TriQuint Semiconductor introduces fiber optic modulator driver

Jan 15, 2002 – Hillsboro, OR – TriQuint Semiconductor Inc. has introduced the TGA4802 modulator driver amplifier for high-speed optical networking applications.

According to TriQuint, this broadband amplifier is targeted for the OC192/STM64 (10Gb/s) telecommunications market. The TGA4802 is easily capable of running bit rates through 12.5Gb/s, providing overhead room for the most comprehensive forward error correction (FEC) algorithms. FEC allows systems to automatically compensate for fiber anomalies, TriQuint said. The TGA4802 is suited for dense wave division multiplexed (DWDM).

The TGA4802 is an option for 12.5Gb/s optical return-to-zero (RZ) applications. Driving a single optical modulator with electrical inverted-return-to-zero (IRZ) data eliminates the need for an additional clock driven modulator, thereby reducing system cost and complexity. TriQuint said. The amplifier combines performance-enhancing features such as high gain with high voltage drive and broad bandwidth while providing improved power efficiency.

The TGA4802 may also be used as a low noise small signal 15dB gain block for data rates up to 12.5Gb/s. Flexible operation as either a receive amplifier or transmit modulator driver provides design opportunities over a wide range of fiber optic applications including, Long-Haul, Medium-Haul and Metro fiber systems, TriQuint said. The ability to efficiently drive lithium niobate, gallium arsenide, and indium phosphide mach-zehnder modulators over a wide voltage range enables optimization of optical performance.

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