Inventor
SUYAMA MASUO
JP12 patents
Patents
12 patentsUS5299048AMar 29, 1994
Optical amplifier and optical communication system provided with the optical amplifier
FUJITSU LTD117 citations98
US6204945B1Mar 20, 2001
Signal light outputting apparatus and optical transmission system having signal light outputting apparatus
FUJITSU LTD56 citations95
US5729372AMar 17, 1998
Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system
FUJITSU LTD27 citations92
US5539566AJul 23, 1996
Optical transmission method and apparatus and optical amplification method and apparatus for optical communication system
FUJITSU LTD20 citations92
US5546213AAug 13, 1996
Optical amplifier and optical communication system provided with the optical amplifier
FUJITSU LTD16 citations81
US5535050AJul 9, 1996
Optical amplifier and optical communication system with optical amplifier using pumping light beam
FUJITSU LTD10 citations81
US5510931AApr 23, 1996
Optical amplifier and optical communication system with optical amplifier using pumping right beam
FUJITSU LTD13 citations81
US5838476ANov 17, 1998
Input monitoring system for optical amplifying repeater
FUJITSU LTD15 citations73
US5526163AJun 11, 1996
Optical amplifier and optical communication system with optical amplifier using pumping light beam
FUJITSU LTD6 citations73
US5521737AMay 28, 1996
Optical amplifier and optical communication system with optical amplifier using pumping light beam
FUJITSU LTD7 citations73
US7092149B1Aug 15, 2006
Input monitoring system for optical amplifying repeater
FUJITSU LTD2 citations62
US6480658B1Nov 12, 2002
Optical fiber transmission line for wavelength division multiplexing transmission system
FUJITSU LTD3 citations62