Compact optical subsystems for telecoms and LiDAR

Compact optical subsystems for telecoms and LiDAR

New Products |
By Nick Flaherty

Coherent has launched a range of ultracompact optical amplifiers that are 2.5mm high for high-speed telecom transceivers and LiDAR sensors.

The family includes a micro-pump laser, a variable optical attenuator, and hybrid passive assemblies, all with a low profile of less than 2.5mm.

The components are available individually and as custom assemblies, including with erbium- and erbium/ytterbium-doped fibre. They come in standard or extended temperature ranges, and with bend-insensitive fibre input and output on a single side. The micro-pump laser is available with an output power of up to 400 mW.

“We have achieved a level of miniaturization that is unmatched in the industry with a complete set of components that enable optical amplifiers to be easily embedded in small modules such as pluggable high-speed transceivers, in the very small QSFP-DD form factor, and miniature automotive LiDAR systems,” said Dr Sanjai Parthasarathi, Chief Marketing Officer. “Leveraging highly automated assembly, these components will scale cost-competitively with the rapidly growing demand.”

The company, formed from the merger of II-VI and Coherent last year, has also lunched the first dual-chip pump laser module with up to 1000 mW of output power per fibre in a 10-pin butterfly package.

The dual-chip pump laser module enables a new class of optical amplifiers and amplified reconfigurable optical add/drop multiplexer (ROADM) line cards that have greater bandwidth, functionality, and transmission reach for data centre applications.

“What is uniquely differentiated about the new Coherent dual-chip pump laser module is that it embeds two next-generation high-power pump laser diodes in a small-form-factor 10-pin butterfly package,” said Dr Richard Smart, Senior Vice President, ROADM products.

“Coherent was first to market with dual-chip pump laser modules in 2014, and we continue to show our advanced technology leadership by achieving the highest power in the smallest form factor across our pump laser module products,” he said.

The dual-chip pump laser modules are semi-cooled and utilize highly reliable laser diodes that are available in a range of operating power levels up to 1000 mW per fiber, with the flexibility of assignable output power to each fiber.

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