Abstract

We report effcient cascaded Raman generation and signal amplification at 1.3.mu.m achieved in a ring resonator constructed solely from fiber components, i.e. fusion WDM couplers. Low-loss single-mode fiber with moderate <tex>$GeO_2$</tex> content (18 mole %) is used as an active medium and pumped by a Nd:YAG laser at 1.064.mu.m. In a resonant cascaded geometry, this generates the third Stokes line at 1.24.mu.m, which acts as a pump for signal wavelength around 1.3.mu.m. A DFB laser operating at 1.315.mu.m is used to provide an input signal. An output signal powers up to 20 dBm (100 mW) with a 28 dB Raman gain are attained, where the Nd:YAG pump power is 3.4 W. It is also shown experimentally that it is important to use optical filters to suppress feedback from the resonator, permitting high Raman gain and good signal quality.

© 1997 Optical Society of Korea

Continuous-wave Raman oscillation for a Nd³⁺:YAG intracavity fiber laser

Masataka Nakazawa, Masamitsu Tokuda, and Naoya Uchida
J. Opt. Soc. Am. B 1(1) 86-90 (1984)

Compact all-fiber 2.1-2.7 μm tunable Raman soliton source based on germania-core fiber

Yanhong Li, Tuanjie Du, Bin Xu, Huiying Xu, Zhiping Cai, Valery M. Mashinsky, and Zhengqian Luo
Opt. Express 27(20) 28544-28550 (2019)

Cascaded Raman amplifiers based on fluorotellurite fibers

Yadong Jiao, Fanchao Meng, Zhixu Jia, Qi Guo, Yongsen Yu, Chuantao Zheng, Yasutake Ohishi, Weiping Qin, and Guanshi Qin
Opt. Mater. Express 12(6) 2309-2317 (2022)

1.3 µm Raman-bismuth fiber amplifier pumped by semiconductor disk laser

A. Chamorovskiy, J. Rautiainen, A. Rantamäki, K. M. Golant, and O. G. Okhotnikov
Opt. Express 19(7) 6433-6438 (2011)

Cascaded-cladding-pumped cascaded Raman fiber amplifier

Huawei Jiang, Lei Zhang, and Yan Feng
Opt. Express 23(11) 13947-13952 (2015)