NeoPhotonics Intros Coherent Mixe, DQPSK Demodulator for Optical Transmission

NeoPhotonics reportedly announced that it will be introducing the photonic integrated circuit or PIC based Coherent Mixer for 40 and 100 Gbps optical transmission systems at an upcoming conference in Vienna next week.

 

Company sources said that coherent mixers enable ultra high-rate optical transmission by adding more information about the amplitude and phase of the received optical signal over intensity-level receivers. This will allow the transmission of multiple bits in each optical data pulse.

 

The Coherent Mixer product provides advanced demodulation capabilities which helps analyze the polarization state and optical phase of a phase-modulated signal with respect to an optical reference. This helps in the recovery of phase-polarization constellation for Dual Polarization Quadrature Phase Shift Keyed data transmission.

 

NeoPhotonics (News - Alert) sources said that the new Coherent Mixer does not require power and it operates across the C or L band and is based on planar integration using high volume semiconductor production techniques.

 

The company also announced the availability of its demodulator for Differential Quadrature Phase Shift Key or DQPSK data transmission. This demodulator comprises of two PIC integrated Delay Line Interferometers which offer in-phase and quadrature analysis of differentially phase-encoded signals, the demodulator is also optimized to be less sensitive 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,” Vice President of Engineering for NeoPhotonics Wupen Yuen said in a statement. “Only photonic integrated circuits provide the high performance, compact size, temperature range and volume production capability required for these next generation products.”

 

NeoPhotonics plans to exhibit the new products at the conference, along with other optical components and telecom transceiver products in SFF, SFP and XFP form factors.

 

The company develops and manufactures PIC based components, modules and subsystems required in telecommunication networks. It integrates active semiconductor, passive PLC and MEMS multi-dimensional switching functions in a single product. This is made possible by the nanomaterials used and the nanoscale design and fabrication technology employed, the company said.