Title

Resonant Optical Devices For Ir Lasers

Keywords

fiber laser; fluoride fiber; guided mode resonance filter (GMRF); Mid-infrared fiber laser; optical filter

Abstract

This paper highlights recent developments in resonant optical devices for infrared (IR) and mid-infrared (mid- IR) lasers. Sub-wavelength grating based resonant optical filters are introduced and their application in 2 μm thulium fiber laser and amplifier systems has been discussed. The paper focuses on applying such filtering techniques to 2.8 μm mid-IR fiber laser systems. A narrowband mid-IR Guided-Mode Resonance Filter (GMRF) was designed and fabricated using Hafnium(IV) Oxide film/quartz wafer material system. The fabricated GMRF was then integrated into an Erbium (Er)-doped Zr-Ba-La-Al-Na (ZBLAN) fluoride glass fiber laser as a wavelength selective feedback element. The laser operated at 2782 nm with a linewidth less than 2 nm demonstrating the viability of GMRF's for wavelength selection in the mid-IR. Furthermore, a GMRF of narrower linewidth based on Aluminum Oxide/quartz wafer material system is fabricated and tested in the same setup. The potentials and challenges with GMRFs will be discussed and summarized. © 2013 Copyright SPIE.

Publication Date

5-30-2013

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8599

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.2012525

Socpus ID

84878189051 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84878189051

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