Title :
A novel method for passively mode-locked fiber laser to enhance sidebands suppression ratio by using lumped-gain amplification
Author :
Dai, Zhiyong ; Liu, Yongzhi
Author_Institution :
Sch. of Opto-Electron. Inf., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A novel method to design a passively mode-locked fiber laser with high sidebands suppression ratio by using lumped-gain amplifier as the intra-cavity amplifying units is first proposed and experimentally demonstrated in this paper. The theoretical and experimental results show that the proposed fiber laser can effectively reduce the periodic energy fluctuation of intra-cavity and offer a very good suppression to the spectral sidebands. With this method, a passively mode-locked Er3+-doped fiber laser with spectral sidebands suppression ratio of more than 20dB is obtained.
Keywords :
erbium; fibre lasers; Er; intracavity amplifying units; lumped-gain amplification; mode-locked fiber laser; periodic energy fluctuation; sideband suppression ratio enhancement; Fiber lasers; Laser mode locking; Laser theory; Optical fiber amplifiers; Optical fiber communication; Optical fiber couplers; Optical fiber polarization; Optical fiber sensors; Optical fiber theory; Pulse amplifiers; fiber laser; lumped-gain amplification; mode-locked; ultra-short pulses;
Conference_Titel :
Communication Systems, 2008. ICCS 2008. 11th IEEE Singapore International Conference on
Conference_Location :
Guangzhou
Print_ISBN :
978-1-4244-2423-8
Electronic_ISBN :
978-1-4244-2424-5
DOI :
10.1109/ICCS.2008.4737382
