Share Email Print

Proceedings Paper

Laser transmitter assembly for the Optical Communication Demonstrator
Author(s): Hamid Hemmati; David J. Copeland
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

A modulated fiber-coupled diode laser assembly has been developed. This module will serve as the laser transmitter assembly for the Optical Communication Demonstrator (OCD) system. The laser is capable of greater than 20 mW of output at 100 Mbps Q-PPM modulation. It consists of a high-speed driver, a controller to maintain output amplitude under varying duty cycles, and a temperature controller to control output wavelength. The driver provides over 280 mA of peak modulation current with an optical pulse risetime of approximately 1 ns. The switching speed is limited by the inductance of the laser mount and the cable connecting the driver to the mount. The laser is coupled to a single-mode polarization preserving fiber that can feed directly into the telescope assembly of OCD.

Paper Details

Date Published: 16 August 1994
PDF: 9 pages
Proc. SPIE 2123, Free-Space Laser Communication Technologies VI, (16 August 1994); doi: 10.1117/12.184654
Show Author Affiliations
Hamid Hemmati, Jet Propulsion Lab. (United States)
David J. Copeland, EVI Inc. (United States)

Published in SPIE Proceedings Vol. 2123:
Free-Space Laser Communication Technologies VI
G. Stephen Mecherle, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?