Accession Number:
ADA465340
Title:
Modulating Retroreflector Implementation of MIL-STD-1553 Protocol with Free-Space Optics
Descriptive Note:
Conference paper
Corporate Author:
NAVAL RESEARCH LAB WASHINGTON DC OPTICAL SCIENCES DIV
Personal Author(s):
Report Date:
2003-01-01
Pagination or Media Count:
11.0
Abstract:
A modulating retroreflector MRR is used for a free-space optics FSO implementation of the MIL-STD-1553 protocol. A multiple quantum well MQW p-i-n structure is used for a single device that acts both as a modulator for transmitting data and as a photodiode for receiving data. A master node and two slave nodes with cats eye retroreflectors were designed using COTS optics. Two-way communication using the 1553 protocol is demonstrated at a separation of 3 meters, using widely available 980 nm pump lasers. The link was closed using only 15 mW of laser light. We have also demonstrated a coherent receiver to increase sensitivity and quadrature amplitude modulation QAM to enhance the data rate of a bandwidth-limited MRR.
Descriptors:
Subject Categories:
- Optics
- Telemetry
- Unmanned Spacecraft