The NRZ transmitter module consists of InP Mach Zehnder Modulator and conventional Distributed Feed-Back (DFB) laser. The internal thermal and power control make the wavelength and optical power. The Optical Reference Transmitter ModBoxes are a flexible and efficient Electrical to Optical converter. And PAM4 performance is an option available upon request. And PAM4 performance is an option available upon. Yikun Chang, Abishek Manian, Long Kong, and Behzad Razavi Electrical Engineering Department, University of California, Los Angeles, CA Abstract— A wireline transmitter with 2-tap feedforward equalization achieves more than a two-fold improvement in the power efficiency through the use of a new.