Low-loss, Ultra-compact Monolithic Integration Of High-speed Polarization-diversity Photodetectors
Abstract
Polarization-selective optical devices are required for polarization-diversity coherent lightwave receivers.[l] Monolithic integration of such devices with photodetectors improves detector functionality and eliminates package complexity by reducing part count and hybrid optical interconnects. Compatibility with high III-V materials' cost, however, requires simple, high-yield processes and compact device size. We previously proposed a simple and compact integration scheme employing metal-loaded vertical couplers for polarization splitting and vertically-coupled photodiodes for O/E conversion. Initial experiments using InGaAsP/InP demonstrated satisfactory optical functionality, with 10.6 and 16dB polarization selectivity for TE and TM polarized-light.[2] Here we show how such integrated devices can be modified to achieve suitable electronic performance, including wide bandwidth and high quantum efficiency.
Additional Information
© 1992 IEEE. This research was performed in part wider the auspices of the U.S. Department of Energy by the Lawrence Livermore National Laboratory under contract W-7405-ENG-48.Attached Files
Published - 00697455.pdf
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Additional details
- Eprint ID
- 93745
- Resolver ID
- CaltechAUTHORS:20190312-151154004
- W-7405-ENG-48
- Department of Energy (DOE)
- Created
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2019-03-12Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field