Apparatus and method for generating a 90° alternate...

Details Apparatus and method for generating a 90° alternate... Apparatus and method for generating a 90° alternate...

2006-02-21

2006-02-21

Epps, Georgia (Department: 2873)

Optical: systems and elements

Optical modulator

Light wave temporal modulation

C385S003000, C398S188000

Reexamination Certificate

active

07002724

ABSTRACT:
Various apparatus and methods for generating a 90° AP optical pulsetrain. In one embodiment, the apparatus includes: (1) a phase-modulated optical signal generator configured to generate a phase-modulated optical signal having a carrier band and sidebands phase-shifted relative thereto by multiples of 90° and (2) an optical filter coupled to the phase-modulated optical signal generator and configured to 180° phase-shift selected ones of the carrier band and sidebands to generate the 90° AP optical pulsetrain.

REFERENCES:
patent: 6760142 (2004-07-01), Leuthold et al.
patent: 6842125 (2005-01-01), Mauro et al.
A co-pending U.S. Appl. No. 10/099,077, filed Mar. 14, 2002, to Gill, et al., entitled “High-Bit-Rate Long-Haul Fiber Optic Communication System Techniques and Arrangements”; Currently Pending.

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