Semiconductor light modulating optical wave guide

Details Semiconductor light modulating optical wave guide Semiconductor light modulating optical wave guide

1974-09-09

1976-04-20

Corbin, John K.

350160R, 350150, G02B 514, G02F 101

Patent

active

039515133

ABSTRACT:
A wave guide device for varying the polarization of a light beam comprises a diode formed of a film of a material such as a glassy amorphous material or a plastic of a first kind of electrical conductivity (P or N) disposed on a substrate of semiconductor material exhibiting the opposite kind of electrical conductivity (N or P), an input optical coupler for coupling a light beam into the glassy film of the diode so that the light will pass through the film by a series of internal reflections, an output optical coupler and means for applying a bias voltage to the diode. In operation, variation of the bias voltage varies the phase of the light beam as it passes therethrough. This change in phase can be detected as a change in the polarization of the light beam exiting from the output coupler.

REFERENCES:
patent: 3462211 (1962-08-01), Nelson et al.
patent: 3866143 (1975-02-01), Jacobs et al.
Cheo, Appl. Phys. Lett., Vol. 22, No. 5, Mar. 1973, pp. 241-244.
Pinto et al., Appl. Phys. Lett., Vol. 19, No. 7, Oct. 1971, pp. 221-223.
Reinhard et al., Appl. Phys. Lett., Vol. 23, No. 9, Nov. 1973, pp. 521-523.
Reinhart et al., Appl. Phys. Lett., Vol. 20, No. 1, Jan. 1972, pp. 36-38.

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