Short monolithic dual-wavelength single-longitudinal-mode DBR phosphate fiber laser

Lingyun Xiong, Peter Hofmann, Axel Schülzgen, Nasser N Peyghambarian, Jacques Albert

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

We propose and demonstrate a 5-cm-long monolithic dual-wavelength single-longitudinal mode distributed Bragg reflector (DBR) all-phosphate fiber laser. Strong UV-induced fiber Bragg gratings are directly written in highly Er/Yb codoped phosphate fiber. The separation between gratings is selected as 1 cm to only excite two longitudinal modes in the DBR cavity. By exploiting the spatial hole burning effect and the polarization hole burning effect, stable narrow-linewidth dual-wavelength lasing emission with 38 pm wavelength spacing and a total emitted power of 2.8 mW is obtained from this DBR fiber laser. A microwave signal at 4.58 GHz is generated by the heterodyne detection of the dual-wavelength laser.

Original languageEnglish (US)
Pages (from-to)3848-3853
Number of pages6
JournalApplied Optics
Issue number18
DOIs
StatePublished - Jun 20 2014

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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