Dual-Wavelength Thulium-Doped Fiber Laser With Separate Wavelengths Selection Based On A Two Mmi Filters Configuration

Keywords

dual-wavelength lasers; multimode interference effect; thulium-doped fiber laser; wavelength filtering devices

Abstract

Dual-wavelength laser emission of a ring cavity Tm-doped fiber laser with a separate wavelength selection of the simultaneously generated laser lines is experimentally demonstrated. A dual-wavelength laser operation is obtained by using two homemade multimode interference (MMI) filters with transmission peaks at the wavelengths of 1814.23 and 1872.15 nm, which are placed in a Mach Zehnder interferometer configuration for independent selection of the dual-wavelength generated laser lines. The selection of the shorter laser wavelength is achieved by submerging the MMI filter in different ethylene glycol/water mixtures, reaching a wavelength selection in the broad range of ∼24 nm. The stability results of the simultaneously generated laser lines are also shown. The use of the proposed MMI filters as reliable spectral filters for dual-wavelength generation in all-fiber Tm-doped fiber laser systems is experimentally demonstrated.

Publication Date

9-1-2018

Publication Title

Laser Physics

Volume

28

Issue

9

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/1555-6611/aacb4f

Socpus ID

85050983770 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/85050983770

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