High spatial-density, cladding-pumped 6-mode 7-core fiber amplifier for C-band operation
2021; Optica Publishing Group; Volume: 29; Issue: 19 Linguagem: Inglês
10.1364/oe.428142
ISSN1094-4087
AutoresS. Jain, Taiji Sakamoto, Yongmin Jung, Ian Davidson, P. Barua, J. R. Hayes, Kohki Shibahara, Takayuki Mizuno, Y. Miyamoto, Kazuhide Nakajima, David J. Richardson,
Tópico(s)Semiconductor Lasers and Optical Devices
ResumoWe present a C-band 6-mode 7-core fiber amplifier in an all-fiberized cladding-pumped configuration for space division multiplexed transmission supporting a record 42 spatial channels. With optimized fiber components (e.g. passively cooled pump laser diode, pump coupler, pump stripper), high power multimode pump light is coupled to the active fiber without any noticeable thermal degradation and an average gain of 18 dB and noise figure of 5.4 dB are obtained with an average differential modal gain of 3.4 dB.
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