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Coherent Introduces 100G Transimpedance Amplifiers for 400G/800G Optical Transceivers

1. COHR launches 56 Gbaud PAM4 TIA for 400G and 800G optical transceivers. 2. The CHR1065 TIA offers superior receiver sensitivity for longer optical reach. 3. At 227 mW per channel, it improves efficiency in power-constrained datacenters. 4. This product reinforces COHR's position in the fiber-optic ASIC market. 5. Future products include 112 GBaud and 224 GBaud TIA amplifiers.

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Why Bullish?

The introduction of advanced technology often positively influences stock prices, as seen with tech launches boosting companies like NVIDIA. The strong performance metrics suggest increased adoption, driving higher demand for COHR products.

How important is it?

The launch aligns with industry trends toward higher data rates, making COHR a competitive player. The technology could catalyze longer-term partnerships and increased sales, significantly impacting market perception positively.

Why Long Term?

As COHR gears up for future products, market positioning will enhance its revenue stream over time. Tech advancements like this generally yield long-term gains as industry reliance grows.

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SAXONBURG, Pa., July 24, 2025 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in photonics, announces the addition of the 56 Gbaud PAM4 transimpedance amplifier (TIA) to its open-market ASIC portfolio. Designed for next-generation 400G and 800G optical transceivers, this new CHR1065 product family combines outstanding performance with practical system-level advantages. Its industry-leading 2 µARMS input-referred noise enables superior receiver sensitivity for longer optical reach, while high linearity up to 2.5 mA ensures reliable performance across varying link budgets. At just 227 mW per channel, its power efficiency supports dense deployments in power-constrained datacenters, reducing operational costs and cooling demands. The 750 µm optical pitch, advanced monitoring via I2C, and seamless four-device integration make it ideal for compact DR, FR, and LR module designs. “Coherent continues to extend its long-standing fiber-optic ASIC portfolio and offer selected products to the open market,” said Dr. Beck Mason, Executive VP of Semiconductor Devices at Coherent. “The CHR1065 is the latest example of this, soon to be followed by 112 GBaud ASICs and 224 GBaud thereafter.” The CHR1065 is available now as a wire-bondable bare die and has been fully released to volume production. Engineering samples are shipping in 25-piece waffle packs. Building on decades of deployment in Coherent optical transceivers, this TIA is backed by proven design reliability and JEDEC-standard lifetime testing. For more information or to request samples, visit Transimpedance Amplifiers (TIA) | Coherent or contact your Coherent sales representative. About CoherentCoherent is the global photonics leader. We harness photons to drive innovation. Industry leaders in the datacenter, communications, and industrial markets rely on Coherent’s world-leading technology to fuel their own innovation and growth. Founded in 1971 and operating in more than 20 countries, Coherent brings the industry’s broadest, deepest technology stack; unmatched supply chain resilience; and global scale to help its customers solve their toughest technology challenges. For more information, please visit us at coherent.com. Media Contact: innovations@coherent.com A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/7f01a65c-746b-4f23-aaab-998b265087b8

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