Low side bands wide spectrum width femtosecond passively mode-locked fiber laser

Yu Zhao; Yongzhi Liu; Deshuang Zhao; Lin Huang; Zhiyong Dai

doi:10.1117/12.831010

21 May 2009 Low side bands wide spectrum width femtosecond passively mode-locked fiber laser

Yu Zhao, Yongzhi Liu, Deshuang Zhao, Lin Huang, Zhiyong Dai

Proceedings Volume 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies; 72822Y (2009) https://doi.org/10.1117/12.831010
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Femtosecond (fs) fiber laser is very useful in fiber sensor and OTDM optical soliton communication systems. To study the suppression of side bands and the broadening of spectrum width in fs fiber laser, passively mode-locked fiber ring laser were experimentally studied. This study was based on side bands generation principle and nonlinear polarization rotation (NPR) mode lock principle. 3m deeply doped fiber was used in the ring of NPR fiber laser in the experiments, so that there were enough group velocity dispersion (GVD), chirp and high-level nonlinear effects in the ring. And these effects would help suppressing side bands and broadening spectrum width. The fiber laser with low side bands, spectrum width of 25.4nm, spectrum width tuning range of 12.4nm and repetition rates of 15.8MHz was gotten in the experiments. The theoretical limiting pulse width was about 300fs and the pulse amplitude had gotten 4% fluctuation.

Citation Download Citation

Yu Zhao, Yongzhi Liu, Deshuang Zhao, Lin Huang, and Zhiyong Dai "Low side bands wide spectrum width femtosecond passively mode-locked fiber laser", Proc. SPIE 7282, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 72822Y (21 May 2009); https://doi.org/10.1117/12.831010

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KEYWORDS

Fiber lasers

Mode locking

Dispersion

Solitons

Polarization

Femtosecond phenomena

Optoelectronics

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