The Optical Internetworking has started work on technical specifications for high bandwidth optical modulators and receivers for coherent applications.
The utilized coherent ASIC Baud Rate is no longer sufficient information to define the frequency response requirements for coherent electro-optical (EO) components now that the industry has embraced the use of preconditioning. The High Bandwidth Polarization Multiplexed Quadrature Optical Modulator project enables coherent electro-optical modulation of a wider optical spectrum per optical carrier defined in terms of frequency response. The Intradyne Coherent Receiver project proposes an improved RF high frequency response that e
nables coherent electro-optic demodulation of a wider optical spectrum peroptical carrier.
OIF have also approved implementation agreements for 100G applications.
The IA for Integrated Dual Polarization Micro-Intradyne Coherent Receivers targets coherent 100G PM-QPSK applications with nominal symbol rates up to 32 GBaud in a CFP2 form factor. This IA also defines a low speed electrical interface incorporating an SPI bus for control of the TIAs in the coherent receiver.
The IA for Generation 2.0 100G Long-Haul DWDM Transmission Module-Electromechanical applies to optical line interface applications. The IA reduces the size and power consumption requirements by defining a 4×5 module that can be used for 100G long-haul DWDM transmission applications.
The OIF noted that work is continuing on the FlexEthernet and Common Electrical Interface (CEI) projects begun in 2014.
“Our members are working at full capacity right now,” said Karl Gass, of Qorvo and the OIF Physical and Link Layer Working Group vice chair, Optical. “With as many as 19 documents going to ballot this quarter alone we are completing technical work at an extremely fast pace. These two new electro-optical component projects will fill a gap in the line side component space, providing systems engineers more tools to increase channel capacity beyond 100Gb/s.”
