, CST Global adds 1490nm, 2.5Gb/s GPON lasers to standard product portfolio

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9 March 2018

CST Global adds 1490nm, 2.5Gb/s GPON lasers to standard product portfolio

© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.

III-V optoelectronic foundry Compound Semiconductor Technologies Global Ltd (CST Global) of Hamilton International Technology Park, Blantyre, near Glasgow, Scotland, UK (a subsidiary of Sweden’s Sivers IMA Holdings AB) says that its 1490nm, 2.5Gb/s distributed feedback (DFB) lasers for Gigabit passive optical network (GPON) applications have been beta sampled and are now available to order from its standard product portfolio.

The 1490nm laser transmits data downstream, from the optical line terminal (OLT) to the optical networking unit (ONU), positioned in the home or business premises. The transmission of data upstream, from the ONU to the OLT, is achieved using a 1310nm laser at either 1.25Gb/s or 2.5Gb/s data rate, which CST Global also produces within its standard product range.

“Production of 1490nm, 2.5Gb/s DFB lasers for GPON applications has become increasingly difficult due to an evolving, industry build-standard,” says Euan Livingston, VP sales & marketing. “We have successfully produced the 1490nm, GPON lasers, to the C++ specification, in a TO-can format. Additionally, we will support known good die on tape (KGDT) formats of these devices, if required,” he adds.

“GPON markets are growing worldwide and sales into developing markets like China and India, where we sold over 2 million units in 2017, are continuing to expand,” Livingston continues. “We identified the potential for 1490nm DFB lasers 18 months ago and invested in the staff, machinery and processes necessary to meet this escalating demand.”

Tags: CSTG

Visit: www.CSTGlobal.uk

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