Dual-wavelength narrow-linewidth fiber laser based on F-P fiber ring filter

作者：Wei Fangfang^*; Yang Xiufeng; Tong Zhengrong; Cao Ye; Pan Honggang

来源：Optik, 2012, 123(11): 1026-1029.

DOI：10.1016/j.ijleo.2011.07.024

• Laser technique
• Dual-wavelength laser
• Fiber F-P filter
• Narrow-linewidth

A dual-wavelength fiber laser with a narrow-linewidth, based on a P-F fiber filter has been proposed. Polarization-maintaining fiber Bragg grating (PM-FBG) and a F-P fiber filter are introduced based on the traditional fiber laser. PM-FBG is used as the wavelength selection device. The fiber F-P filter consists of two optical couplers and a section of un-pumped erbium-doped fiber (EDF). Due to the delay of cavity and the loss generated by the EDF, the filter has comb spectral response. The incorporation of the fiber F-P filter leads to the suppression of undesirable modes. At the room temperature, under 980 nm LD pumped, the maximum output of the two wavelengths is respectively -2.259 dBm and 0.568 dBm, with the 3-dB bandwidth separately 0.1 nm and 0.14 nm, realizing the narrow linewidth and dual-wavelength output.

• 出版日期2012
• 单位天津理工大学