Coherent Launches High-Speed Photodiodes for 1.6T Transceivers

Rhea-AI Summary

Coherent Corp. (NYSE: COHR) has announced the production release of high-speed indium phosphide (InP) photodiodes for next-generation 800G and 1.6T transceivers. The devices feature 200 Gb/s PAM4 optical lanes and are available in singlet and 1x4 array configurations with integrated lenses. Key specifications include a 3 dB bandwidth exceeding 50 GHz, low capacitance of 50 femtofarads, and wide optical response from 900 nm to 1650 nm. The photodiodes are designed for longwave fiber-optic communication systems and are compatible with major 4-channel and 8-channel transimpedance amplifiers. Sample quantities are currently available, with general availability planned for Q1 2025.

Positive

• Launch of new high-speed photodiodes for next-generation transceivers
• Product compatibility with major industry TIA solutions
• Advanced technical specifications meeting data center requirements

Negative

• Product not yet generally available until Q1 2025
• Currently to sample quantities only

Insights

Tech Expert

The launch of these high-speed InP photodiodes represents a significant technological advancement in optical networking infrastructure. The 50 GHz bandwidth and 50 fF capacitance specifications are impressive technical achievements that will enable next-generation 800G and 1.6T optical transceivers. These components are important for data centers to handle increasing bandwidth demands.

The dual configuration options (singlet and 1x4 array) with integrated lenses provide flexibility for different design architectures. The compatibility with major TIA platforms reduces integration barriers and speeds up time-to-market for transceiver manufacturers. The broad wavelength support (900-1650 nm) makes these photodiodes versatile for various optical communication applications.

While this product launch strengthens Coherent's competitive position in the optical components market, revenue impact won't be significant until full production ramp in Q1 2025. The timing aligns well with the industry's transition to higher-speed optical networks.

PITTSBURGH, Nov. 18, 2024 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in high-performance optical networking solutions, 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 200 Gb/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 900 nm to 1650 nm and high responsivity at 1310 nm, these RoHS-compliant devices have a 3 dB bandwidth greater than 50 GHz, a low capacitance of 50 femtofarads (fF), 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,” said 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.”

These high-speed photodiodes are currently available in sample quantities, with general availability planned for Q1 2025.

About Coherent
Coherent empowers market innovators to define the future through breakthrough technologies, from materials to systems. We deliver innovations that resonate with our customers in diversified applications for the industrial, communications, electronics, and instrumentation markets. Coherent has research and development, manufacturing, sales, service, and distribution facilities worldwide. For more information, please visit us at coherent.com.

Media Contact: innovations@coherent.com

FAQ

What are the key features of Coherent's (COHR) new photodiodes?

Coherent's new InP photodiodes feature 200 Gb/s PAM4 optical lanes, 3 dB bandwidth >50 GHz, 50 fF capacitance, and wide optical response from 900-1650 nm, designed for 800G and 1.6T transceivers.

When will Coherent (COHR) make the new photodiodes generally available?

Coherent plans to make the new high-speed photodiodes generally available in Q1 2025, though samples are currently available.

What configurations are available for Coherent's (COHR) new photodiodes?

The photodiodes are available in both singlet and 1x4 array configurations with integrated lenses, offering two different flip-chip pad configurations for TIA compatibility.