Title :
Pulse-amplitude equalization in a rational harmonic mode-locked fiber laser using nonlinear modulation
Author :
Feng, Xinhuan ; Liu, Yange ; Yuan, Shuzhong ; Kai, Guiyun ; Zhang, Weigang ; Dong, Xiaoyi
Author_Institution :
Inst. of Modern Opt., Nankai Univ., Tianjin, China
Abstract :
In this letter, a simple technique for the pulse-amplitude equalization of high repetition rate pulses generated from a rational harmonic mode-locked fiber ring laser was demonstrated. The principle is based on nonlinear modulation of the modulator and a theoretical explanation based on time-domain analysis was given. Amplitude equalized short pulses up to the seventh rational harmonic mode-locking were obtained with an optimum bias level and modulation depth of the modulator, which agrees well with the simulation result and demonstrates the efficiency of this method.
Keywords :
electro-optical modulation; equalisers; fibre lasers; intensity modulation; laser mode locking; nonlinear optics; optical pulse generation; time-domain analysis; high repetition rate pulses; nonlinear modulation; pulse-amplitude equalization; rational harmonic mode-locked fiber laser; time division multiplexing; time-domain analysis; Amplitude modulation; Fiber lasers; Laser mode locking; Laser theory; Optical harmonic generation; Optical pulse generation; Optical pulses; Pulse modulation; Ring lasers; Time domain analysis;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.831062
