Patent ID: 7130545
Filing Date: 2006-10-31
Classification: H04L

Abstract:
1. An electro-optic clock recovery circuit comprising: an electro-optic modulator circuit comprising a Mach-Zehnder modulator; a balanced photodetector circuit operatively coupled to said modulator circuit, and comprising at least one slow photodetector series coupled to a second photodetector; a buffer circuit; a voltage controlled oscillator operatively coupled to said photodetector circuit through said buffer circuit; and at least one frequency multiplier operatively coupled to said voltage controlled oscillator and said electro-optic modulator circuit, wherein said electro-optic modulator circuit is operatively coupled to said voltage controlled oscillator circuit in a phased lock loop, receives an optical time division multiplexed data stream and samples the entire optical data stream, wherein said voltage controlled oscillator comprises a voltage controlled oscillator frequency and wherein the at least one frequency multiplier comprises a harmonic of said voltage controlled oscillator frequency.