The ModBox-850nm-28Gbps-NRZ from Photline Technologies is an optical reference transmitter designed for testing 100GbE systems and components. The product is available from Laser Components.
This is an optical modulation unit that generates NRZ optical data streams at data rates up to 28Gb/s, and incorporates a 850nm laser source, a modulation stage based on a LiNb0 Mach-Zehnder modulator coupled with a 40Gb/s RF driver and an automatic bias control circuitry. It can also receive an optional photodetection stage.
Photline says the ModBox-850nm-28Gbps-NRZ provides R&D and production engineers with state of the art performance and the peace of mind of a turnkey instrument. It can be used as a reference transmitter for 100GbE conformance testing in optical telecommunications laboratories and in production test beds.
ModBoxes reference transmitters are also available for alternative modulation formats and wavelengths (1310nm, 1550nm, 1060nm).