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公开(公告)号：US10897117B1
公开(公告)日：2021-01-19
申请号：US15974808
申请日：2018-05-09
摘要： A multi-path optical amplification system includes a modulated light source emitting λ1 modulated light, a first signal splitter coupled to receive the modulated λ1 light providing a first λ1 modulated light signal and second λ1 modulated light signal. A first optical amplifier is for receiving the first λ1 modulated light signal and generating a first amplified output signal, and a second optical amplifier is for receiving the second λ1 modulated light signal and generating a second amplified output signal. A first collimator assembly is coupled to receive the first amplified output signal and provide a first output beam having a first beam divergence (D1) and a second collimator assembly is coupled to receive the second amplified output signal and provide a second output beam having a second beam divergence (D2).
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公开(公告)号：US09762020B1
公开(公告)日：2017-09-12
申请号：US15406255
申请日：2017-01-13
CPC分类号： H01S3/094011 , H01S3/0064 , H01S3/06712 , H01S3/06733 , H01S3/06766 , H01S3/094015 , H01S3/09415 , H01S3/1608
摘要： A bi-directionally pumped PM fiber amplifier includes an amplifier input coupled to a first WDM coupler and a second WDM coupler providing an amplifier output. A doped fiber is between the WDM couplers. A first pump light source emitting at a first wavelength along a first polarization axis is coupled to the WDM coupler through a polarization beam combiner/splitter and a polarization rotator is for downstream pumping of the doped fiber with rotated light relative to the first polarization. The fiber is upstream pumped with light having the first polarization using a second pump light source emitting at the first wavelength/first polarization, by an output of an optical power splitter with its input coupled to the first pump light source, or by a fiber-coupled rotator mirror coupled to the second WDM coupler.
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