Lasing in Thulium doped Polarizing Photonic Crystal Fibers (PCF)

Pankaj Kadwani, Norbert Modsching, R. Andrew Sims, Lasse Leick, Jes Broeng, Lawrence Shah, Martin Richardson, Eric C. Honea, Sami T. Hendow

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

We describe lasing in polarizing thulium doped PCF fiber for the first time. The ~4 m long fiber had 50/250 μm core/cladding diameters and hole-diameter to pitch ratio of 0.18. CW lasing was achieved by end pumping with a 793 nm diode in an oscillator configuration. Slope efficiencies of ~35 % have been obtained with single mode beam quality (M2 13 dB without any intra-cavity polarizing elements. This fiber, with MFD of ~36 μm and ~5.8 dB/m cladding pump absorption, is an attractive option for high energy pulsed amplifiers in the 2 μm wavelength regime.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume8237
Pages (from-to)82372Z
Number of pages4
ISSN0277-786X
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventSPIE Photonics West : Fiber Lasers IX: Technology, Systems, and Applications - San Francisco, CA, United States
Duration: 23 Jan 201226 Jan 2012

Conference

ConferenceSPIE Photonics West : Fiber Lasers IX: Technology, Systems, and Applications
Country/TerritoryUnited States
CitySan Francisco, CA
Period23/01/201226/01/2012

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