McMillen, B and Zhang, B and Chen, KP and Benayas, A and Jaque, D
(2012)
Ultrafast laser fabrication of low-loss waveguides in chalcogenide glass with 0.65 dB/cm loss.
Optics Letters, 37 (9).
1418 - 1420.
ISSN 0146-9592
Abstract
This Letter reports on the fabrication of low-loss waveguides in gallium-lanthanum-sulfide chalcogenide glasses using an ultrafast laser. Spatial beam shaping and temporal pulse width tuning were used to optimize the guided mode profiles and optical loss of laser-written waveguides. Highly symmetric single-mode waveguides guiding at 1560 nm with a loss of 0.65 dB/cm were fabricated using 1.5 ps laser pulses. This Letter suggests a pathway to produce high quality optical waveguides in substrates with strong nonlinearity using the ultrafast laser direct writing technique. © 2012 Optical Society of America.
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