VI Systems launched test devices for PAM (pulse amplitude modulation) optical data transmission over multimode fiber. The fiber coupled test modules is suitable for data transmission using a 4-PAM or an 8-PAM encoding scheme for data rates of more than 64 Gbit/s.
BERLIN, Germany, March 8, 2016
VI Systems GmbH introduces the fiber coupled 850nm vertical cavity surface emitting laser (VCSEL) transmitter module VM64-850M for data rates of up to 80 Gbit/s. The transmitter module features a V-connector for the electrical input signal and for the optical output a 50/125 multi mode fiber which is terminated with a standard FC/PC connector. The left picture below shows the module. The picture on the right shows an optical eye diagram at 32 Gbaud (64 Gbit/s) in a back-to-back test configuration as tested by partners at the Heinrich Hertz Institute in Berlin.
See the demonstration of the high-speed measurement of the 4-PAM module below.
The VM64-850M transmitter module is designed for test setups aimed at development of advanced short reach optical interconnects. The module footprint size is 62.5 mm x 16.7 mm. The height of the module is specified as 8 mm. The fiber cable length is typically 1 meter.
The maximum optical output power is specified at 4 mW. The typical operating voltage is 2.4 V.
VI Systems will present an update on the technology achievements at the OFC 2016 conference & exhibition from March 22-23, 2016 in Anaheim, CA, including the 2.2km NRZ transmission over multimode fiber at 54 Gb/s. Details can be found at http://www.ofcconference.org/en-us/home/program-speakers/
VI Systems 64 Gbit/s PAM-4 VCSEL Module and eye diagram with 64 Gbit/s data-rate.
VI Systems GmbH
10623 Berlin, Germany
phone: +49 30 30 831 43 41
fax: +49 30 30 831 43 59