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Wavelength-switchable operation of quadruple-wavelength EDF laser

JIANQUN CHENG1,* , YUSHAN LIN1

Affiliation

  1. School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China

Abstract

A wavelength-switchable quadruple-wavelength erbium -doped fiber laser using linear-cavity configuration is proposed and demonstrated experimentally at room temperature. A Sagnac loop with a length of polarization -maintaining fiber acts as a comb filter and a broadband chirped fiber grating with low reflectivity acts as the flat reflective mirror in the resonant cavity. On the basis of the polarization hole burning effect, after adjusting a polarization controller, the laser can switch flexibl y to output six different modes from single-wavelength to quadruple-wavelength. All of lasing lines with narrow linewidth of less than 0.3 nm have the optical signal-to-noise ratio of more than 30 dB.Erbium-doped fiber laser, Switching, Chirped fiber grating.

Keywords

Erbium-doped fiber laser, Switching, Chirped fiber grating.

Citation

JIANQUN CHENG, YUSHAN LIN, Wavelength-switchable operation of quadruple-wavelength EDF laser, Optoelectronics and Advanced Materials - Rapid Communications, 13, 3-4, March-April 2019, pp.151-155 (2019).

Submitted at: Dec. 5, 2017

Accepted at: April 8, 2019