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Proceedings Paper

Transmitter and translating receiver design for 64-ary pulse position modulation (PPM)
Author(s): Antonio J. Mendez; Vincent J. Hernandez; Robert M. Gagliardi; Corey V. Bennett
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Paper Abstract

This paper explores the architecture and design of an optically-implemented 64-ary PPM transmitter and direct-translating receiver that effectively translates incoming electrically-generated bit streams into optical PPM symbols (and vice-versa) at > 1 Gb/s data rates. The PPM transmitter is a cascade of optical switches operating at the frame rate. A corresponding receiver design is more difficult to architect and implement, since increasing data rates lead to correspondingly shorter decision times (slot times and frame times). We describe a solution in the form of a time-to-space mapping arrayed receiver that performs a translating algorithm represented as a code map. The technique for generating the code map is described, and the implementation of the receiver as a planar lightwave circuit is given. The techniques for implementing the transmitter and receiver can be generalized for any case of M-ary PPM.

Paper Details

Date Published: 26 February 2010
PDF: 7 pages
Proc. SPIE 7587, Free-Space Laser Communication Technologies XXII, 75870M (26 February 2010); doi: 10.1117/12.842687
Show Author Affiliations
Antonio J. Mendez, Mendez R&D Associates (United States)
Vincent J. Hernandez, Lawrence Livermore National Lab. (United States)
Robert M. Gagliardi, The Univ. of Southern California (United States)
Corey V. Bennett, Lawrence Livermore National Lab. (United States)


Published in SPIE Proceedings Vol. 7587:
Free-Space Laser Communication Technologies XXII
Hamid Hemmati, Editor(s)

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