Having particular beam control circuit component > Feedback circuitry
Description: Subject matter wherein a fraction of an output signal from the specific electrical component or group of electrical components is returned to input.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8675708 Laser oscillation apparatus Mar. 18, 2014
8665921 Method and apparatus of automatic power control for burst mode laser transmitter Mar. 4, 2014
8630323 Beam diagnostics and feedback method and system for spectrally beam-combined lasers Jan. 14, 2014
8625645 Solid-state laser apparatus and laser system Jan. 7, 2014
8611382 Output power stabilization for laser diodes using the photon-cooling dependent laser voltage Dec. 17, 2013
8605760 Feedback-enhanced self-injection locking of lasers to optical resonators Dec. 10, 2013
8605763 Temperature measurement and control for laser and light-emitting diodes Dec. 10, 2013
8605764 Laser diode junction temperature compensation Dec. 10, 2013
8576888 Dual laser-power-level control and calibration system for burst-mode and continuous-mode transmitter Nov. 5, 2013
8576887 Semiconductor laser driving unit, optical scanner having semiconductor laser driving unit, and image forming apparatus Nov. 5, 2013
8565274 Optical locking based on optical resonators with high quality factors Oct. 22, 2013
8542711 Fiber laser device Sep. 24, 2013
8532441 Optical device for wavelength locking Sep. 10, 2013
8526474 Multi-beam laser power control circuit and image forming apparatus using the same Sep. 3, 2013
8520711 Optical device and method for controlling the same Aug. 27, 2013
8502110 Multibeam laser device for fabricating a microretarder by heating process Aug. 6, 2013
8488640 Integrated optical comb source system and method Jul. 16, 2013
8483250 Semiconductor laser driving device and image forming apparatus having the same Jul. 9, 2013
8442083 Systems and methods for stabilizing laser frequency based on an isoclinic point in the absorption spectrum of a gas May. 14, 2013
8442081 Quantum cascade laser suitable for portable applications May. 14, 2013
8422521 Laser device of equal-energy pulse synchronous with motion Apr. 16, 2013
8411712 Beam diagnostics and feedback system and method for spectrally beam-combined lasers Apr. 2, 2013
8401045 Regulating a vertical-cavity surface-emitting laser (VCSEL)-based optical communication link Mar. 19, 2013
8345721 Method for driving optical transmitter Jan. 1, 2013
8345719 Wavelength-controlled semiconductor laser device Jan. 1, 2013
8320420 Polarity independent laser monitor diode current sensing circuit for optical modules Nov. 27, 2012
8290004 Laser light source Oct. 16, 2012
8284809 Laser bandwidth interlock capable of single pulse detection and rejection Oct. 9, 2012
8264284 Atomic frequency acquisition device based on self-mixing interference Sep. 11, 2012
8232687 Intelligent laser interlock system Jul. 31, 2012
8204091 Wavelength normalization in phase section of semiconductor lasers Jun. 19, 2012
8189630 Quantum cascade laser suitable for portable applications May. 29, 2012
RE43422 Tunable optical local oscillator May. 29, 2012
8183509 Laser processing apparatus and laser processing method May. 22, 2012
8178826 Control of semiconductor light emitting element May. 15, 2012
8170074 Tracking injection seeding power based on back facet monitoring (BFM) of an injection seeded laser May. 1, 2012
8165179 Closed loop laser control Apr. 24, 2012
8160113 Tailored pulse burst Apr. 17, 2012
8121159 Temperature compensation method for laser power of an optical disk drive Feb. 21, 2012
8094693 Laser control method and laser control circuit Jan. 10, 2012
8080773 Method and apparatus of measuring backward light, and laser processing method Dec. 20, 2011
8073021 Methods for obtaining stabilized output beams from frequency converted light sources and frequency converted light sources utilizing the same Dec. 6, 2011
8073026 Method and apparatus for controlling carrier envelope phase Dec. 6, 2011
8050301 Systems and methods for stabilizing laser frequency based on an isoclinic point in the absorption spectrum of a gas Nov. 1, 2011
8000358 Power monitoring system for a parallel optical transmitter Aug. 16, 2011
7995630 High performance tunable lasers utilizing optical phase-locked loops Aug. 9, 2011
7986720 Circuit and method for driving light-emitting element and optical transmitter Jul. 26, 2011
7970029 Method and apparatus for driving semiconductor lasers, and method and apparatus for deriving drive current patterns for semiconductor lasers Jun. 28, 2011
7967452 Projection type display apparatus Jun. 28, 2011
7961772 Optimized pulse pumped laser system using feedback Jun. 14, 2011

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