Optical delay type flipflop and shift register using it

Details Optical delay type flipflop and shift register using it Optical delay type flipflop and shift register using it

1985-11-07

1988-08-02

LaRoche, Eugene R.

350 9615, 350356, 350355, 350393, G02B 523, G02B 626, G02B 530, G02F 101

Patent

active

047610603

ABSTRACT:
An optical D flipflop comprising a 2.times.1 optical switch and a optical bistable element. The flipflop has a first input end adapted to receive optical digital data, a second input end adapted to receive a biasing optical signal and at least one output end for emitting a light beam comprising the bias signal or optical information pulses, depending upon the state of a clock signal applied to the signal flip flop switch. The flip flops, when connected in cascade through light branching circuits, act as a shift register.

REFERENCES:
patent: 4573767 (1986-03-01), Jewell
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R. V. Schmidt, L. L. Buhl, "Experimental 4.times.4 Optical Switching Network", Oct. 1976, vol. 12, No. 22, pp. 575-577, Electronic Letters.
Rod C. Alferness, "Guided-Wave Devices for Optical Communication", IEEE Journal of Quantum Electronics, vol. QE-17, No. 6, pp. 946-959, Jun. 81.
Yoh Ogawa, Hiromassa Ito, & Humio Inaba, "Bistable Optical Device Using a Light Emitting Diode", Applied Optics, vol. 21, No. 11, Jun. 1982, pp. 1878-1880.
"A Microprocessor and Optoelectronics Based Packet Switch for Satellite Communications", Con. Record of IEEE Int'l Conf. on Comm., pp. 15.3.1-15.3.5, 1981.
Conf. Rpt. #937, Inst. of Electronics and Communication Engineers of Japan in Apr. 1983.

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