NeoPhotonics Announces General Availability and Volume Shipment Of Coherent Mixers For 40 and 100 Gbps Receivers

Specifically, the Coherent Mixer product provides advanced demodulation to analyze the state-of-polarization and optical phase of a phase-modulated signal relative to an externally supplied optical reference, enabling recovery of the phase-polarization constellation for Dual Polarization Quadrature Phase Shift Keyed (DP-QPSK) data transmission. The NeoPhotonics Coherent Mixer requires no power, operates across the C or L band and is based on planar integration, utilizing high volume semiconductor production methodologies.

At the same time, NeoPhotonics announced the initial availability of its demodulator for Differential Quadrature Phase Shift Key (DQPSK) data transmission. NeoPhotonics’ DQPSK demodulator consists of two PIC integrated Delay Line Interferometers (DLIs), providing in-phase and quadrature analysis of differentially phase-encoded signals. To accommodate the unpredictable and varying nature of the received signal polarization, NeoPhotonics’ DQPSK demodulator has been optimized such that the performance exhibits extremely low sensitivity to polarization variations.

Our photonic integrated circuit design and fabrication capabilities have enabled us to achieve both the high optical performance required for these products and to ramp production volumes in record time. Only photonic integrated circuits provide the high performance, compact size, temperature range and volume production capability required for these next generation products, said Wupen Yuen, Ph.D., Vice President of Engineering for NeoPhotonics.