50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling

Details 50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling 50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990spie.1218..385s&link_type=abstract

IN: Free-space laser communication technologies II; Proceedings of the Meeting, Los Angeles, CA, Jan. 15-17, 1990 (A91-22776 08-

Statistics

Applications

1

Aluminum Gallium Arsenides, Laser Applications, Optical Communication, Photodiodes, Pulse Position Modulation, Avalanche Diodes, Bit Error Rate, Block Diagrams, Data Transmission, Maximum Likelihood Estimates, Semiconductor Lasers, Silicon

Scientific paper

A 50 Mbps direct detection optical communication system for use in an intersatellite link was constructed with an AlGaAs laser diode transmitter and a silicon avalanche photodiode photodetector. The system used a Q = 4 PPM format. The receiver consisted of a maximum likelihood PPM detector and a timing recovery subsystem. The PPM slot clock was recovered at the receiver by using a transition detector followed by a PLL. The PPM word clock was recovered by using a second PLL whose input was derived from the presence of back-to-back PPM pulses contained in the received random PPM pulse sequences. The system achieved a bit error rate of 0.000001 at less than 50 detected signal photons/information bit. The receiver was capable of acquiring and maintaining slot and word synchronization for received signal levels greater than 20 photons/information bit, at which the receiver bit error rate was about 0.01.

Affiliated with

Also associated with

No associations

Rating

50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with 50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and 50 Mbps free space direct detection laser diode optical communication system with Q = 4 PPM signaling will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1096875