Simultaneous single-fibre transmission of video and bidirectional voice/data using LiNbO/sub 3/ guided-wave devices
- 1 June 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in Journal of Lightwave Technology
- Vol. 6 (6) , 937-945
- https://doi.org/10.1109/50.4085
Abstract
A system experiment which uses integrated optics to effect bidirectional transmission on a single-mode fiber is described. The system has practical applications and provides more functionality than previously reported experimental systems. The system consists of a video link (180 Mbit/s) and a voice/data link (1.54 Mbit/s) to the end user and a return voice/data link (1.54 Mbit/s) from the end user. Two LiNbO/sub 3/ devices are used to externally modulate lasers and a third is used in a novel way to demultiplex the incoming signals and to eliminate the need for an optical source at the user's end. The system operated over 4 km of standard single-mode fiber with a BER<or=10/sup -9/ and excess margins (4.9, 9.3, and 28.1 dB) on the three links.Keywords
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