低噪声、单频、单偏振布里渊/掺铒光纤激光器。

Low-noise, single-frequency, single-polarization Brillouin/erbium fiber laser.

机构信息

College of Optoelectronic Science and Engineering, National University of Defense Technology, Changsha, Hunan, China.

出版信息

Opt Lett. 2013 Jun 15;38(12):2041-3. doi: 10.1364/OL.38.002041.

DOI:10.1364/OL.38.002041

Abstract

We demonstrate a low-noise Brillouin/erbium fiber laser (BEFL), which uses only 1.5 m polarization-maintaining erbium-doped fiber as both the Brillouin and erbium gain media. This BEFL presents a phase noise of -125 dB/Hz(1/2) at 1 kHz frequency, at 2 mW Brillouin pump (~~3 MHz linewidth) power and 200 mW 980 nm pump power. The polarization extinction ratio of the laser output light is 31 dB. Stable (~~2 h) single-mode operation is observed. This BEFL presents potential applications in distributed Brillouin fiber sensors, inteferometric fiber sensors, and optical communications.

摘要

我们演示了一种低噪声布里渊/掺铒光纤激光器（BEFL），它仅使用 1.5 m 的保偏掺铒光纤作为布里渊和掺铒增益介质。该 BEFL 在 1 kHz 频率下，2 mW 的布里渊泵浦功率（~~3 MHz 线宽）和 200 mW 的 980nm 泵浦功率下，呈现出-125 dB/Hz(1/2)的相位噪声。激光输出光的偏振消光比为 31 dB。观察到稳定（~~2 小时）的单模运行。这种 BEFL 在分布式布里渊光纤传感器、干涉式光纤传感器和光通信中具有潜在的应用。