Optical space switches using cascaded coupled-waveguide optical

Details Optical space switches using cascaded coupled-waveguide optical Optical space switches using cascaded coupled-waveguide optical

1989-01-18

1990-06-19

Sikes, William L.

350 9613, 350 9615, 350 9616, 350 9620, G02B 610

Patent

active

049347756

ABSTRACT:
An optical space switch architecture is constructed from electro-optical gate arrays each comprised of a plurality of ultra-high-extinction optical intensity modulators which are in turn fabricated from cascaded directional waveguide coupler sections. Input optical signals are processed by 1-to-N passive splitter circuits for providing interim optical signals which are routed to the optical gtate arrays. Each interim signal is processed by an optical modulator and emerges, depending upon the activation of the particular gate, in either an ON or OFF state. The optical signals emerging from the gate arrays are routed to N-to-1 passive combiner circuits according to a connectivity configuration whereupon the incoming signals are combined before appearing at the output ports of the combiner circuits. Optical amplifiers are incorporated into the splitter and combiner circuits if power compensation is required. The point-to-multipoint connectivity configuration allows each input optical signal to be distributed to all of the output ports if so desired. The switching connections for establishing the desired distribution of the input optical signals among the output ports are implemented by turning ON or OFF the appropriate electro-optic gates in the gate array.

REFERENCES:
patent: 4608682 (1986-08-01), Nagashima et al.
patent: 4618210 (1986-10-01), Kondo
patent: 4787692 (1988-11-01), Spanke
patent: 4798429 (1989-01-01), Djupsjobacka
patent: 4798435 (1989-01-01), Fujiwara et al.
patent: 4815027 (1989-03-01), Tokumitsu et al.
patent: 4815803 (1989-03-01), Faulkner et al.
patent: 4818050 (1989-04-01), Duthie
patent: 4818063 (1989-04-01), Takizawa
patent: 4822124 (1989-04-01), Suzuki
patent: 4840447 (1989-06-01), Kataoka
patent: 4842367 (1989-06-01), Djupsjobacka
R. C. Alferness, "Waveguide Electrooptic Switch Arrays", IEEE J. of Selected Areas in Comm., vol. 6, pp. 1117-1130 (1988).
A. Himeno, M. Kobayashi, "Single-Mode Guided-Wave . . . Gates", Electronic Letters, vol. 23, pp. 887-888 (1987).
M. Ikeda, "Laser Diode Switch", Electronic Letters, vol. 17, pp. 899-900 (1981).
R. C. Alferness, "Waveguide Electrooptic Modulator", IEEE Trans. on Microwave Theory and Tech., MTT-30, pp. 1121-1137 (1982).
E. Voges, A. Neyer, "Integrated-Optic Devices . . . Communication", IEEE/OSAJ. of Lightwave Technology, vol. LT-5, pp. 1229-1238 (1987).
L. Thylen, "Integrated Optics in LiNbO.sub.3 : . . . Telecommunications", IEEE/OSAJ. of Lightwave Technology, vol. 6, pp. 847-861 (1988).
K. Koai, P. Liu, "Digital and Quasi-Linear . . . from Directional Couplers", IEEE J. Quantum Elect., vol. QE-22, pp. 2191-2194 (1986).

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