Logic function generator using an optical transposition in a dis

Details Logic function generator using an optical transposition in a dis Logic function generator using an optical transposition in a dis

1992-10-01

1994-04-26

Lee, John D.

Coherent light generators

Particular resonant cavity

Distributed feedback

372 8, H01S 310

Patent

active

053073665

ABSTRACT:
Logic function generator using an optical transposition in a distributed feedback laser diode. It comprises sources (LD1, LD2) of synchronous digital optical signals having the same rate, an optical coupler (10) receiving said signals and supplying an optical signal, a distributed feedback laser diode (LD3) into which is injected said optical signal, means (24) for the electrical polarization of said laser diode enabling the latter to supply a signal, whose optical frequency varies as a function of the optical power of the injected signal, an optical filter (12) which receives said signal and which is frequency tunable and control means (28) for the said filter. The latter supplies a signal which is a logic function of the signals of the sources. Application to optical calculation.

REFERENCES:
patent: 4835779 (1989-05-01), Liou
patent: 4873690 (1989-10-01), Adams
patent: 4962502 (1990-10-01), Adams
Electronics Letters, vol. 25, No. 22, Oct. 26, 1989, pp. 1485-1486, H. Nobuhara, et al., "Optical Exclusive-or Operation Using Tunable Wavelength Conversion Laser Diode".
Electronic Letters, vol. 25, No. 20, Sep. 28, 1989, pp. 1360-1362, K. Inoue, et al., "Wavelength Conversion for FM Light Using Light Injection Induced Frequency Shift in DFB-LD".
Patent Abstracts of Japan, vol. 13, No. 23 (E-705), Jan. 19, 1989, & JP-A-2 63 226, 990, Sep. 21, 1988, H. Imai, "Light Logical Device".
Patent Abstracts of Japan, vol. 14, No. 269 (P-1059), Jun. 11, 1990, & JP-A-2 077 030, Mar. 16, 1990, M. Jinno, et al., "Optical Logic Circuit".
IEEE Journal of Quantum Electronics, vol. 24, No. 11, Nov. 1988, pp. 2153-2159, H. Kawaguchi, et al., "Tunable Optical-Wavelength Conversion Using an Optically Triggerable Multielectrode Distributed Feedback Laser Diode".

Affiliated with

Also associated with

Rating

Logic function generator using an optical transposition in a dis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Logic function generator using an optical transposition in a dis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Logic function generator using an optical transposition in a dis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1717693