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Proceedings Paper

Recent progress in continuous-wave Ti:sapphire waveguide lasers
Author(s): Christos Grivas; Costantino Corbari; Gilberto Brambilla
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Paper Abstract

A detailed study of the fabrication and continuous-wave laser operation of Ti:sapphire channel waveguides written with femtosecond (fs) and picosecond (ps) laser pulses in the bulk of a Ti:sapphire crystal is presented. The waveguides were produced using the double-line approach and the effect of parameters such as the laser pulse duration, repetition rate and interline spacing were investigated for optimizing the laser operation. Structures fabricated by fs-laser pulses (180 fs) exhibited superior performance delivering output powers up 143 mW with a slope efficiency of 23.5% and producing laser emission above a threshold of 84 mW. The emission wavelength was tuned over a wavelength range spanning from 700 to 920 nm using cavity optics with broadband transmission at the lasing wavelength in combination with a birefringent filter in an external cavity.

Paper Details

Date Published: 8 March 2014
PDF: 7 pages
Proc. SPIE 8988, Integrated Optics: Devices, Materials, and Technologies XVIII, 898808 (8 March 2014); doi: 10.1117/12.2043442
Show Author Affiliations
Christos Grivas, Univ. of Southampton (United Kingdom)
Costantino Corbari, Univ. of Southampton (United Kingdom)
Gilberto Brambilla, Univ. of Southampton (United Kingdom)


Published in SPIE Proceedings Vol. 8988:
Integrated Optics: Devices, Materials, and Technologies XVIII
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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