Inventor
MISAIZU SETSUO
JP14 patents
Patents
14 patentsUS5900959AMay 4, 1999
Optical transmitter, optical communication system and optical communication method
FUJITSU LTD70 citations95
US6229833B1May 8, 2001
Laser diode protecting circuit and laser driving current control circuit
FUJITSU LTD53 citations92
US6097746AAug 1, 2000
Laser diode protecting circuit
FUJITSU LTD26 citations92
US5706117AJan 6, 1998
Drive circuit for electro-absorption optical modulator and optical transmitter including the optical modulator
FUJITSU LTD52 citations92
US6707024B2Mar 16, 2004
Bias circuit for a photodetector, and an optical receiver
FUJITSU LTD42 citations91
US5646763AJul 8, 1997
Optical transmitter and laser diode module for use in the optical transmitter
FUJITSU LTD40 citations91
US5625181AApr 29, 1997
Light-receipt system with current bias circuit and pre-amplifier for use in optical digital communication
FUJITSU LTD25 citations90
US5636048AJun 3, 1997
Equalizing amplifier, receiver using the same and preamplifier
FUJITSU LTD34 citations89
US5499258AMar 12, 1996
Automatic temperature control circuit of laser diode and electric/optical signal converting unit using the same
FUJITSU LTD20 citations86
US7382987B2Jun 3, 2008
Identification level control method and optical receiver
FUJITSU LTD10 citations84
US6501774B2Dec 31, 2002
Optical transmission apparatus for multiple wavelengths and optical transmission wavelength control method
FUJITSU LTD18 citations83
US5557445ASep 17, 1996
Optical signal transmitter having an apc circuit with automatic bias current control
FUJITSU LTD7 citations73
US7257332B2Aug 14, 2007
Optical transmitter and its control method
FUJITSU LTD7 citations69
US6807245B2Oct 19, 2004
PLO device
FUJITSU LTD4 citations62