Low-loss passive waveguides in a generic InP foundry process via local diffusion of zinc.
Opt Express
; 23(19): 25143-57, 2015 Sep 21.
Article
em En
| MEDLINE
| ID: mdl-26406713
ABSTRACT
Generic InP foundry processes allow monolithic integration of active and passive elements into a common p-n doped layerstack. The passive loss can be greatly reduced by restricting the p-dopant to active regions. We report on a localized Zn-diffusion process based on MOVPE, which allows to reduce waveguide loss from 2 dB/cm to below 0.4 dB/cm. We confirm this value by fabrication of a 73 mm long spiral ring resonator, with a record quality factor of 1.2 million and an extinction ratio of 9.7 dB.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Express
Ano de publicação:
2015
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Article