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Low-loss ridge optical waveguides in quarternary InGaAlAs/InP grown by MBE

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5 Author(s)
Cinguino, P. ; CSELT¿Centro Studi e Laboratori Telecomunicazioni, Torino, Italy ; Genova, F. ; Morasca, S. ; Rigo, C.
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Low-loss waveguiding at 1.55 ¿m wavelenght in quarternary InGaAlAs grown on InP by molecular-beam epitaxy is demonstrated for the first time. Ridge waveguides with length up to 1.8 cm width between 1.3 and 50 ¿m have losses as low as 2.2dB/cm, showing the potential of this materials systems for high-performance waveguide devices.

Published in:

Electronics Letters  (Volume:23 ,  Issue: 5 )