Supermode-noise suppression using a nonlinear Fabry–Pérot filter in a harmonically mode-locked fiber ring laser

Zhao, Donghui, Lai, Yicheng, Shu, Xuewen, Zhang, Wei and Bennion, Ian (2002). Supermode-noise suppression using a nonlinear Fabry–Pérot filter in a harmonically mode-locked fiber ring laser. Applied Physics Letters, 81 (24), pp. 4520-4522.

Abstract

A simple efficient method for stabilizing a harmonically mode-locked fiber ring laser is proposed. In this method, a linear optical filter and a nonlinear Fabry–Pérot filter in which the refractive index is optical intensity dependent are located in the laser cavity. The linear filter is used to select a fixed lasing wavelength, and the Fabry–Pérot filter introduces a negative all-optical feedback mechanism that is able to suppress pulse-to-pulse amplitude fluctuations in the laser cavity. The scheme was experimentally demonstrated using a fiber Bragg grating as the linear filter and a laser diode biased below threshold as the nonlinear Fabry–Pérot, and stable harmonically mode-locked pulses with a supermode noise suppression ratio >55 dB were obtained.

Publication DOI: https://doi.org/10.1063/1.1528732
Divisions: Engineering & Applied Sciences > Institute of Photonics
Engineering & Applied Sciences > Electrical, electronic & power engineering
Uncontrolled Keywords: noise ,suppression,harmonically ,mode-locked fibre ring laser
Full Text Link: http://scitatio ... .1063/1.1528732
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Published Date: 2002-12-09
Authors: Zhao, Donghui
Lai, Yicheng
Shu, Xuewen
Zhang, Wei ( 0000-0002-3584-8541)
Bennion, Ian

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