VI Systems unveils a circular VCSEL chip array for sensing applications

Aug. 29, 2018
The multimode laser emitter can be combined with a multicore fiber developed by InPhoTech for fiber sensing.

Laser and photonic components maker VI Systems (Berlin, Germany) has unveiled a circular 850-nm-emitting multimode vertical-cavity surface-emitting laser (VCSEL) chip array with six emitters, providing 3.5 mW of continuous-wave (CW) optical output power per channel (total output power is 21 mW). The VCSELs are positioned on a circle with a diameter of 78 um, and each VCSEL channel is individually addressable from top contacts. The chip-size footprint is 750 x 500 µm.

For fiber-sensor applications, the VCSEL emitters can be coupled into a multicore fiber developed by the company InPhoTech (Warsaw, Poland) and tailored for the VCSEL array.

InPhoTech will exhibit the device at the European Conference on Optical Communication (ECOC) in booth #373 from Sep 24 – 26, 2018 in Rome, Italy. VI Systems will exhibit the device in booth #4580 at the SPIE Photonics West conference and exhibition from Feb 5-7, 2019 in San Francisco, CA.

VI Systems is a fabless developer and manufacturer of components for optical communications. For more info, see

InPhoTech creates custom photonic devices in response to the current demands of industry. InPhoTech carries out research and development of photonic systems and components that serve a wide range of research and industrial applications, including sensing, monitoring, medicine, defense, telecom, and light sources. For more info, see

Source: VI Systems

About the Author

John Wallace | Senior Technical Editor (1998-2022)

John Wallace was with Laser Focus World for nearly 25 years, retiring in late June 2022. He obtained a bachelor's degree in mechanical engineering and physics at Rutgers University and a master's in optical engineering at the University of Rochester. Before becoming an editor, John worked as an engineer at RCA, Exxon, Eastman Kodak, and GCA Corporation.

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