Inventor
OOHASHI HIROMI
JP5 patents
Patents
5 patentsUS7961769B2Jun 14, 2011
Wavelength tunable semiconductor laser device, controller for the same, and control method for the same
NIPPON TELEGRAPH & TELEPHONE6 citations61
US7221500B2May 22, 2007
Optical amplifier
NIPPON TELEGRAPH & TELEPHONE3 citations59
US7088501B2Aug 8, 2006
Optical amplifier
NIPPON TELEGRAPH & TELEPHONE2 citations59
US7262905B2Aug 28, 2007
Optical amplifier
NIPPON TELEGRAPH & TELEPHONE0 citations48
US6728025B2Apr 27, 2004
Semiconductor optical amplifier characteristic evaluation method and apparatus
NIPPON TELEGRAPH & TELEPHONE0 citations47