Title :
The STARNET coherent WDM computer communication network: experimental transceiver employing a novel modulation format
Author :
Hickey, Michael ; Kazovsky, Leonid
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
We have designed, constructed, and investigated an experimental transceiver employing a novel combined PSK and ASK modulation format for the STARNET coherent WDM computer communication network. Using this experimental transceiver, we show that it is possible to transmit and receive 2.488 Gb/s PSK circuit-switched data and 125 Mb/s ASK packet-switched data on the same lightwave. The experimental transceiver employs a custom integrated-optic LiNbO3 modulator with both phase and amplitude sections, a 2.488 Gb/s tunable PSK heterodyne receiver, and a 125 Mb/s ASK heterodyne receiver. Both receivers function properly with error rates less than 10-9 and a sensitivity of -32.1 dBm; the corresponding optimum ASK modulation depth is 0.57. The resulting network power budget is 26.6 dB
Keywords :
amplitude shift keying; local area networks; optical links; optical modulation; phase shift keying; sensitivity; transceivers; wavelength division multiplexing; 125 Mbit/s; 2.488 Gbit/s; ASK heterodyne receiver; ASK modulation format; ASK packet-switched data; LiNbO3; PSK; PSK circuit-switched data; STARNET coherent WDM computer communication network; error rates; integrated-optic LiNbO3 modulator; modulation format; network power budget; optimum ASK modulation depth; receive; sensitivity; transceiver; transmit; tunable PSK heterodyne receiver; Amplitude modulation; Amplitude shift keying; Circuits; Communication networks; Computer networks; Phase modulation; Phase shift keying; Transceivers; WDM networks; Wavelength division multiplexing;
Journal_Title :
Lightwave Technology, Journal of
