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Class Information
Number: 359/341.41
Name: Optical: systems and elements > Optical amplifier > Optical fiber > Feedback > Automatic gain control (agc)
Description: Subject matter wherein the feedback provides an adjustment based on a quantitative statement (e.g., wavelength) of the amplification.










Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8582201 Inexpensive variable rep-rate source for high-energy, ultrafast lasers Nov. 12, 2013
8553319 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied Oct. 8, 2013
8553318 Optical amplifying device, gain control method, optical transmission device, and gain control device Oct. 8, 2013
8493652 Method for controlling an erbium doped fiber amplifier (EDFA) and amplifier arrangement Jul. 23, 2013
8427739 Optical amplifier Apr. 23, 2013
8390923 Optical amplifier and optical amplification method Mar. 5, 2013
8380032 Semiconductor optical amplifier module Feb. 19, 2013
8373926 Differentiation of power and channel count changes in optically amplified links Feb. 12, 2013
8363312 Pulse-energy-stabilization and first-pulse-suppression optical gain fiber apparatus and method Jan. 29, 2013
8363311 Optical amplifier and a method of light amplification Jan. 29, 2013
8355200 Optical fiber transport devices and optical communication networks Jan. 15, 2013
8326155 Wavelength division multiplex (WDM) optical demultiplexer Dec. 4, 2012
8279518 Optical amplifier Oct. 2, 2012
8213078 Raman amplifier and raman amplifier adjustment method Jul. 3, 2012
8164826 Multi-stage optical amplifier and method of controlling the same Apr. 24, 2012
8139286 Self-adapting feed forward control apparatus and method in an optical amplifier Mar. 20, 2012
8134776 Optical amplifier output control based on change in detected input power Mar. 13, 2012
8107819 Systems and methods for interference prediction Jan. 31, 2012
8102595 Optical transmission system with optical amplifier gain setup based on difference between signal loss and noise light loss Jan. 24, 2012
8098426 Two-way amplifier for passive optical network (PON) Jan. 17, 2012
8094369 Regulatable optical amplifier, and method for regulating an optical amplifier Jan. 10, 2012
8049955 Optical amplification apparatus, optical communication apparatus, and optical communication method Nov. 1, 2011
7990608 Optical transmission system Aug. 2, 2011
7969649 Controller which controls a variable optical attenuator to control the power level of a wavelength-multiplexed optical signal when the number of channels are varied Jun. 28, 2011
7969648 Gain and signal level adjustments of cascaded optical amplifiers Jun. 28, 2011
7961380 Fast power transient supression in constant power-mode controlled optical amplifiers Jun. 14, 2011
7929201 Multistage optical amplifier with gain control using pump ratio Apr. 19, 2011
7899331 WDM optical transmission system and optical amplifying apparatus Mar. 1, 2011
7876498 Pulse-energy-stabilization approach and first-pulse-suppression method using fiber amplifier Jan. 25, 2011
7864411 Optical amplifier, optical amplifier controller and control method of the same Jan. 4, 2011
7843631 Gain control apparatus, optical transmission apparatus, gain control method for optical amplifier, and wavelength multiplex optical transmission system Nov. 30, 2010
7813650 Optical system Oct. 12, 2010
7760423 Optical amplifier Jul. 20, 2010
7746548 Optical amplifier transient control with gain error limits Jun. 29, 2010
7738165 Amplified spontaneous emission reflector-based gain-clamped fiber amplifier Jun. 15, 2010
7725042 Automated optical transport system May. 25, 2010
7667889 Methods and systems for gain control in pulsed optical amplifiers Feb. 23, 2010
7664170 Bit stream linear equalizer with AGC loop Feb. 16, 2010
7657187 Optical transmission apparatus and optical transmission control method for wavelength-division-multiplexed optical signal Feb. 2, 2010
7643206 Optical amplifier Jan. 5, 2010
7612936 Optical amplifying apparatus for wavelength division multiplexed signals Nov. 3, 2009
7609438 Optical amplifier Oct. 27, 2009
7606488 Wavelength-division-multiplexing optical transmission system and control method thereof Oct. 20, 2009
7589888 Optical amplifier having a constant gain profile Sep. 15, 2009
7554721 Raman amplifier and Raman amplifier adjustment method Jun. 30, 2009
7554720 Optical transmission apparatus with automatic gain control and automatic level control mode selection Jun. 30, 2009
7538937 Optical amplifier May. 26, 2009
7535632 Compensation of gain variations in a multistage optical amplifier May. 19, 2009
7511881 Amplified spontaneous emission reflector-based gain-clamped fiber amplifier Mar. 31, 2009
7511883 Optical amplifying method, optical amplifying apparatus, and optical amplified transmission system using the apparatus Mar. 31, 2009

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