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Browse by Category: Main > Optical & Optics
Class Information
Number: 372/38.01
Name: Coherent light generators > Particular component circuitry > Having feedback circuitry
Description: Subject matter wherein the particular component circuitry returns a fraction of an output signal to an input.










Patents under this class:
1 2 3 4 5 6 7 8

Patent Number Title Of Patent Date Issued
8670473 Circuit and method for limiting current to prevent roll-over in laser diodes Mar. 11, 2014
8665920 Method and apparatus for laser diode compensation Mar. 4, 2014
8654804 Optical transmitter with stable output wavelength Feb. 18, 2014
8628988 Conformal metallization process for the fabrication of semiconductor laser devices Jan. 14, 2014
8625645 Solid-state laser apparatus and laser system Jan. 7, 2014
8611381 Laser oscillator control device Dec. 17, 2013
8605764 Laser diode junction temperature compensation Dec. 10, 2013
8605768 Laser apparatus, driving method of the same and optical tomographic imaging apparatus Dec. 10, 2013
8597577 Swept-frequency semiconductor laser coupled to microfabricated biomolecular sensor and methods related thereto Dec. 3, 2013
8576887 Semiconductor laser driving unit, optical scanner having semiconductor laser driving unit, and image forming apparatus Nov. 5, 2013
8576888 Dual laser-power-level control and calibration system for burst-mode and continuous-mode transmitter Nov. 5, 2013
8571079 Average-power control loops and methods through laser supply voltage closed-loop control Oct. 29, 2013
8542711 Fiber laser device Sep. 24, 2013
8520710 Optical transmission module and controlling method for optical transmission module Aug. 27, 2013
8520711 Optical device and method for controlling the same Aug. 27, 2013
8514900 Optical frequency stabilization system and method Aug. 20, 2013
8462826 Laser device Jun. 11, 2013
8457499 Semiconductor laser drive device, semiconductor laser drive method, light transmission device, optical wiring module, and electronic device Jun. 4, 2013
8428092 High-power laser unit wherein laser output can be accurately corrected Apr. 23, 2013
8416820 Active laser guarding system Apr. 9, 2013
8411354 Carrier-envelope-phase stabilization of a master oscillator optical amplifier system Apr. 2, 2013
8379681 Laser diode driving device and image forming apparatus including the same Feb. 19, 2013
8369373 Pre-ionization method for CO.sub.2 gas-discharge laser Feb. 5, 2013
8351480 Digital pulse-width-modulation control of a radio frequency power supply for pulsed laser Jan. 8, 2013
8351473 System and method for laser wavelength control Jan. 8, 2013
8345721 Method for driving optical transmitter Jan. 1, 2013
8320420 Polarity independent laser monitor diode current sensing circuit for optical modules Nov. 27, 2012
8315282 Fourier domain mode locking: method and apparatus for control and improved performance Nov. 20, 2012
8274416 DA converter, solid-state imaging device, and camera system Sep. 25, 2012
8254420 Advanced laser wavelength control Aug. 28, 2012
8238395 Automatic power control (APC) loop for adjusting the bias current of a laser diode Aug. 7, 2012
8238394 Low power consumption pump driving circuit Aug. 7, 2012
8238393 Multi-beam laser light-intensity control circuit and optical scanning apparatus including the same Aug. 7, 2012
8232687 Intelligent laser interlock system Jul. 31, 2012
8228961 Temperature feedback control for long-term carrier-envelope phase locking Jul. 24, 2012
8223812 Optical scanning apparatus Jul. 17, 2012
8204091 Wavelength normalization in phase section of semiconductor lasers Jun. 19, 2012
8189632 Laser emission device and image display device using the same May. 29, 2012
8184670 Smart linear pulsed laser diode driver, and method May. 22, 2012
8178826 Control of semiconductor light emitting element May. 15, 2012
8175126 Arbitrary optical waveform generation utilizing optical phase-locked loops May. 8, 2012
8170077 Internal memory for transistor outline packages May. 1, 2012
8169164 Light output control device for laser light source May. 1, 2012
8170074 Tracking injection seeding power based on back facet monitoring (BFM) of an injection seeded laser May. 1, 2012
8155159 Method and apparatus for calibrating burst mode laser transmitters Apr. 10, 2012
8121160 Driver circuit for semiconductor laser diode driven in differential mode Feb. 21, 2012
8102889 Multi-chamber gas discharge laser bandwidth control through discharge timing Jan. 24, 2012
8098698 Active spectral control of DUV laser light source Jan. 17, 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

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