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Proceedings Paper

NASA Direct Detection Laser Diode Driver
Author(s): B D Seery; C A Hornbuckle
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Paper Abstract

TRW has developed a prototype driver circuit for GaAs laser diodes as part of the NASA/Goddard Space Flight Center's Direct Detection Laser Transceiver (DDLT) program. The circuit is designed to drive the laser diode over a range of user-selectable data rates from 1.7 to 220 Mbps, Manchester-encoded, while ensuring compatibility with 8-bit and quaternary pulse position modulation (QPPM) formats for simulating deep space communications. The resulting hybrid circuit has demonstrated 10 to 90 percent rise and fall times of less than 300 ps at peak currents exceeding 100 mA.

Paper Details

Date Published: 11 July 1989
PDF: 10 pages
Proc. SPIE 1044, Optomechanical Design of Laser Transmitters and Receivers, (11 July 1989); doi: 10.1117/12.951283
Show Author Affiliations
B D Seery, TRW Space & Defense Group (United States)
C A Hornbuckle, TRW Space & Defense Group (United States)

Published in SPIE Proceedings Vol. 1044:
Optomechanical Design of Laser Transmitters and Receivers
Bernard D. Seery, Editor(s)

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