ETRI to show 43G ROSA, 8×10G TOSA, GPON reach extender at OFC 2014

Korea’s Electronics and Telecommunications Research Institute (ETRI) has developed three new products that it plans to unveil at OFC 2014 next month: a TO-can type 43G receiver optical sub-assembly (ROSA), an 8×10G transmitter optical sub-assembly (TOSA), and a 16-channel frame-based GPON reach extender.

The 43G ROSA uses a TO-can package with a flexible printed circuit board (PCB) interface. It is compatible with the XLMD2 MSA and suitable for serial 40 Gigabit Ethernet (40GBASE-FR), 40G Very Short Reach (VSR), OC-768/STM-256, and OTU3 applications. The device has an impedance-matched connection scheme between the TO-can package and the PCB for support of high-speed links up to 43 Gbps. Compared to the commercially available butterfly packaged 40G ROSA, the footprint is 85% smaller in volume and the manufacturing cost is dramatically reduced, while maintaining equivalent performance, ETRI asserts.

The patented 8×10G TOSA, composed of an L-Band 100-GHz spaced vertical-cavity surface-emitting laser (VCSEL) array and AWG mux, fits into the CFP optical transceiver. ETRI asserts that it is cost-effective and energy efficient (< 1.5 W) compared to direct or externally modulated lasers, and suitable for NG-PON2 (TWDM-PON and point-to-point WDM variants) for the application of data center and wireless front-haul.

A first in the industry according to ETRI, the 16-channel GPON reach extender is a frame-based approach to increase the link budget between an optical line terminal (OLT) and optical network units (ONUs), with backward compatibility covering the ITU-T G.984.6 standard. ETRI says the platform also supports wavelength conversion and upstream burst mode-to-continuous mode conversion for extending overall fiber link length and split ratio (1:128 at 60 km), providing flexibility for a practical deployment of long-distance GPON with increased link budget of 59 dB.

ETRI plans to display these new technologies during the OFC 2014 exhibition in San Francisco at booth #4654. The non-profit research organization is ready to transfer them to any interested industrial manufacturer.

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