An All-Fiber Gas Raman Light Source Based on a Hydrogen-Filled Hollow-Core Photonic Crystal Fiber Pumped with a Q-Switched Fiber Laser

被引：2

作者：

Chen Xiao-Dong ^{[1
,2
]}

Mao Qing-He ^{[1
]}

Sun Qing ^{[1
]}

Zhao Jia-Sheng ^{[1
]}

Li Pan ^{[1
]}

Feng Su-Juan ^{[1
]}

机构：

[1] Chinese Acad Sci, Anhui Prov Key Lab Photon Devices & Mat, Anhui Inst Opt & Fine Mech, Hefei 230031, Peoples R China

[2] Inst Elect Engn, State Key Lab Pulsed Power Laser Technol, Optoelect Dept, Hefei 230037, Peoples R China

来源：

CHINESE PHYSICS LETTERS | 2011年 / 28卷 / 07期

关键词：

SCATTERING; H-2;

D O I：

10.1088/0256-307X/28/7/074201

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A gas Raman light source based on a H(2)-filled hollow-core photonic-crystal-fiber cell with a Q-switched fiber laser followed by a fiber amplifier as the Raman pump source is demonstrated. The Stokes frequency-shift lasing line is observed at 1135.7 nm with the Q-switched pump pulses at 1064.7 nm. Our experimental results show that the generated Stokes pulse is much narrower than the pump pulse, and the generated Stokes pulse duration is increased with the single pulse energy for the same duration pump pulses. For the 125 ns pump pulses with a repetition rate of 5 kHz, the Raman threshold pump energy and the conversion efficiency at the Raman threshold are 2.13 mu J and 9.82%. Moreover, by choosing narrower pump pulses, the Raman threshold pump energy may be reduced and the conversion efficiency may be improved.

引用

页数：4

共 16 条

[1] Ultrahigh efficiency laser wavelength conversion in a gas-filled hollow core photonic crystal fiber by pure stimulated rotational Raman scattering in molecular hydrogen [J].