Apparatus and method for generating a 90° alternate phase optical pulsetrain
AssigneeLucent Technologies Inc.
InventorsDouglas M. Gill, Christi K. Madsen
Life of this patent
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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.
Claims20
An apparatus for generating a 90° alternate phase (AP) optical pulsetrain, comprising:
- 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
- an optical filter coupled to said phase-modulated optical signal generator and configured to 180° phase-shift selected ones of said carrier band and sidebands to generate said 90° AP optical pulsetrain.
A method of generating a 90° alternate phase (AP) optical pulsetrain, comprising:
- generating a phase-modulated optical signal having a carrier band and sidebands phase-shifted relative thereto by multiples of 90°;
- and
- 180° phase-shifting selected ones of said carrier band and sidebands.
An apparatus for generating a 90° alternate phase (AP) optical pulsetrain, comprising:
- a phase-modulated optical signal generator including an electro-optical phase, said 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
- an optical filter coupled to said phase-modulated optical signal generator and configured to 180° phase-shift selected ones of said carrier band and sidebands to generate an 90° AP optical pulsetrain having a pulse frequency of about 40 GHz.
Dependencies are inferred from the claim text.