Publication

Ti:sapphire rib channel waveguide fabricated by reactive ion etching of a planar waveguide

Patrik Willi Hoffmann, Markus Pollnau
2002
Journal Articles

Abstract

We report, to our knowledge, the first active channel waveguide in Ti:sapphire. We have created [similar to] 1.4-μm high ribs in a [similar to] 10-μm thick Ti:sapphire planar waveguide by reactive ion etching. Following excitation by an Ar-ion laser, the rib structure showed channel-waveguide fluorescence emission. The mode profiles and the beam-parameter values (M2) were measured. The coupling efficiency of fluorescence emission into a single-mode fiber was an order of magnitude higher than for fluorescence from unstructured planar regions of the waveguide. Such devices are of interest as low-threshold tunable lasers and as broadband light sources in low-coherence interferometry.

Official source

https://infoscience.epfl.ch/entities/publication/744e646a-11ec-482b-9f24-c750bab8f647

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Patrik Willi Hoffmann, Markus Pollnau
2002
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/744e646a-11ec-482b-9f24-c750bab8f647

About this result

Related concepts (32)

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Ti:sapphire rib channel waveguide fabricated by reactive ion etching of a planar waveguide

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