An Easily Switchable Dual-Wavelength Passively Mode-Locked Erbium Fiber Laser

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2014,（1）
• 页码范围: 84-87
• 页数: 4页
• 语种: 英文
• DOI: 10.1088/0256-307X/31/1/014204

摘要

A simple scheme of switchable dual-wavelength passively mode-locked fiber laser is demonstrated.The laser can be fiexibly switched among different mode-locked states simply by tuning the cavity loss while keeping all the other cavity parameters fixed.As the cavity loss increases,the mode-locked fiber laser operates at the long-wavelength,dual-wavelength,and short-wavelength states,successively.In addition,these states can be conveniently switched without losing the mode-locked operation and the switching process is reversible as the cavity loss decreases.The mechanism is qualitatively explained by the balance between the fiber gain and the cavity loss.