Chinese Optics Letters, 2013, 11 (5): 051403, Published Online: Apr. 16, 2013
Ultra-broadband optical spectrum generation from a stretched pulse fiber laser utilizing zero-dispersion fiber Download: 874次
140.3500 Lasers, erbium 140.3510 Lasers, fiber 140.4050 Mode-locked lasers 320.7090 Ultrafast lasers
Abstract
We investigate the effects of a piece of zero-dispersion fiber (ZDF) on the pulse dynamics of a passively mode-locked fiber laser operating in the stretched-pulse regime. Numerical simulation suggests that the proper location and length of ZDF facilitate spectrum broadening and pulse shortening in fiber lasers while maintaining constant net cavity dispersion. A nonlinear polarization evolution mode-locked Er-doped fiber laser with a dispersion map is built based on the simulation. Larger optical spectrum broadening is obtained by inserting a longer ZDF after the active fiber during single-pulse operation, which well agrees with the simulation.
Cheng Zhang, Lu Chai, Youjian Song, Minglie Hu, Chingyue Wang. Ultra-broadband optical spectrum generation from a stretched pulse fiber laser utilizing zero-dispersion fiber[J]. Chinese Optics Letters, 2013, 11(5): 051403.