25 July 2014

VI Systems awarded US patent for 40G VCSEL technology

VI Systems GmbH of Berlin, Germany (a fabless spin-off of the Technical University of Berlin and the A. F. Ioffe Physico-Technical Institute in St Petersburg, Russia) says that the US Patent and Trademark Office (USPTO) has issued a Notice of Allowance for a US patent application.

Patent number US 20130092896 A1 (‘Optoelectronic Device with a Wide Bandgap and Method of Making Same’) covers the material composition of optoelectronic devices including the firm’s ultra-high-speed 40Gbit/s vertical-cavity surface-emitting laser (VCSEL). The firm says that the patent is essential to protect its proprietary concept of ultra-high-speed VCSEL.

The invention pertains to semiconductor light-emitting devices for visible and infrared spectral ranges. It can hence also be applied to LEDs, targeting the bright red, orange, yellow or green spectral ranges.

For optical data communication, VI Systems offers engineering samples of its 40Gbit/s VCSEL at 850nm wavelength as bare die chips (part number V40-850C) or as fiber-coupled test modules. The modules are available in a package with a  V-connector but without a VCSEL driver chip (part number V40-850M) or with a built-in 40Gbit/s VCSEL driver and adaptor board for differential signal input through standard RF connectors (part number R40-850).

Tags: VI Systems VCSEL

Visit: www.v-i-systems.com