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公开(公告)号：US20130286468A1
公开(公告)日：2013-10-31
申请号：US13859133
申请日：2013-04-09
发明人： Youichi AKASAKA , Yoshihiro Emori , Shu Namiki
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916
摘要： A Raman amplifier using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, to output pumping lights having different central wavelengths, an interval between adjacent central wavelengths greater than 6 nm and smaller than 35 nm. An optical repeater is adapted to compensate loss in an optical fibre transmission line by the Raman amplifier. A Raman amplification method wherein the shorter the central wavelength of the pumping light, the higher light power of the pumping light. In the Raman amplifier, a certain pumping 1 wavelength being a first channel, and second to n-th channels are arranged with an interval of about 1 THz toward a longer wavelength side, pumping lights having wavelengths corresponding to the first to n-th channels are multiplexed, and pumping light having a wavelength spaced apart from the n-th channel by 2 THz or more toward the longer wavelength side is combined with the multiplexed light, thereby forming the pumping light source.
摘要翻译： 使用Fabry-Perot，DFB或DBR型或MOPA的半导体激光器的拉曼放大器输出具有不同中心波长的泵浦光，相邻中心波长之间的间隔大于6nm且小于35nm。 光中继器适于补偿拉曼放大器在光纤传输线路中的损耗。 拉曼放大法，其中泵浦光的中心波长越短，泵浦光的光功率越高。 在拉曼放大器中，一定的泵浦波长为第一通道，第二至第n通道以较长波长侧的大约1THz的间隔排列，具有对应于第一至第n通道的波长的泵浦光 并且将与第n通道间隔开的波长朝向较长波长侧的2Hz以上的泵浦光与复用光结合，从而形成泵浦光源。
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公开(公告)号：US09281654B2
公开(公告)日：2016-03-08
申请号：US13859133
申请日：2013-04-09
发明人： Youichi Akasaka , Yoshihiro Emori , Shu Namiki
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/06758 , H01S3/0912 , H01S3/094011 , H01S3/094015 , H01S3/094096 , H01S3/10007 , H01S3/10015 , H01S3/2375 , H01S3/2383 , H01S2301/04 , H04B10/2916
摘要： A Raman amplifier using semiconductor lasers of Fabry-Perot, DFB, or DBR type or MOPAs, to output pumping lights having different central wavelengths, an interval between adjacent central wavelengths greater than 6 nm and smaller than 35 nm. An optical repeater is adapted to compensate loss in an optical fiber transmission line by the Raman amplifier. A Raman amplification method wherein the shorter the central wavelength of the pumping light, the higher light power of the pumping light. In the Raman amplifier, a certain pumping 1 wavelength being a first channel, and second to n-th channels are arranged with an interval of about 1 THz toward a longer wavelength side, pumping lights having wavelengths corresponding to the first to n-th channels are multiplexed, and pumping light having a wavelength spaced apart from the n-th channel by 2 THz or more toward the longer wavelength side is combined with the multiplexed light, thereby forming the pumping light source.
摘要翻译： 使用Fabry-Perot，DFB或DBR型或MOPA的半导体激光器的拉曼放大器输出具有不同中心波长的泵浦光，相邻中心波长之间的间隔大于6nm且小于35nm。 光中继器适于补偿拉曼放大器在光纤传输线路中的损耗。 拉曼放大法，其中泵浦光的中心波长越短，泵浦光的光功率越高。 在拉曼放大器中，一定的泵浦波长为第一通道，第二至第n通道以较长波长侧的大约1THz的间隔排列，具有对应于第一至第n通道的波长的泵浦光 并且将与第n通道间隔开的波长朝向较长波长侧的2Hz以上的泵浦光与复用光结合，从而形成泵浦光源。
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公开(公告)号：US20020176153A1
公开(公告)日：2002-11-28
申请号：US09654974
申请日：2000-09-05
发明人： Shunichi Matsushita , Shu Namiki , Yoshihiro Emori
IPC分类号： H01S003/00
CPC分类号： H01S3/302 , H01S3/094003 , H01S3/094073 , H01S3/094096 , H01S3/2375 , H01S5/146
摘要： Abstract of DisclosureAn optical signal amplifier comprises a light source, a depolarizer, and a gain medium that transfers energy from a pump beam output from the depolarizer to the optical signal. The depolarizer may comprise one or more birefringent optical fibers which support two polarization modes, a fast mode and a slow mode. The light propagates in the fast mode at a higher velocity than the light propagates in the slow mode so as to impart phase delay as the light propagates in the birefringent optical fibers, thereby at least partially depolarizing the beam.
摘要翻译： 一种光信号放大器包括光源，去极化器和将从去偏振器输出的泵浦光束的能量传递到光信号的增益介质。 去偏振器可以包括支持两种偏振模式的一个或多个双折射光纤，即快速模式和慢速模式。 光在快速模式下以比在慢速模式中传播的光速更高的速度传播，以便当光在双折射光纤中传播时给予相位延迟，从而至少部分地使光束去极化。
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