High spatial-density, cladding-pumped 6-mode 7-core fiber amplifier for C-band operation
S. Jain, Taiji Sakamoto, Yongmin Jung, Ian Davidson, P. Barua, J. R. Hayes, Kohki Shibahara, Takayuki Mizuno, Y. Miyamoto, Kazuhide Nakajima, David J. Richardson
Abstract
We 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.
Topics & Concepts
OpticsMaterials scienceCladding (metalworking)Multi-mode optical fiberAmplifierDispersion-shifted fiberDouble-clad fiberFiber laserPolarization-maintaining optical fiberLaser diodeOptical fiberPlastic optical fiberOptoelectronicsFiber optic sensorDiodePhysicsMetallurgyCMOSOptical Network TechnologiesPhotonic Crystal and Fiber OpticsSemiconductor Lasers and Optical Devices