We investigate the relationship between timing jitter and cavity loss of a passively mode-locked fiber ring laser with a carbon nanotube as a saturable absorber. It is the first time that we experimentally demonstrated the reduction of timing jitter by properly increasing laser cavity loss. The lowest timing jitter is achieved when the cavity loss is optimized. Theoretical analysis is in agreement with the experimental observations on the effect of cavity loss for the reduction of timing jitter. Moreover, it is experimentally shown that, at an optimal value of cavity loss, the timing jitter is reduced significantly by 24%, while the relative intensity noise increased by 4% only.
© 2010 Optical Society of America
Lasers and Laser Optics
Original Manuscript: November 18, 2009
Revised Manuscript: February 24, 2010
Manuscript Accepted: February 25, 2010
Published: March 31, 2010
Kan Wu, Jia Haur Wong, Ping Shum, Desmond Rodney Chin Siong Lim, Vincent Kwok Huei Wong, Kenneth Eng Kian Lee, Jianping Chen, and E. D. Obraztsova, "Timing-jitter reduction of passively mode-locked fiber laser with a carbon nanotube saturable absorber by optimization of cavity loss," Opt. Lett. 35, 1085-1087 (2010)