Direct generation of 62-fs pulses in an erbium-doped fiber laser

Junwen Li; Handing Xia; Wenxiong Du; Heping Li; Yong Liu

doi:10.1117/12.2500947

24 July 2018 Direct generation of 62-fs pulses in an erbium-doped fiber laser

Junwen Li, Handing Xia, Wenxiong Du, Heping Li, Yong Liu

Proceedings Volume 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018); 108273T (2018) https://doi.org/10.1117/12.2500947
Event: Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 2018, Shanghai, China

Abstract

We present a passively mode-locked erbium-doped fiber ring laser with near-zero net cavity dispersion using the nonlinear polarization rotation technique. The compact all-fiber laser is constructed by utilizing an optical integrated component. Through optimizing the cavity dispersion and nonlinearity, high-peak-power near-transform-limited pulses with a spectral width beyond the gain bandwidth limitation can be directly obtained from the laser. Resultant output pulses have a pulse duration of 62 fs, a 3-dB spectral width of 66.3 nm, and a maximum peak power of 7.9 kW. Numerical simulations reproduce the generation of sub-100-fs pulses in the laser. The pulse-shaping mechanism can be attributed to simultaneous dispersion and nonlinearity management in the cavity, which is distinct from that in the stretched-pulse lasers.

Citation Download Citation

Junwen Li, Handing Xia, Wenxiong Du, Heping Li, and Yong Liu "Direct generation of 62-fs pulses in an erbium-doped fiber laser", Proc. SPIE 10827, Sixth International Conference on Optical and Photonic Engineering (icOPEN 2018), 108273T (24 July 2018); https://doi.org/10.1117/12.2500947

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KEYWORDS

Picosecond phenomena

Numerical simulations

Polarization

Solitons

Optical simulations

Pulsed laser operation

Integrated optics

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