Luo Zhengqian, Zhong Wen-De, Tang Ming, Cai Zhiping, Ye Chenchun, Xiao Xiaosheng
Department of Electronic Engineering, Institute of Optoelectronic Technology, Xiamen University, Xiamen, China.
Opt Lett. 2009 Jan 15;34(2):214-6. doi: 10.1364/ol.34.000214.
A cost-effective fiber optical parametric amplifier (FOPA) based on the laser intracavity pump technique has been proposed and demonstrated experimentally. The parametric process is realized by inserting a 1 km highly nonlinear dispersion-shifted fiber (HNL-DSF) into a fiber ring-laser cavity that consists of a high-power erbium-doped fiber (EDF) amplifier and two highly reflective fiber Bragg gratings. Compared with the conventional parametric pump schemes, the proposed pumping technique is free from a tunable semiconductor laser as the pump source and also the pump phase modulation. When the oscillating power of 530 mW in the EDF laser cavity is achieved to pump the HNL-DSF, a peak parametric gain of 27.5 dB and a net gain over 45 nm are obtained. Moreover, a widely tunable fiber-optic parametric oscillator is further developed using the FOPA as a gain medium.
基于激光腔内泵浦技术的一种经济高效的光纤参量放大器（FOPA）已被提出并通过实验验证。通过将一段1 km的高非线性色散位移光纤（HNL-DSF）插入由高功率掺铒光纤（EDF）放大器和两个高反射率光纤布拉格光栅组成的光纤环形激光腔中，实现了参量过程。与传统的参量泵浦方案相比，所提出的泵浦技术无需可调谐半导体激光器作为泵浦源，也无需泵浦相位调制。当在EDF激光腔中实现530 mW的振荡功率来泵浦HNL-DSF时，获得了27.5 dB的峰值参量增益和超过45 nm的净增益。此外，以FOPA作为增益介质进一步开发了一种宽可调谐光纤参量振荡器。
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