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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 37, Iss. 14 — May. 10, 1998
  • pp: 2811–2821

Parallel free-space optical interconnect based on arrays of vertical-cavity lasers and detectors with monolithic microlenses

Eva M. Strzelecka, Duane A. Louderback, Brian J. Thibeault, Geoff B. Thompson, Kent Bertilsson, and Larry A. Coldren  »View Author Affiliations


Applied Optics, Vol. 37, Issue 14, pp. 2811-2821 (1998)
http://dx.doi.org/10.1364/AO.37.002811


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Abstract

We investigate the use of low-threshold 980-nm vertical-cavity surface-emitting lasers for free-space optical interconnects. The vertical-cavity surface-emitting lasers and backilluminated detectors are monolithically integrated with microlenses on the back sides of the growth substrates to eliminate the necessity of external optics. With a channel pitch of 250 μm, an interconnect length between boards of the order of 5 to 10 mm with a ±50-μm lateral alignment tolerance can be achieved without external relay optics. The complete link is modeled to predict the system’s efficiency and maximum bit rate. Data transmission at 500 Mbits/s per channel is demonstrated. The data rate was limited by parasitics, not the inherent bandwidth of the laser diodes.

© 1998 Optical Society of America

OCIS Codes
(140.3460) Lasers and laser optics : Lasers
(200.4650) Optics in computing : Optical interconnects
(220.3630) Optical design and fabrication : Lenses
(350.3950) Other areas of optics : Micro-optics

History
Original Manuscript: June 6, 1997
Revised Manuscript: October 28, 1997
Published: May 10, 1998

Citation
Eva M. Strzelecka, Duane A. Louderback, Brian J. Thibeault, Geoff B. Thompson, Kent Bertilsson, and Larry A. Coldren, "Parallel free-space optical interconnect based on arrays of vertical-cavity lasers and detectors with monolithic microlenses," Appl. Opt. 37, 2811-2821 (1998)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-37-14-2811

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