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

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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
Number of pages8
ISBN (Print)9780819493682
Publication statusPublished - 2013
EventSolid State Lasers XXII: Technology and Devices - San Francisco, CA, United States
Duration: 3 Feb 20135 Feb 2013


OtherSolid State Lasers XXII: Technology and Devices
Country/TerritoryUnited States
CitySan Francisco, CA


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