Dual-wavelength fiber laser operating above 2 μm based on cascaded single-mode-multimodesingle-mode fiber structures

Shijie Fu, Guannan Shi, Quan Sheng, Wei Shi, Xiushan Zhu, Jianquan Yao, Robert A Norwood, Nasser N Peyghambarian

Research output: Contribution to journalArticle

22 Scopus citations

Abstract

A stable dual-wavelength Tm3+:Ho3+ co-doped fiber laser operating above 2 μm based on cascaded single-mode-multimode-singlemode (SMS) fiber structures is proposed and experimentally demonstrated. Based on the theoretical analysis of the transmission properties of the SMS fiber structure, two cascaded SMS fiber devices with different multimode fiber (MMF) lengths were used in our laser system, where one acted as a long-pass filter to suppress the competitive laser below 2 μm, and the other worked as a band-pass filter to select the specific operating wavelengths of the laser. Dual-wavelength operation of the fiber laser at 2002.8 and 2016.1 nm has been achieved in the experiment with a signal to a noise ratio up to 50 dB.

Original languageEnglish (US)
Pages (from-to)11282-11289
Number of pages8
JournalOptics Express
Volume24
Issue number11
DOIs
StatePublished - May 30 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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