LASER COMPONENTS’ QPSK-LN-40 is a modulator specially designed for QPSK 40 Gb/s optical transmission. It is based on a dual high bandwidth and low Vp Mach-Zehnder architecture, implemented on a proven and high stability x-cut substrate.
Quadratic Phase Shift Keying transmission format is beneficial for medium and long haul 40 Gb/s fibre transmission thanks to a reduced number of needed photon per bit and an unparalleled tolerance to chromatic dispersion, PMD and nonlinearities.