| Patent | Date |
|---|
Optical transmission apparatus and optical attenuation amount control method
Grant 8,116,626 - Takeyama , et al. February 14, 2 | 2012-02-14 |
Optical amplifier
Grant 8,064,130 - Nishihara , et al. November 22, 2 | 2011-11-22 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
Grant 8,054,455 - Sugaya , et al. November 8, 2 | 2011-11-08 |
Gain control apparatus, optical transmission apparatus, gain control method for optical amplifier, and wavelength multiplex optical transmission system
Grant 7,843,631 - Onaka , et al. November 30, 2 | 2010-11-30 |
Optical transmission apparatus and method of controlling the same
Grant 7,813,642 - Muro , et al. October 12, 2 | 2010-10-12 |
Optical surge suppressive type optical amplifier
Grant 7,751,119 - Onaka , et al. July 6, 2 | 2010-07-06 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
App 20100157416 - Sugaya; Yasushi ; et al. | 2010-06-24 |
Optical fiber, manufacturing method of the same, and optical amplifier
Grant 7,729,588 - Nishihara , et al. June 1, 2 | 2010-06-01 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
Grant 7,719,758 - Sugaya , et al. May 18, 2 | 2010-05-18 |
Individual band gain equalizer for optical amplifiers
Grant 7,715,093 - Nishihara , et al. May 11, 2 | 2010-05-11 |
Optical amplifier and optical monitor circuit
Grant 7,688,498 - Onaka , et al. March 30, 2 | 2010-03-30 |
Optical transmission apparatus and optical attenuation amount control method
App 20090297143 - Takeyama; Tomoaki ; et al. | 2009-12-03 |
Optical transmission apparatus
Grant 7,616,848 - Takeyama , et al. November 10, 2 | 2009-11-10 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
App 20090219609 - Sugaya; Yasushi ; et al. | 2009-09-03 |
Optical amplification characteristics simulation apparatus and optical amplification characteristics simulation method
Grant 7,551,347 - Hayashi , et al. June 23, 2 | 2009-06-23 |
Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification
Grant 7,529,022 - Onaka , et al. May 5, 2 | 2009-05-05 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
Grant 7,505,197 - Sugaya , et al. March 17, 2 | 2009-03-17 |
Optical Surge Suppressive Type Optical Amplifier
App 20080310011 - Onaka; Miki ; et al. | 2008-12-18 |
Individual Band Gain Equalizer For Optical Amplifiers
App 20080239470 - Nishihara; Masato ; et al. | 2008-10-02 |
Gain Control Apparatus, Optical Transmission Apparatus, Gain Control Method For Optical Amplifier, And Wavelength Multiplex Optical Transmission System
App 20080239469 - ONAKA; Miki ; et al. | 2008-10-02 |
Optical amplifier for amplifying multi-wavelength light
Grant 7,417,791 - Onaka , et al. August 26, 2 | 2008-08-26 |
Optical amplifier, optical amplification repeater and pump light supply control method
Grant 7,400,441 - Muro , et al. July 15, 2 | 2008-07-15 |
Optical amplifier for wide band Raman amplification of wavelength division multiplexed (WDM) signal lights
Grant 7,394,589 - Onaka , et al. July 1, 2 | 2008-07-01 |
Optical amplifier with pump light source control for Raman amplification
Grant 7,362,499 - Hayashi , et al. April 22, 2 | 2008-04-22 |
Optical amplification characteristics simulation apparatus and optical amplification characteristics simulation method
App 20080088915 - Hayashi; Etsuko ; et al. | 2008-04-17 |
Individual band gain equalizer for optical amplifiers
Grant 7,359,112 - Nishihara , et al. April 15, 2 | 2008-04-15 |
Optical Transmission Apparatus And Method Of Controlling The Same
App 20080080865 - Muro; Shinichirou ; et al. | 2008-04-03 |
Optical Fiber, Manufacturing Method Of The Same, And Optical Amplifier
App 20080013904 - Nishihara; Masato ; et al. | 2008-01-17 |
Optical surge suppresive type optical amplifier
App 20080007818 - Onaki; Miki ; et al. | 2008-01-10 |
Optical transmission apparatus
App 20070274725 - Takeyama; Tomoaki ; et al. | 2007-11-29 |
Optical Amplifier, Optical Amplification Repeater And Pump Light Supply Control Method
App 20070268569 - MURO; Shinichirou ; et al. | 2007-11-22 |
Optical amplifier having polarization mode dispersion compensation function
Grant 7,268,936 - Onaka , et al. September 11, 2 | 2007-09-11 |
Apparatus and method for amplification medium performance simulation, and optical amplifier
Grant 7,212,335 - Nishihara , et al. May 1, 2 | 2007-05-01 |
Raman amplifier
Grant 7,180,654 - Sugaya , et al. February 20, 2 | 2007-02-20 |
Control method of optical fiber amplifier and optical transmission system
Grant 7,145,718 - Sugaya , et al. December 5, 2 | 2006-12-05 |
Optical multiplexing method and optical multiplexer, and optical amplifier using same
Grant 7,127,139 - Onaka , et al. October 24, 2 | 2006-10-24 |
Amplification method and optical amplifier for wavelength division multiplexed signal light
Grant 7,119,950 - Ohshima , et al. October 10, 2 | 2006-10-10 |
Control apparatus and method for optical amplifier, optical amplifier, optical transmission apparatus, individual band gain equalizer, wavelength multiplexing transmission apparatus, optical amplifier and wavelength multiplexing transmission system using the same equalizer
App 20060203329 - Nishihara; Masato ; et al. | 2006-09-14 |
Optical amplifier and controlling method for Raman amplifier
Grant 7,095,553 - Hayashi August 22, 2 | 2006-08-22 |
Optical amplifier with pump light source control for Raman amplification
App 20060152796 - Hayashi; Etsuko ; et al. | 2006-07-13 |
Optical amplifier and gain tilt compensation method
Grant 7,072,100 - Nishihara , et al. July 4, 2 | 2006-07-04 |
Optical apparatus with loss compensation capability and optical amplifier for loss compensation
Grant 7,061,669 - Nakashima , et al. June 13, 2 | 2006-06-13 |
Optical amplifier with pump light source control for Raman amplification
Grant 7,042,636 - Hayashi , et al. May 9, 2 | 2006-05-09 |
Amplification method and optical amplifier for wavelength division multiplexed signal light
App 20060023298 - Ohshima; Chihiro ; et al. | 2006-02-02 |
Optical amplifier and optical monitor circuit
App 20060024063 - Onaka; Miki ; et al. | 2006-02-02 |
Apparatus and method for amplification medium performance simulation, and optical amplifier
App 20050254119 - Nishihara, Masato ; et al. | 2005-11-17 |
Optical amplifier for amplifying multi-wavelength light
App 20050248834 - Onaka, Miki ; et al. | 2005-11-10 |
Control method of optical fiber amplifier and optical transmission system
App 20050225843 - Sugaya, Yasushi ; et al. | 2005-10-13 |
Optical Amplifier And Controlling Method For Raman Amplifier
App 20050219681 - Hayashi, Etsuko | 2005-10-06 |
Optical multiplexing method and optical multiplexer, and optical amplifier using same
App 20050185885 - Onaka, Miki ; et al. | 2005-08-25 |
Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification
App 20050132785 - Onaka, Miki ; et al. | 2005-06-23 |
Optical amplifier with pump light source control for Raman amplification
Grant 6,891,661 - Hayashi , et al. May 10, 2 | 2005-05-10 |
Optical amplifier and method for amplifying wavelength multiplexed transmission signal light
Grant 6,891,662 - Sugaya , et al. May 10, 2 | 2005-05-10 |
Optical apparatus with loss compensation capability and optical amplifier for loss compensation
App 20050088727 - Nakashima, Hisao ; et al. | 2005-04-28 |
Optical amplification apparatus utilizing raman amplification and controlling method thereof
Grant 6,873,455 - Sugaya , et al. March 29, 2 | 2005-03-29 |
Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification
Grant 6,862,133 - Onaka , et al. March 1, 2 | 2005-03-01 |
Optical amplifier with pump light source control for Raman amplification
App 20050024714 - Hayashi, Etsuko ; et al. | 2005-02-03 |
Optical amplification apparatus using Raman amplification
Grant 6,847,478 - Tanaka , et al. January 25, 2 | 2005-01-25 |
Optical amplifier having polarization mode dispersion compensation function
App 20040246568 - Onaka, Miki ; et al. | 2004-12-09 |
Method and device for optical amplification
Grant 6,823,107 - Muro , et al. November 23, 2 | 2004-11-23 |
Optical amplifier provided with control function of pumping light, and optical transmission system using the same
App 20040196158 - Sugaya, Yasushi ; et al. | 2004-10-07 |
Optical amplifier for amplifying multi-wavelength light
Grant 6,747,790 - Onaka , et al. June 8, 2 | 2004-06-08 |
Variable wavelength light source apparatus and optical amplifier using same
Grant 6,741,390 - Onaka , et al. May 25, 2 | 2004-05-25 |
Optical amplifier for amplifying multi-wavelength light
Grant 6,738,184 - Hayashi , et al. May 18, 2 | 2004-05-18 |
Optical amplifier with pump light source control for Raman amplification
App 20040080813 - Hayashi, Etsuko ; et al. | 2004-04-29 |
Raman amplifier
App 20040080812 - Sugaya, Yasushi ; et al. | 2004-04-29 |
Optical amplification apparatus using Raman amplification
Grant 6,683,712 - Tanaka , et al. January 27, 2 | 2004-01-27 |
Optical amplifier
App 20030234976 - Nishihara, Masato ; et al. | 2003-12-25 |
Variable wavelength light source apparatus and optical amplifier using same
App 20030206336 - Onaka, Miki ; et al. | 2003-11-06 |
Optical amplification apparatus utilizing raman amplification and controlling method thereof
App 20030193713 - Sugaya, Yasushi ; et al. | 2003-10-16 |
Optical amplifier with pump light source control for raman amplification
Grant 6,624,926 - Hayashi , et al. September 23, 2 | 2003-09-23 |
Raman amplifier and wavelength division multiplexing optical communication system, and method of controlling raman amplification
App 20030137720 - Onaka, Miki ; et al. | 2003-07-24 |
Optical amplification apparatus utilizing Raman amplification and controlling method thereof
Grant 6,577,437 - Sugaya , et al. June 10, 2 | 2003-06-10 |
Optical amplifier for wide band Raman amplification of wavelength division multiplexed (WDM) signal lights
App 20030095323 - Onaka, Miki ; et al. | 2003-05-22 |
Method and device for optical amplification
App 20030063850 - Muro, Shinichirou ; et al. | 2003-04-03 |
Optical amplifier and gain tilt compensation method
App 20030039026 - Nishihara, Masato ; et al. | 2003-02-27 |
Optical amplifier for wide band raman amplification of wavelength division multiplexed (WDM) signal lights
Grant 6,510,000 - Onaka , et al. January 21, 2 | 2003-01-21 |
Optical amplifier for amplifying multi-wavelength light
App 20020191276 - Onaka, Miki ; et al. | 2002-12-19 |
Optical amplification apparatus using raman amplification
App 20020181078 - Tanaka, Tomoto ; et al. | 2002-12-05 |
Optical amplification apparatus utilizing raman amplification and controlling method thereof
App 20020176154 - Sugaya, Yasushi ; et al. | 2002-11-28 |
Optical amplifier for amplifying multi-wavelength light
App 20020101652 - Hayashi, Etsuko ; et al. | 2002-08-01 |
Optical amplifier and method for amplifying wavelength multiplexed transmission signal light
App 20020093728 - Sugaya, Yasushi ; et al. | 2002-07-18 |
Optical amplification apparatus utilizing Raman amplification and controlling method thereof
Grant 6,388,801 - Sugaya , et al. May 14, 2 | 2002-05-14 |
Optical amplification apparatus using Raman amplification
App 20020044336 - Tanaka, Tomoto ; et al. | 2002-04-18 |
Optical Amplification Apparatus Utilizing Raman Amplification And Controlling Method Thereof
App 20020041429 - Sugaya, Yasushi ; et al. | 2002-04-11 |
Optical fibers and optical fiber amplifiers
Grant 5,856,882 - Yanagita , et al. January 5, 1 | 1999-01-05 |
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