Title :
Simultaneous bidirectional signalling using multiquantum well reflective modulator/detector
Author :
Kirkby, C.J.G. ; Ash, R.M. ; Moseley, A.J. ; Carter, A.C.
Author_Institution :
GEC-Marconi Mater. Techol. Ltd., Towcester, UK
Abstract :
Simultaneous bidirectional optical link operation has been demonstrated using a single multiquantum well (MQW) electro-optic modulator as a combined detector and remodulator to implement a remote, optically passive, downstream terminal. Using a nominal downstream carrier of 100 MHz with an upstream return carrier for 10 MHz, a remodulation depth as great as -10 dB has been demonstrated.
Keywords :
electro-optical devices; optical communication equipment; optical modulation; photodetectors; semiconductor quantum wells; 10 MHz; 100 MHz; MQW; bidirectional optical link operation; downstream carrier; electro-optic modulator; multiquantum well; reflective modulator/detector; remodulation depth; simultaneous bidirectional signalling; upstream return carrier;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19911469
