GigOptix Inc. of San Jose, Calif., has secured a $1.8 million purchase order for its 100G Mach-Zehnder modulator (MZM) quad-driver, a customized version of the GX62451, for a Tier 1 telecom 100G dense wavelength division multiplexing networking system. The GX62451 100G dual-polarization quadrature phase shift keying (DP-QPSK) driver is a four-channel MZM designed for 100G DP-QPSK long-haul optical transmitters. The device is GPPO-connectorized and is plug-in-compatible with industry-standard 100G MZMs and multiplexors. The systems address the bandwidth demands generated by smartphones and cloud-based services. The order was scheduled for delivery during the first quarter of 2012, with additional orders to follow.