TOKYO, March 7, 2018Mitsubishi Electric Corporation (TOKYO: 6503) announced today that it will begin shipping a laser-diode transmitter optical subassembly (TOSA) capable of supporting 400Gbps optical transmissions on April 1. The new TOSA, when used in a set of two, can be used in the industry's first electro-absorption modulated laser diode (EML)-TOSA solution for IEEE 400GBASE-LR8 applications. The device will be displayed at the Optical Fiber Communication Conference and Exhibition 2018 (OFC) in San Diego, California from March 13 to 15.

Compact Integrated 400Gbps EML-TOSA FU-402REA-41 (top) and FU-402REA-42 (bottom)

In response to the demand for increasing data capacity, Mitsubishi Electric's new laser-diode TOSA offers 400Gbps transmission capability for large-capacity communication facilities (data centers, etc.) and high-speed optical transmission networks.

Product Features

Large-capacity, high-speed 400Gbps communication
- Multiple transmission of eight wavelengths by two TOSAs
- 50Gbps/wavelength (400Gbps in eight wavelengths) achieved with 4-level pulse-amplitude modulation (PAM4) method
- Capable of 10km transmission thanks to EML chip featuring high extinction ratio and high power
- Package size complies with common specifications for CFP8 optical transceivers (when using two TOSAs)

Sales Schedule

Product Model Features Shipment date
Compact Integrated 400Gbps EML-TOSA FU-402REA-41
(for short wavelengths)
- EML for 1273.54, 1277.89, 1282.26 or 1286.66nm wavelength
- LC receptacle
April 1, 2018
(for long wavelengths)
- EML for 1295.56, 1300.05, 1304.58 or 1309.14nm wavelength
- LC receptacle

Note that the releases are accurate at the time of publication but may be subject to change without notice.