Patent ID: 8837951
Filing Date: 2014-09-16
Classification: H04B,H04J

Abstract:
1. A four-carrier optical wavelength division modulator (WDM) transponder/transceiver, comprising: at least one electronic input device to convert 10×10G electrical interface to four transmit lanes of 25˜28 Gb/s differentially-encoded NRZ signals; four driver amplifiers to amplify the four lanes of 25˜28 Gb/s NRZ signals, respectively, wherein the group delay variation of each amplifier is low enough so as not to distort the 25˜28 Gb/s NRZ signals; four electronic low-pass filters receiving the amplified signals and serving as duobinary encoders; four 10 Gb/s-class optical transmitters converting the encoded signals into optical signals having four different wavelengths; four 25˜28 Gb/s optical receivers; and at least one electronic output device to convert four receive lanes of 25˜28 Gb/s NRZ signals to a 10×10G electrical interface.