CW and pulsed performance of Tm-doped photonic crystal fiber lasers

Pankaj Kadwani, R. Andrew Sims, Lasse Leick, Jes Broeng, Lawrence Shah, Martin Richardson

Research output: Contribution to journalConference articleResearchpeer-review

Abstract

We demonstrate single-mode, highly polarized output from a thulium-doped photonic crystal fiber (PCF) with 50 μm core diameter and an ultra-large mode area >1000 μm2. To our knowledge, this is the largest mode area of any flexible PCF and is capable of enabling the generation of high peak powers. In a Q-switched oscillator configuration, this fiber produces peak powers as high as 8.9 kW with 435 μJ, 49 ns pulses, >15 dB polarization extinction ratio and quasi diffraction-limited beam quality. The pulse energy was scaled to >1 mJ in amplifier configuration.
Original languageEnglish
JournalProceedings of SPIE, the International Society for Optical Engineering
Volume8381
Pages (from-to)83811F
ISSN0277-786X
DOIs
Publication statusPublished - 2012
Externally publishedYes
EventSPIE Defense, Security, and Sensing : Laser Technology for Defense and Security VIII - Baltimore, MD, United States
Duration: 23 Apr 201227 Apr 2012
http://spie.org/app/program/index.cfm?fuseaction=conferencedetail&conference=8381

Conference

ConferenceSPIE Defense, Security, and Sensing : Laser Technology for Defense and Security VIII
CountryUnited States
CityBaltimore, MD
Period23/04/201227/04/2012
Internet address

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