摘要
A simple scheme of switchable dual-wavelength passively mode-locked fiber laser is demonstrated. The laser can be flexibly 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.
A simple scheme of switchable dual-wavelength passively mode-locked fiber laser is demonstrated. The laser can be flexibly 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.
基金
Supported by the China Postdoctoral Science Foundation （2013M542169）, the National Basic High-Technology Research and Development Program of China （2012AA041203, 2011AA030203）, the National Natural Science Foundation of China （11174085, U0934001, and 60977060）, the Guangdong Province and Hong Kong Invite Public Bidding Program （TC10BH07-1）, the Sci- ence and Technology Project of Guangdong （cgzhzd0903, 2011B090400055）, the Natural Science Fund of Guangdong Province （S2011030001349）, the Fundamental Research Funds for the Central Universities （2012ZZ0002, 2012ZB0002）, and the Open Re- search Fund of State Key Laboratory of Transient Optics and Photonics, Chinese Academy of Sciences （SKLST201101）.
