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Proceedings Paper

High-performance laser-diode transmitter for optical free-space communication
Author(s): Ulrich Hildebrand; Klaus W. Hildebrand; Gerhard Ohm; E. Voit; Theo J. Wiesmann
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Paper Abstract

For the ESA Semiconductor Intersatellite Link Experiment (SILEX), elements of the communication chain have been breadboarded. The electrooptical converter, called the laser diode transmitter package (LDTP), is described here. The requirements on the LDTP optical quality are deduced from the overall system requirements. The tolerable wavefront errors (WFE) and the stability of beam direction are most critical. Four breadboards have been assembled and tested. The very stringent requirements on WFE were surpassed, with a resulting rms value of 1/40 waves. In order to achieve this wavefront quality, the typical astigmatism of index-guided laser diodes (1-10 microns) had to be compensated by adjustable cylindrical lenses.

Paper Details

Date Published: 1 July 1990
PDF: 12 pages
Proc. SPIE 1218, Free-Space Laser Communication Technologies II, (1 July 1990); doi: 10.1117/12.18235
Show Author Affiliations
Ulrich Hildebrand, ANT Nachrichtentechnik GmbH (Germany)
Klaus W. Hildebrand, Wild Leitz Heerbrugg AG (Switzerland)
Gerhard Ohm, ANT Nachrichtentechnik GmbH (Germany)
E. Voit, Wild Leitz Heerbrugg AG (Switzerland)
Theo J. Wiesmann, ANT Nachrichtentechnik GmbH (Germany)

Published in SPIE Proceedings Vol. 1218:
Free-Space Laser Communication Technologies II
David L. Begley; Bernard D. Seery, Editor(s)

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