Optical logic circuit

Details Optical logic circuit Optical logic circuit

1989-02-07

1990-05-01

Sikes, William L.

Coherent light generators

Laser logic system

372 27, 372 50, H01S 330

Patent

active

049224972

ABSTRACT:
An optical logic circuit which is high in operation speed, low in power dissipation, and capable of operating at room temperature, possesses a semiconductor laser biased at a constant current higher than a threshold current. A light input is injected into the laser, the light input differing in the polarization direction of its oscillation mode. The output light of the semiconductor laser has a bistability characteristic with respect to the light input.

REFERENCES:
patent: 3301625 (1967-01-01), Ashkin et al.
IEEE Journal of Quantum Electronics, QE-vol. 21, p. 298, "Digital Optical Signal Processing with Polarization-Bistable Semiconductor Lasers".
"Proceedings of the 32nd Meeting of Applied Physics Joint Conference", p. 140, 31a-ZB-7 to 8.
IEEE Journal of Quantum Electronics, QE-No. 19, p. 1621, "Optoelectronic Logic Operations by Cleaved-Coupled-Cavity Semiconductor Lasers".
"Bistability in Coupled Cavity Semiconductor Lasers", Applied Physics Lett., Dutta, N. K., Jan. 1984, pp. 30-32.
"Optical Input and Output Characteristics for Bistable Semiconductor Lasers", Applied Physics Letters, vol. 41, pp. 702-704.
"High-Speed Modulation of Semiconductor Lasers", Rodney S. Tucker, Senior Member, IEEE; IEEE Transactions on Electron Devices, vol. ED-32, No. 12, Dec. 1985.
"Influence of Waveguide Design on Threshold Current of InGaAsP-InP Metal-Clad Ridge-Waveguide Lasers", Markus-Christian Amann and Bernhard Stegmuller; Tenth IEEE International Semiconductor Laser Conference, Oct. 14-17, 1986.
"Narrow-Stripe Metal-Clad Ridge-Waveguide Laser for 1.3 m Wavelength", Markus-Christian Amann and Bernhard Stegmuller, Appl. Phys. Lett. 48 (16), 21 Apr. 1986.
Extended Abstracts of the 18th (1986 International) Conference on Solid State Devices and Materials, Tokyo, 1986, pp. 723-724.

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