Chin. Phys. B ›› 2013, Vol. 22 ›› Issue (1): 14208-014208.doi: 10.1088/1674-1056/22/1/014208
• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇 下一篇
冯亭, 延凤平, 李琦, 彭万敬, 冯素春, 谭思宇, 温晓东
Feng Ting (冯亭), Yan Feng-Ping (延凤平), Li Qi (李琦), Peng Wan-Jing (彭万敬), Feng Su-Chun (冯素春), Tan Si-Yu (谭思宇), Wen Xiao-Dong (温晓东)
摘要: We present a stable linear-cavity single longitudinal mode (SLM) erbium-doped silica fiber laser. It consists of four fiber Bragg gratings (FBGs) directly written in a section of photosensitive erbium-doped fiber (EDF) to form asymmetric three-cavity structure. The stable SLM operation at a wavelength of 1545.112 nm with a 3-dB bandwidth of 0.012 nm and an optical signal-to-noise ratio (OSNR) of about 60 dB is verified experimentally. In laboratory condition, the performance of power fluctuation of less than 0.05 dB observed from the power meter for 6 h and wavelength variation of less than 0.01 nm obtained from the optical spectrum analyzer (OSA) for about 1.5 h are demonstrated. The gain fiber length is no longer limited to only several centimeters for SLM operation because of the excellent mode-selecting ability of the asymmetric three-cavity structure. The proposed scheme provides a simple and cost-effective approach to realizing a stable SLM fiber laser.
中图分类号: (Fiber lasers)