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Graphene Q-switched distributed feedback fiber lasers with narrow linewidth approaching the transform limit.
Opt Express. 2017 Apr 03; 25(7):8202-8211.OE

Abstract

A compact all-in-line graphene-based distributed feedback Bragg-grating fiber laser (GDFB-FL) with narrow linewidth of hundreds kHz is demonstrated and investigated in this study. Performing as an optical saturable absorber, graphene oscillates the initially kHz linewidth DFB-FL, and generates high-quality passively Q-switched pulses. Pumped with a 980 nm continuous-wave laser, the Q-switched GDFB-FL observes ~1 μs pulse durations, with pulse energies up to ~10 nJ and approaching the transform limit. The peak power is ~600 times higher than the original DFB-FL laser. By optimizing the cavity design and the graphene material, it is predicted that fast Q-switched pulses with more than MHz repetition rates and sub-100 ns pulse durations are achievable. Such transform-limited Q-switched GDFB-FLs with narrow linewidth of sub-MHz have long coherence length, good tunability, stability, compactness and robustness, with potential impact in optical coherent communications, metrology and sensing.

Authors

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Pub Type(s)

Journal Article

Language

eng

PubMed ID

28380935

Citation

Yao, B C., et al. "Graphene Q-switched Distributed Feedback Fiber Lasers With Narrow Linewidth Approaching the Transform Limit." Optics Express, vol. 25, no. 7, 2017, pp. 8202-8211.
Yao BC, Rao YJ, Huang SW, et al. Graphene Q-switched distributed feedback fiber lasers with narrow linewidth approaching the transform limit. Opt Express. 2017;25(7):8202-8211.
Yao, B. C., Rao, Y. J., Huang, S. W., Wu, Y., Feng, Z. Y., Choi, C., Liu, H., Qi, H. F., Duan, X. F., Peng, G. D., & Wong, C. W. (2017). Graphene Q-switched distributed feedback fiber lasers with narrow linewidth approaching the transform limit. Optics Express, 25(7), 8202-8211. https://doi.org/10.1364/OE.25.008202
Yao BC, et al. Graphene Q-switched Distributed Feedback Fiber Lasers With Narrow Linewidth Approaching the Transform Limit. Opt Express. 2017 Apr 3;25(7):8202-8211. PubMed PMID: 28380935.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Graphene Q-switched distributed feedback fiber lasers with narrow linewidth approaching the transform limit. AU - Yao,B C, AU - Rao,Y J, AU - Huang,S W, AU - Wu,Y, AU - Feng,Z Y, AU - Choi,C, AU - Liu,H, AU - Qi,H F, AU - Duan,X F, AU - Peng,G D, AU - Wong,C W, PY - 2017/4/7/entrez PY - 2017/4/7/pubmed PY - 2017/4/7/medline SP - 8202 EP - 8211 JF - Optics express JO - Opt Express VL - 25 IS - 7 N2 - A compact all-in-line graphene-based distributed feedback Bragg-grating fiber laser (GDFB-FL) with narrow linewidth of hundreds kHz is demonstrated and investigated in this study. Performing as an optical saturable absorber, graphene oscillates the initially kHz linewidth DFB-FL, and generates high-quality passively Q-switched pulses. Pumped with a 980 nm continuous-wave laser, the Q-switched GDFB-FL observes ~1 μs pulse durations, with pulse energies up to ~10 nJ and approaching the transform limit. The peak power is ~600 times higher than the original DFB-FL laser. By optimizing the cavity design and the graphene material, it is predicted that fast Q-switched pulses with more than MHz repetition rates and sub-100 ns pulse durations are achievable. Such transform-limited Q-switched GDFB-FLs with narrow linewidth of sub-MHz have long coherence length, good tunability, stability, compactness and robustness, with potential impact in optical coherent communications, metrology and sensing. SN - 1094-4087 UR - https://www.unboundmedicine.com/medline/citation/28380935/Graphene_Q_switched_distributed_feedback_fiber_lasers_with_narrow_linewidth_approaching_the_transform_limit_ DB - PRIME DP - Unbound Medicine ER -
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