Patent ID: 7702246
Filing Date: 2010-04-20
Classification: H04Q

Abstract:
1. An optical payload/label transmitter apparatus comprising: a laser source; a Mach-Zehnder Modulator for generating a phase encoded payload signal in accordance with a payload drive voltage, by phase modulating an input light received from the laser source at an input optical port of the Mach-Zehnder Modulator; and the Mach-Zehnder Modulator for generating a label in accordance with a label encoding, by imposing an intensity modulation on the phase encoded payload signal; wherein the Mach-Zehnder Modulator generates the labeled phase encoded payload signal at an output optical port of the Mach-Zehnder Modulator, such that the phase encoded payload signal has phase-shift-keying (PSK) modulation format wherein the Mach-Zehnder Modulator is biased at null and the payload drive voltage swing is 2V