Versatile fs laser-written glass chip lasers

David G. Lancaster, Simon Gross, Alex Fuerbach, H. Ebendorff-Heidepriem, Tanya M. Monro, Michael Withford

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

58 Downloads (Pure)

Abstract

We report laser-written chip lasers with potential to be a platform planar technology versatile enough to cover the visible through to the mid-infrared spectral region. By femtosecond laser direct-writing a thulium doped fluoride based glass host (ZBLAN), we have demonstrated a 151% quantum efficiency λ=1.9 μm laser with a close to diffraction limited beam quality (M2∼ 1.12 ± 0.08) with 225 nm of continuous tunability in a device that can be rapidly fabricated by singlestep optical processing. The 9 mm long planar chip developed for concept demonstration contains fifteen large modearea waveguides that can operate in semi-monolithic or external cavity laser configurations. This chip laser has achieved the highest quantum efficiency from a planar glass waveguide laser. The depressed cladding geometry supports the largest fundamental modes reported for a rare-earth doped waveguide laser thereby favouring high peak-power operation which is demonstrated by achieving 1.9 kW peak-power pulses when Q-switched.

Original languageEnglish
Title of host publicationSolid State Lasers XXII
Subtitle of host publicationtechnology and devices
EditorsW. Andrew Clarkson, Ramesh K. Shori
Place of PublicationBellingham, NJ
PublisherSPIE
Pages1-8
Number of pages8
Volume8599
ISBN (Print)9780819493682
DOIs
Publication statusPublished - 2013
EventSolid State Lasers XXII: Technology and Devices - San Francisco, CA, United States
Duration: 3 Feb 20135 Feb 2013

Other

OtherSolid State Lasers XXII: Technology and Devices
CountryUnited States
CitySan Francisco, CA
Period3/02/135/02/13

Fingerprint Dive into the research topics of 'Versatile fs laser-written glass chip lasers'. Together they form a unique fingerprint.

Cite this