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Class Information
Number: 372/38.07
Name: Coherent light generators > Particular component circuitry > Controlling current or voltage to laser
Description: Subject matter wherein the particular component circuitry regulates the supply of current or voltage to the coherent light generator.










Patents under this class:
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Patent Number Title Of Patent Date Issued
7668464 Control of peaking of laser driver current to improve eye quality Feb. 23, 2010
7664150 Diode laser electrical isolation system Feb. 16, 2010
7660336 Method and device for determining an activation threshold Feb. 9, 2010
7656917 Circuit arrangement for generating light pulses Feb. 2, 2010
7653101 Excessive current input suppressing semiconductor laser light emitting circuit Jan. 26, 2010
7653102 Method and apparatus for controlling output power levels of a laser used for optical data transmission based on data rate-speed optical feedback Jan. 26, 2010
7643525 Current driver and power control for electrophotographic devices Jan. 5, 2010
7636377 Optical disc recorder laser power control Dec. 22, 2009
7634197 Compensation for temperature and voltage effects when monitoring parameters in a transceiver module Dec. 15, 2009
7630422 Driver for vertical-cavity surface-emitting laser and method Dec. 8, 2009
7609098 Driver circuit for electronic components Oct. 27, 2009
7609734 Switched gate current driver Oct. 27, 2009
7609735 Providing a suitable output current to a laser diode Oct. 27, 2009
7609736 Laser power control arrangements in electro-optical readers Oct. 27, 2009
7599412 Method and electronic circuit for controlling of a supply voltage of a laser diode Oct. 6, 2009
7593645 Optical transmitter Sep. 22, 2009
7586965 Laser drive device and image forming apparatus incorporating the same Sep. 8, 2009
7580434 Dual laser driver architecture in an optical transceiver Aug. 25, 2009
7573922 Semiconductor laser driving unit and image forming apparatus having the same Aug. 11, 2009
7573923 Laser drive circuit and method providing high limit clipping corresponding to low limit clipping in a laser Aug. 11, 2009
7564881 Optical transmission module with digital adjustment and the adjusting method Jul. 21, 2009
7564882 Integrated circuit having on-chip laser burn-in circuit Jul. 21, 2009
7545839 Apparatus and method for driving a pulsed laser diode Jun. 9, 2009
7542684 Light emitting diode driving device and optical transmission device including the same Jun. 2, 2009
7535939 Optical power control apparatus, optical beam scanning apparatus, image forming apparatus, and optical power control method May. 19, 2009
7532653 Laser turn-on accelerator independent of bias control loop bandwidth May. 12, 2009
7529282 Apparatus for driving light emitting element and system for driving light emitting element May. 5, 2009
7526006 Laser power control circuit Apr. 28, 2009
7518975 Operating current modifying device and method Apr. 14, 2009
7519093 Laser driver circuit and system Apr. 14, 2009
7515620 Method for optimizing laser diode operating current Apr. 7, 2009
7515619 Laser control circuit Apr. 7, 2009
7512163 Dual current control for laser diode driver circuit Mar. 31, 2009
7512164 Laser drive IC and optical transceiver using same Mar. 31, 2009
7512166 Apparatus and method for controlling optical power and extinction ratio Mar. 31, 2009
7505691 Optical emission module Mar. 17, 2009
7505497 Laser driver for high speed short distance links Mar. 17, 2009
7502394 System and method for modulating a semiconductor laser Mar. 10, 2009
7502400 Drive circuit and method of operating a semiconductor laser Mar. 10, 2009
7499478 Laser driver, optical disk apparatus using the same, and laser control method Mar. 3, 2009
7499479 Laser diode driver circuit and optical communication device Mar. 3, 2009
7496121 Laser modulating and driving device and image reproducing apparatus using the same Feb. 24, 2009
7496122 High speed data channel including a CMOS VCSEL driver and a high performance photodetector and CMOS photoreceiver Feb. 24, 2009
7492800 High speed data channel including a CMOS VCSEL driver and a high performance photodetector and CMOS photoreceiver Feb. 17, 2009
7492799 Light-emitting element driver Feb. 17, 2009
7492796 Method and apparatus for automatically controlling a power of a laser diode Feb. 17, 2009
7486708 Method and system for stabilizing operation of laser sources Feb. 3, 2009
7486711 Automatic power control filter circuit and optical disc device Feb. 3, 2009
7483455 Control method and control circuit for laser diode, and optical transmitter using the same Jan. 27, 2009
7483458 Wavelength control in semiconductor lasers Jan. 27, 2009

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