2-Dimensional integrated VCSEL and PiN photodetector arrays for a bidirectional optical links

Kent D Choquette, Antonios Giannopoulos, Ansas Matthias Kasten, Christopher Long, Chen Chen

Research output: Chapter in Book/Report/Conference proceedingConference contribution


We have designed, fabricated, and characterized separate and monolithically integrated 2-dimentional vertical cavity surface emitting laser (VCSEL) and photodetector arrays for optical board-to-board communications. The arrays of VCSELs, detectors, and integrated arrays have been fabricated on a hexagonal grid so as to maximize the number of devices that can be coupled to a circular waveguide. The integrated laser/detector arrays are in intermeshed hexagonal grids of the same period but are offset one half of a period. This results in die that have mirror symmetry after a rotation of 60 degrees. The photodetector epilayers are grown epitaxially on top of a conventional VCSEL structure. A novel fabrication process is employed which enables etching down to carefully expose the top laser facet. Device characteristics are observed to be uniform across the entire array. This in addition to the mirror symmetry of the die allow for the usage of these arrays as optical transceivers.

Original languageEnglish (US)
Title of host publication2007 IEEE Aerospace Conference Digest
StatePublished - 2007
Event2007 IEEE Aerospace Conference - Big Sky, MT, United States
Duration: Mar 3 2007Mar 10 2007

Publication series

NameIEEE Aerospace Conference Proceedings
ISSN (Print)1095-323X


Other2007 IEEE Aerospace Conference
Country/TerritoryUnited States
CityBig Sky, MT

ASJC Scopus subject areas

  • Aerospace Engineering
  • Space and Planetary Science


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