Method and apparatus for relative positioning of a frequency, in

Details Method and apparatus for relative positioning of a frequency, in Method and apparatus for relative positioning of a frequency, in

1992-01-24

1994-06-07

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359124, 359153, 359180, H04J 1402

Patent

active

053194896

ABSTRACT:
In a method of the invention an emission wave (F(2P-1)) which is to be positioned within the spectrum relative to an external wave (F(2P-2)B) is modulated. Said external wave is mixed with one of the side waves that results from said modulation (F(2P-1)A) and the emission wave is positioned in response to variations in the frequency of a beat signal (F(2P-2)BE) that results from said mixing. The invention applies in particular to implementing an optical fiber communications network.

REFERENCES:
patent: 4663596 (1987-05-01), Heeks
patent: 4989201 (1991-01-01), Glance
patent: 5132829 (1992-07-01), Tzeng
patent: 5161044 (1992-11-01), Nazarathy
patent: 5166569 (1992-11-01), Curran
K. Kikuchi, et al., "AM Sideband Injection Locking of Semiconductor Lasers . . . ", Globecom, 1987, vol. 1, Nov. 1987, Tokyo, JP, pp. 699-703.

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