Reflex transmitter for a bidirectional light waveguide communica

Details Reflex transmitter for a bidirectional light waveguide communica Reflex transmitter for a bidirectional light waveguide communica

1988-08-01

1989-10-03

Davie, James W.

Telecommunications

Receiver or analog modulated signal frequency converter

Signal selection based on frequency

350 9616, 455612, G02B 610, G02B 628

Patent

active

048712221

ABSTRACT:
A bidirectional light waveguide communication system that has a light source preferably formed by a laser at one end of the light waveguide and a reflex transmitter at the other end of the waveguide with the reflex transmitter formed by a halved controllable optical directional coupler which has two strip waveguides that are terminated by a partially reflecting mirror and which has control electrodes which receive a transmission signal. An opto-electrical transducer receives the received light signal from both strip waveguides after the partially reflecting mirror.

REFERENCES:
patent: 4195269 (1980-03-01), Ettenberg et al.
patent: 4291939 (1981-09-01), Giollorenzi et al.
patent: 4436365 (1984-03-01), Hodgins et al.
patent: 4492425 (1985-01-01), Kersten et al.
patent: 4667331 (1987-05-01), Alferness et al.
patent: 4712859 (1987-12-01), Albanese et al.
Optics Communications, 15 Feb. 1981, "180.degree. Turns in Integrated Optics", Tietgen et al., pp. 281-284.
Duthie et al, Electronics Letters, 8 May 1986, vol. 22, No. 10, pp. 517 and 518.
Wheeler et al, Electronics Letters, vol. 22, No. 9, Apr. 1986, pp. 479-481.
Auracher et al, "Entiwicklungstendenzen der Integrierten Optik", Telcom Report 10, 1987, pp. 90-98.

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