Transmitter and translating receiver design for 64-ary pulse position modulation (PPM)

Antonio J. Mendez; Vincent J. Hernandez; Robert M. Gagliardi; Corey V. Bennett

doi:10.1117/12.842687

26 February 2010 Transmitter and translating receiver design for 64-ary pulse position modulation (PPM)

Antonio J. Mendez, Vincent J. Hernandez, Robert M. Gagliardi, Corey V. Bennett

Proceedings Volume 7587, Free-Space Laser Communication Technologies XXII; 75870M (2010) https://doi.org/10.1117/12.842687
Event: SPIE LASE, 2010, San Francisco, California, United States

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.

Citation Download Citation

Antonio J. Mendez, Vincent J. Hernandez, Robert M. Gagliardi, and Corey V. Bennett "Transmitter and translating receiver design for 64-ary pulse position modulation (PPM)", Proc. SPIE 7587, Free-Space Laser Communication Technologies XXII, 75870M (26 February 2010); https://doi.org/10.1117/12.842687

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