Observation of stable bound soliton with dual-wavelength in a passively mode-locked Er-doped fiber laser

• 来源期刊: 中国物理B（英文版）
• 关键词: mode-locking Sagnac interference dual-wavelength soliton bound state
• 年，卷（期）: 2017,（7）
• 页码范围: 144-148
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/7/074212

摘要

A phase-locked bound state soliton with dual-wavelength is observed experimentally in a passively mode-locked Erdoped fiber (EDF) laser with a fiber loop mirror (FLM).The pulse duration of the soliton is 15 ps and the peak-to-peak separation is 125 ps.The repetition rate of the pulse sequence is 3.47 MHz.The output power is 11.8 mW at the pump power of 128 mW,corresponding to the pulse energy of 1.52 rJ.The FLM with a polarization controller can produce a comb spectrum,which acts as a filter.By adjusting the polarization controller or varying the pump power,the central wavelength of the comb spectrum can be tuned.When it combines with the reflective spectrum of the fiber Bragg grating,the total spectrum of the cavity can be cleaved into two parts,then the bound state soliton with dual-wavelength at 1549.7 nm and 1550.4 nm is obtained.