1.6 Gb/s per channel parallel optic modules

W. L. Gore announces its nLIGHTEN 1.6 Gbps parallel optic modules. The modules are designed to meet the higher bandwidth demands of today's scalable networking systems. The modules are 12-channel 850 nm VCSEL-based parallel optical links that transfer an aggregate bandwidth of 19.2 Gb/s (1.6 Gb/s/channel) up to 300 meters while occupying less than 20 mm of board width. The devices are compatible with Gore's Flex-lite fiber optic ribbon interconnects or with standard FDDI-grade 62.5 mm multimode ribbon fiber.
W. L. Gore & Associates
www.gore.com

Transimpedance fiber optic amplifier

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Raytheon introduces a high-speed transimpedance amplifier (TIA) for 40 Gb/s (OC768) fiber optic systems. Designated as the RMLA00400, the TIA is used in conjunction with a photodetector to convert optical signals into a voltage output or as a general-purpose, low-noise wideband gain stage. Key features include a 40 GHz bandwidth, low group delay and power dissipation of 450 mW. The unit is available on a 3.71 mm × 1.70 mm chip. Built on the mHEMT process, it achieves the high electron velocity normally only found in InPHEMTs, without the additional expense and manufacturability issues associated with InP substrate-based devices. The device exhibits the precise linearity, gain and noise performance needed for such applications as wide bandwidth amplifiers (TWAs) for fiber optic receivers, low-noise millimeter wave receivers and automotive radar systems at 77 GHz and above.
Raytheon RF Components Division
http://www.raytheonrfc.com

40 Gb/s BER test platform

Agilent Technologies has added a 10.8 Gb/s generator and analyzer module to its parallel bit error ratio testing (ParBERT) 81250 43G portfolio. With these new modules, the platform is able to stimulate and analyze both the parallel and serial sides of 16:1 and 4:1 OC-768 (STM-256) and OC-192 (STM-64) multiplexers and demultiplexers (MUX/deMUX). The Sonet Framer Interface (5 SFI-5) standard is used with 40 Gb/s devices running 16 inputs at approximately 2.5 Gb/s for automatic phase alignment of input signals. It requires 16 data channel inputs and a “17^th” channel, which acts as a conduit for carrying information for alignment. It has the ability to support SFI-5 with a 17^th tributary channel and as many as 64 channels at 2.7 Gb/s.
Agilent Technologies
www.agilent.com