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The OIF launches projects for coherent modulators/receivers, approves 100 Gbit/s Ias
Announced Date: 5/7/2015 Published Date: 5/8/2015

The Optical Internetworking Forum announced that following its second quarter meeting it has commenced initial work on technical specifications for high bandwidth optical modulators and receivers for coherent applications, and that its members have also approved implementation agreements (IA) for 100 Gbit/s applications.

The OIF also noted that during the recent meeting several technical committees convened to continue the forum's work on the FlexEthernet and common electrical interface (CEI) projects launched in 2014. In addition, following successful technical demonstrations in 2014, OIF members held initial discussions regarding an SDN-focused demonstration for 2016.

High bandwidth optical modulators/receivers

The OIF stated that the current coherent ASIC baud rate is no longer sufficient to carry the information needed to define the frequency response requirements for coherent electro-optical (EO) components given the industry's adoption of preconditioning.

To address this need, the High Bandwidth Polarisation Multiplexed Quadrature Optical Modulator project has been established to enable coherent electro-optical modulation of a wider optical spectrum per optical carrier as defined in terms of frequency response.

In addition, the Intradyne Coherent Receiver project proposes an improved RF high frequency response designed to enable coherent electro-optic demodulation of a wider optical spectrum per optical carrier.

Approved 100 Gbit/s IAs

The newly approved IA for Integrated Dual Polarisation Micro-Intradyne Coherent Receivers targets coherent 100 Gbit/s PM-QPSK applications with nominal symbol rates up to 32 GBaud in a CFP2 form factor. The IA also defines a low speed electrical interface incorporating an SPI bus for control of the TIAs in the coherent receiver.

The new IA for Generation 2.0 100 Gbit/s Long-Haul DWDM Transmission Module-Electromechanical is designed for optical line interface applications. The IA reduces the size and power consumption requirements by defining a 4 x 5 module that can be used for 100 Gbit/s long-haul DWDM transmission applications.