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Class Information
Number: 398/37
Name: Optical communications > Diagnostic testing > Determination of communication parameter > Amplifier or repeater operation
Description: Subject matter wherein the particular communication parameter is related to a performance of an amplifier or a repeater.










Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8712237 Method and apparatus for reducing cost of optical amplification in a network Apr. 29, 2014
8705978 Method of efficiently and safely adding and deleting channels in an amplified wavelength division multiplexing system Apr. 22, 2014
8676053 Method for monitoring fiber line state, repeater, submarine cable system Mar. 18, 2014
8630550 Optical repeater and optical signal amplifying method thereof Jan. 14, 2014
8615172 Relay station arrangement method and relay station arrangement device Dec. 24, 2013
8594500 Connection loss scheme for fiber connections in optical communication system Nov. 26, 2013
8582985 Input isolation of a transimpedance amplifier in optical receivers Nov. 12, 2013
8554071 Optical transmission apparatus and continuity testing method Oct. 8, 2013
8542993 Burst power measurements using averaged power measurement Sep. 24, 2013
8526812 Wavelength assignment in an optical WDM network Sep. 3, 2013
8526826 Repeater and method for operating such a repeater Sep. 3, 2013
8437642 Spatial light modulator (SLM)-based optical attenuator May. 7, 2013
8433190 Hot-swapping in-line optical amplifiers in an optical network Apr. 30, 2013
8422121 Optical transmission apparatus and optical signal level checking method Apr. 16, 2013
8417115 Quantifying link quality in an optoelectronic module Apr. 9, 2013
8396359 Method for engineering connections in a dynamically reconfigurable photonic switched network Mar. 12, 2013
8355631 Reducing optical service channel interference in phase modulated wavelength division multiplexed (WDM) communication systems Jan. 15, 2013
8351797 Repeater and repeating method Jan. 8, 2013
8331778 WDM transmission apparatus Dec. 11, 2012
8275269 Distributed Raman amplifier and optical communication system Sep. 25, 2012
8265481 Wavelength assignment in an optical WDM network Sep. 11, 2012
8213798 Optical transmission apparatus, wavelength division multiplexing optical communication system and optical transmission method Jul. 3, 2012
8208812 Optical relay device and optical relay transmission system Jun. 26, 2012
8139951 Fiber-optic long-haul transmission system Mar. 20, 2012
8055130 Optical transceiver amplifier Nov. 8, 2011
8055129 Alien wavelength channel balancing and line amplifier optimization Nov. 8, 2011
8055127 Wavelength division multiplex optical ring network Nov. 8, 2011
8045853 Mechanism for tracking wavelengths in a DWDM network without specialized hardware Oct. 25, 2011
8036526 Method and apparatus for restoration of optical ring network operating conditions after a fault is repaired Oct. 11, 2011
8009983 High loss loop back for long repeater span Aug. 30, 2011
7982865 Method and device for monitoring an optical amplifier, in particular, an optical fiber amplifier Jul. 19, 2011
7970282 Network repeater, repeater controlling method and program product Jun. 28, 2011
7953321 Optical transmission equipment and optical add-drop multiplexer May. 31, 2011
7941047 Method for engineering connections in a dynamically reconfigurable photonic switched network May. 10, 2011
7936749 Node device for transfering supervisory control information in photonic network May. 3, 2011
7917030 Fiber optic communication system with automatic line shutdown/power reduction Mar. 29, 2011
7873274 Methods and systems to stabilize an optical network against nodal gain changes Jan. 18, 2011
7822304 Laser beam multiplexer Oct. 26, 2010
7822055 Fibre channel credit extender and repeater Oct. 26, 2010
7817917 System and method for monitoring telecommunications equipment Oct. 19, 2010
7809263 Optical transmission apparatus and control method therefor Oct. 5, 2010
7792430 Automatic power restoring method and optical communication system Sep. 7, 2010
7787765 Method and apparatus device for initializing an end-to-end link in a fiber optic communications system Aug. 31, 2010
7773886 Optical regenerator in optical fiber communication system Aug. 10, 2010
7729620 Methods and systems for controlling optical power attenuation Jun. 1, 2010
7725034 Optical transmision apparatus and control method therefor May. 25, 2010
7715721 Wavelength assignment in an optical WDM network May. 11, 2010
7697845 Optical transmission equipment and optical add-drop multiplexer Apr. 13, 2010
7680419 Repeater and repeating method Mar. 16, 2010
7657187 Optical transmission apparatus and optical transmission control method for wavelength-division-multiplexed optical signal Feb. 2, 2010

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