US 11,909,168 B2
Self-adaptive wave band amplification method and amplifier
Zhenyu Yu, Wuhan (CN); Qinlian Bu, Wuhan (CN); Chengpeng Fu, Wuhan (CN); Xiao Cai, Wuhan (CN); Fuxing Deng, Wuhan (CN); and Rui Lei, Wuhan (CN)
Assigned to Accelink Technologies Co., Ltd., Wuhan (CN)
Appl. No. 16/624,557
Filed by Accelink Technologies Co., Ltd., Wuhan (CN)
PCT Filed Dec. 25, 2017, PCT No. PCT/CN2017/118165
§ 371(c)(1), (2) Date Aug. 24, 2020,
PCT Pub. No. WO2018/233260, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 201710480699.X (CN), filed on Jun. 22, 2017.
Prior Publication US 2021/0021096 A1, Jan. 21, 2021
Int. Cl. H01S 3/30 (2006.01); H01S 3/10 (2006.01); H01S 3/067 (2006.01); H01S 3/08 (2023.01); H04B 10/25 (2013.01)
CPC H01S 3/30 (2013.01) [H01S 3/08013 (2013.01); H01S 3/10015 (2013.01); H04B 10/25 (2013.01); H01S 3/0677 (2013.01); H01S 3/06766 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A self-adaptive wave band amplification method, characterized in comprising:
a light splitting step for detecting C band detection light and L band detection light in an in-band signal; and
a scheduling step for enabling a slave Raman amplifying unit to participate in amplification after the L band detection light is detected,
wherein the method further comprises a wave combining step for performing a wave combination/splitting by using two optical wavelength division multiplexers after the slave Raman unit injects its pumping light into a master Raman unit, the wave combination comprising:
injecting pump light from the master Raman amplifying unit into a transmission fiber after wave combining/splitting once, and injecting pump light from the slave Raman unit into the transmission fiber after wave combining/splitting twice; or
injecting the pump light from the slave Raman unit into the transmission fiber after wave combining/splitting once, and injecting the pump light from the master Raman unit into the transmission fiber after wave combining/splitting twice; or
performing a first wave combination for the pump light from the master and slave Raman units and then a second wave combination/split with signal light.