Phase chip frequency-bins optical code division multiple access

US7729616B2 · kind B2 · utility

Assignees

• Telcordia Technologies, Inc. · US
• University of Central Florida · US

Inventors

• Shahab Etemad · Hackettstown, US
• Paul Toliver · Tinton Falls, US
• Janet Jackel · Holmdel, US
• Ronald Charles Menendez · Chatham, US
• Stefano Galli · New York, US
• Thomas Banwell · Howell, US
• Peter J. Delfyett · Orlando, US

Key dates

• Filing date: Feb 18, 2005
• Grant date: Jun 1, 2010
• Expiry date: Feb 13, 2028

Classification

• Technology area (CPC H): Electricity
• CPC primary: H04B10/505
• WIPO field: Telecommunications
• WIPO sector: Electrical engineering

Abstract

Apparatus and system for transmitting and receiving optical code division multiple access data over an optical network. The apparatus comprises a spectral phase decoder for decoding the encoded optical signal to produce a decoded signal, a time gate for temporally extracting a user signal from the decoded signal, and a demodulator that is operable to extract user data from the user signal. The system preferably comprises a source for generating a sequence of optical pulses, each optical pulse comprising a plurality of spectral lines uniformly spaced in frequency so as to define a frequency bin, a data modulator associated with a subscriber and operable to modulate the sequence of pulses using subscriber data to produce a modulated data signals and a Hadamard encoder associated with the data modulator and operable to spectrally encode the modulated data signal to produce an encoded data signal.