News: Optoelectronics
20 November 2024
Coherent launches high-speed InP photodiodes for 1.6T transceivers
Materials, networking and laser technology firm Coherent Corp of Saxonburg, PA, USA has announced the production release of high-speed indium phosphide (InP) photodiodes.
Designed for use in the next generation of 800G and 1.6T transceivers with 200Gb/s PAM4 optical lanes, and available in both singlet and 1x4 array configurations with integrated lenses, they provide efficient optical coupling and compatibility with all major 4-channel and 8-channel transimpedance amplifiers (TIA).
Featuring a wide optical response from 900nm to 1650nm and high responsivity at 1310nm, the RoHS-compliant devices have a 3dB bandwidth greater than 50GHz, a low capacitance of 50fF, and low dark current. The photodiode arrays are available in two different flip-chip pad configurations for compatibility with high-performance TIAs and are engineered to meet the demanding requirements of longwave fiber-optic communication systems.
“These photodiodes represent a major advancement in reliability and performance for data-center applications,” says Kou-Wei Wang, vice president, InP DML & Photodiodes at Coherent. “Their high bandwidth and excellent optical characteristics allow our customers to develop high-speed optical transceivers with an additional performance margin.”
The high-speed photodiodes are currently available in sample quantities, with general availability planned for first-quarter 2025.
