Light connecting device and method of driving the same

Details Light connecting device and method of driving the same Light connecting device and method of driving the same

1992-03-09

1994-12-20

Chilcot, Jr., Richard E.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359122, 359156, H04J 1408

Patent

active

053750047

ABSTRACT:
A light connecting device for routing information uses only light signals. The light connecting device includes photoelectric input/output elements having a light threshold and a light memory, a polarized beam splitter, and light delay circuits having different light delays. The light input signal includes a timing signal and an information signal sequentially input into the beam splitter. The timing light signal is separated from the other signals using the beam splitter and then input into the respective photoelectric input/output elements through the light delay circuits. If the address light signal is incident in synchronization with that of the timing light signal, only the element on which the address and timing lights are simultaneously incident is turned ON and acts as a light amplifier by injecting current to amplify the information signals. Thus, the light connecting device of the invention realizes a self-routing operation using only light signals having the address of information specified by light signals.

REFERENCES:
patent: 5072439 (1991-12-01), Forrest et al.
patent: 5153758 (1992-10-01), Tashiro et al.
Odagawa et al., "All Optical Flip-Flop of Bistable Laser Diode"; The Institute of Electronics, Information and Communication Engineers; Autumn National Convention Record, Part C-1, p. 48; 1988.
Ogura et al., "Optical Self-Routing Switch with Wavelength Filtering Function Using VSTEPS"; The Institute of the Applied Physics Engineers; 51st Convention, 1990.
"Double Heterostructure Optoelectronic Switch as a Dynamic Memory with Low-Power Consumption"; K. Kasahara et al.; Applied Physics Letter; vol. 52, pp. 679-681, Feb. 29, 1988.

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