Method and system for channelization and down conversion of wide

Details Method and system for channelization and down conversion of wide Method and system for channelization and down conversion of wide

1998-01-02

2000-10-24

Chan, Jason

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359154, 359159, H04B 1000

Patent

active

061376124

ABSTRACT:
The invention describes a method and system for channelization through the application of a weighted chirp pulse. The impulse response of a desired filter weighting is applied to the output of a chirp pulse generator (FIG. 1, 150). The resulting weighted chirp pulse is then applied to the a first columnar Bragg cell (80) while an unweighted chirp pulse is applied to a second columnar Bragg cell (90). A modulated energy beam (55) is then allowed to pass through both Bragg cells. The resultant spatially dispersed energy beam (95) is then applied to lens (120) and projected onto a detector array (130). The detector array (130) then extracts the subscriber transmitted information from the projected interference pattern.

REFERENCES:
patent: 4699466 (1987-10-01), Brandstetter et al.
patent: 5105380 (1992-04-01), Owechko
patent: 5363221 (1994-11-01), Sutton et al.

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