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公开(公告)号：US20210184419A1
公开(公告)日：2021-06-17
申请号：US17187147
申请日：2021-02-26
发明人： Haruki OGOSHI , Masahito MORIMOTO
IPC分类号： H01S3/094 , H01S3/067 , H01S3/0915 , H01S3/23 , H01S3/30
摘要： A light source for Raman amplification to Raman-amplify signal light includes: plural incoherent light sources that output incoherent light; plural pumping light sources that output second-order pumping light; an optical fiber for Raman amplification to Raman-amplify the incoherent light with the second-order pumping light, and outputs the amplified incoherent light; and an output unit connected to the optical transmission fiber, receiving the amplified incoherent light, and outputting the amplified incoherent light as first-order pumping light having a wavelength that Raman-amplifies the signal light to the optical transmission fiber.
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公开(公告)号：US20180123311A1
公开(公告)日：2018-05-03
申请号：US15810707
申请日：2017-11-13
发明人： Haruki OGOSHI , Masahito MORIMOTO
IPC分类号： H01S3/094 , H01S3/30 , H01S3/0915 , H01S3/23
CPC分类号： H01S3/094046 , H01S3/06754 , H01S3/0915 , H01S3/0933 , H01S3/094003 , H01S3/094011 , H01S3/094038 , H01S3/094096 , H01S3/09415 , H01S3/2316 , H01S3/302 , H01S2301/02
摘要： A light source for Raman amplification to Raman-amplify signal light includes: plural incoherent light sources that output incoherent light; plural pumping light sources that output second-order pumping light; an optical fiber for Raman amplification to Raman-amplify the incoherent light with the second-order pumping light, and outputs the amplified incoherent light; and an output unit connected to the optical transmission fiber, receiving the amplified incoherent light, and outputting the amplified incoherent light as first-order pumping light having a wavelength that Raman-amplifies the signal light to the optical transmission fiber.
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3.发明公开公开(公告)号：US20240332884A1
公开(公告)日：2024-10-03
申请号：US18732956
申请日：2024-06-04
发明人： Haruki OGOSHI , Junji YOSHIDA , Yusuke INABA , Tatsuya KIMOTO , Masaki FUNABASHI , Seiji ICHINO , Naoya HOJO , Shigehiro TAKASAKA , Ryuichi SUGIZAKI , Nitidet THUDSALINGKARNSAKUL , Sanguan ANANTATHANASARN
IPC分类号： H01S3/10 , H01S3/067 , H01S3/0933 , H01S3/30
CPC分类号： H01S3/10084 , H01S3/06754 , H01S3/0933 , H01S3/302 , H01S2301/02
摘要： A light source includes: a seed light source configured to output incoherent seed light having a predetermined bandwidth; and a booster amplifier that is a semiconductor optical amplifier configured to optically amplify the seed light entered through a first end facet and output the amplified light through a second end facet. The booster amplifier has nL being set, which is a product of a refractive index n and a chip length L, so as to simultaneously suppress relative intensity noise (RIN) and ripple in the amplified light.
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4.发明公开公开(公告)号：US20230231629A1
公开(公告)日：2023-07-20
申请号：US18180512
申请日：2023-03-08
发明人： Haruki OGOSHI , Junji YOSHIDA , Yusuke INABA , Tatsuya KIMOTO , Masaki FUNABASHI , Seiji ICHINO , Naoya HOJO , Shigehiro TAKASAKA , Ryuichi SUGIZAKI , Nitidet THUDSALINGKARNSAKUL , Sanguan ANANTATHANASARN
IPC分类号： H04B10/291 , H01S5/50
CPC分类号： H04B10/2916 , H01S5/5027 , H04B10/25
摘要： A light source includes: a seed light source configured to output incoherent seed light with a predetermined bandwidth; and a booster amplifier that is a semiconductor optical amplifier configured to optically amplify the seed light input from a first facet, and output the amplified seed light as amplified light from a second facet, wherein the first facet and the second facet of the booster amplifier are subjected to a reflection reduction treatment, the booster amplifier is configured to operate in a gain saturated state, and relative intensity noise (RIN) and ripple are simultaneously suppressed in the amplified light.
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