Title

Monolithic, Narrow Linewidth, Polarization Maintaining, Thulium Fiber Laser Using Femtosecond Laser Written Fiber Bragg Gratings

Keywords

Fiber Bragg grating; Polarization maintaining; Silica fiber; Thulium

Abstract

We have demonstrated an all-fiber thulium laser system that, without any intracavity polarizing elements or free-space components, yielded a stable polarization extinction ratio (PER) of ∼18 dB. The system is based on singlemode polarization-maintaining silica fiber and its cavity is formed from each a high and low reflectivity femtosecond laser written fiber Bragg grating resonant at 2054 nm. The output of the fiber is not only highly polarized, but maintains a narrow linewidth of 78 pm at its maximum output power of 5.24 W. The high PER without any polarizing elements in the cavity is of great interest and makes the systems useful for spectral beam combining and other applications which require polarization dependent optical elements. © 2011 SPIE.

Publication Date

6-29-2011

Publication Title

Proceedings of SPIE - The International Society for Optical Engineering

Volume

8039

Number of Pages

-

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.1117/12.885989

Socpus ID

79959538217 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/79959538217

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