1
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, April 25, 2000: US06055092 (64 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


2
Yasushi Sugaya, Susumu Kinoshita: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, November 30, 1999: US05995274 (30 worldwide citation)

An optical amplifying apparatus which includes an optical amplifier, an optical attenuator and a controller. The optical amplifier amplifies a light signal having a variable number of channels. The optical attenuator passes the amplified light signal and has a variable light transmissivity. Prior to ...


3
Kazuhisa Kaede: Light amplifier for multi-wavelength signals. NEC Corporation, Sughrue Mion Zinn Macpeak & Seas, July 27, 1993: US05231529 (26 worldwide citation)

A multi-wavelength light amplifier comprises a light amplifier for amplifying a wavelength division multiplex signal with accompanying generation of spontaneous emission. An optical coupler is provided for coupling light from the light amplifier to a wavelength filter, such as Fabry-Perot filter. Th ...


4
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, April 9, 2002: US06369938 (20 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


5
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, November 12, 2002: US06480329 (19 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


6
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, June 4, 2002: US06400499 (14 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


7
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, May 29, 2007: US07224517 (9 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


8
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, January 6, 2009: US07474459 (7 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first-light amplifying optical fiber amplifying a light input, a second-stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


9
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, April 15, 2014: US08699126 (1 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...


10
Yasushi Sugaya, Miki Takeda, Susumu Kinoshita, Terumi Chikama: Multi-wavelength light amplifier. Fujitsu, Staas & Halsey, November 27, 2012: US08320040 (1 worldwide citation)

A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, ...