High repetition rate passively mode-locked fiber laser with a composite cavity structure for repetition rate control

Sha Tao; Lixin Xu; Guoliang Chen; Chun Gu; Xianming Zhang; Hongyan Song; Xiaoling Meng; Hai Ming

doi:10.1117/12.2034155

23 December 2013 High repetition rate passively mode-locked fiber laser with a composite cavity structure for repetition rate control

Sha Tao, Lixin Xu, Guoliang Chen, Chun Gu, Xianming Zhang, Hongyan Song, Xiaoling Meng, Hai Ming

Author Affiliations +

Proceedings Volume 9043, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing; 904308 (2013) https://doi.org/10.1117/12.2034155
Event: International Conference on Optical Instruments and Technology (OIT2013), 2013, Beijing, China

Abstract

We have demonstrated a passively mode-locked fiber laser with a composite cavity structure for repetition rate control. An optical delay line is used to control the length so that the lengths of the main cavity and the sub-ring cavity are accurately co-prime. Using this method we have obtained 46th harmonic pulses with a fundamental repetition of 17.39MHz. The fundamental mode-locking is substantially suppressed. The SNR of rf spectrum is higher than 45 dB. Stable 800MHz repetition rate mode-locked pulses in duration of 14.27 ps are generated. The detuning phenomenon appears when two cavity’s lengths are not matched. A larger pump power is required to maintain the oscillation.

Citation Download Citation

Sha Tao, Lixin Xu, Guoliang Chen, Chun Gu, Xianming Zhang, Hongyan Song, Xiaoling Meng, and Hai Ming "High repetition rate passively mode-locked fiber laser with a composite cavity structure for repetition rate control", Proc. SPIE 9043, 2013 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 904308 (23 December 2013); https://doi.org/10.1117/12.2034155

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KEYWORDS

Mode locking

Composites

Fiber lasers

Modulation

Picosecond phenomena

Signal to noise ratio

Frequency combs

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