Directional light output from photonic-wire microcavity semiconductor lasers

Directional light output from photonic-wire microcavity semiconductor lasers

We have obtained directional light output from a recently realized InGaAsP photonic-wire microcavity ring lasers. The output was achieved by fabricating a 0.45-μm-wide U-shape waveguide next to a 10-μm diameter microcavity ring laser. The laser has a threshold pump power of around 124 μW when optica...

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Bibliographic Details
Published in:IEEE photonics technology letters Vol. 8; no. 8; pp. 968 - 970
Main Authors: Zhang, J.P., Chu, D.Y., Wu, S.L., Bi, W.G., Tiberio, R.C., Tu, C.W., Ho, S.T.
Format: Journal Article
Language:English
Published: IEEE 01-08-1996
Subjects:
Laser excitation
Microcavities
Optical pumping
Optical waveguides
Power lasers
Pump lasers
Ring lasers
Semiconductor lasers
Semiconductor waveguides
Waveguide lasers
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Summary:We have obtained directional light output from a recently realized InGaAsP photonic-wire microcavity ring lasers. The output was achieved by fabricating a 0.45-μm-wide U-shape waveguide next to a 10-μm diameter microcavity ring laser. The laser has a threshold pump power of around 124 μW when optically pumped at 514 nm. It is comparable to the former structure without output coupling. The output coupling efficiency can be controlled carefully by choosing the spacing between the laser cavity and the waveguide.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1041-1135
1941-0174
DOI:10.1109/68.508706