News Article

Finisar Introduces Smallest Coherent Optical Assembly


First live demonstration of fully integrated, miniature transmitter and receiver assembly shows the 32Gbaud device transmitting and receiving data at 200 Gb/s using DP-16QAM modulation

Finisar has introduced a new product family, complementing its line of coherent components and ACO (Analogue Coherent Optics) transceivers.

The family, called the Integrated Tunable Transmitter and Receiver Assembly (ITTRA), is said to be industry's smallest fully integrated coherent optics assembly.

It is designed for easy customer integration into coherent line cards or DCO (Digital Coherent Optics) transceivers, enabling customers to accelerate their time to market and reduce program and development costs.

The ITTRA will be demonstrated at OFC from March 13-15 at the San Diego Convention centre.

In a footprint that is 70 percent smaller than the size of a CFP2 module, the ITTRA provides the same functionality as a CFP2-ACO. All key building blocks of an ACO interface (tunable laser, optical amplifier, modulators, drivers, coherent mixer, photodiode array, and TIAs) are incorporated in a single optical sub-assembly, which is combined with a miniature controller board that provides customers a standardised management interface.

Since the ITTRA is a fully calibrated and tested assembly instead of a disaggregate set of components, it yields operational cost savings for the line card or module integrator because test times of the end product are greatly reduced.

The demonstration at OFC 2018 shows the 32Gbaud ITTRA transmitting and receiving data at 200 Gb/s using DP-16QAM modulation. The product will be sampling in the second quarter of 2018.

In addition, Finisar is demonstrating the WaveShaper A Series of Programmable Optical Processors with the newly released WaveShaper App revision 1.3. This software supports arbitrary power splitting on up to 16 ports with ratios of up to 100 to 1.

Finisar will also provide a technology demonstration of a WaveShaper processor covering the extended C+L band with a total wavelength range larger than 100nm. Arbitrary filtering of attenuation and phase is supported across the entire range.

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