Coherent Introduces Next-Generation Polarization-Maintaining Optical Fiber

Rhea-AI Summary

Coherent (NYSE: COHR) announced on October 28, 2025 the launch of a next‑generation polarization‑maintaining optical fiber, model PLMA‑EYDF‑25P/300‑XPH‑11FA, engineered for narrow‑linewidth and single‑frequency 1550 nm amplifiers.

The fiber features a larger mode effective area, improved polarization maintenance, reduced non‑linear effects, greater power scalability, low 1 µm ASE noise, and a matched passive fiber PLMA‑GDF‑25/300 to maximize beam quality and polarization extinction ratio. Target applications include long‑range LIDAR for wind energy and air‑traffic sensing, high‑precision materials processing, quantum technology, medical lasers, and scientific research.

SAXONBURG, Pa., Oct. 28, 2025 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in photonics, today announces the launch of its next generation polarization-maintaining optical fiber, engineered to deliver superior performance and reliability for the high-performance fiber laser market.

Also known as PLMA-EYDF-25P/300-XPH-11FA, it is designed to significantly enhance the performance, reliability and power scalability of narrow-linewidth and single frequency 1550 nm amplifiers. Such systems are particularly suited for long range LIDAR applications in rapidly growing markets such as wind energy and air-traffic advanced sensing.

This innovative product features a larger mode effective area and enhanced polarization maintaining performance, which effectively mitigates non-linear effects and enables greater power scalability. It delivers superior pointing stability, along with low 1 µm ASE noise. When paired with its matched passive fiber (PLMA-GDF-25/300), this new fiber maximizes beam quality and polarization extinction ratio. This new product represents a major advancement in fiber laser technology, addressing the critical need for accessible, high performance narrow line width 1550 nm fiber lasers.

"We are excited to introduce this cutting-edge PLMA fiber to the market," said Dr. Clemence Jollivet, Sr. Director, General Manager of the Fiber Division at Coherent. "By leveraging our advanced material science, waveguide design, and manufacturing expertise, we have developed a product with a best-in-class doped core material. It marks a significant leap forward in laser technology, offering customers the superior performance and reliability required for their most demanding applications."

This new PLMA fiber is ideal for a wide range of other applications, including high-precision materials processing, advanced long range LIDAR systems, quantum technology applications, medical laser systems, and scientific research.

Coherent is committed to providing its customers with the highest quality optical fiber solutions. This new PLMA fiber is the latest example of the company's dedication to innovation and excellence.

About Coherent  

Coherent 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. 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/3c84700d-70d8-4d8b-bfb3-b23556a68b82

FAQ

What did Coherent (COHR) announce on October 28, 2025?

Coherent announced a new polarization‑maintaining optical fiber, PLMA‑EYDF‑25P/300‑XPH‑11FA, optimized for 1550 nm narrow‑linewidth amplifiers.

How does the new COHR PLMA fiber improve 1550 nm amplifier performance?

The fiber offers a larger mode effective area, enhanced polarization maintenance, reduced non‑linear effects, and low 1 µm ASE noise to enable greater power scalability.

Which applications does Coherent say the new PLMA fiber targets?

Coherent lists long‑range LIDAR (wind energy, air‑traffic sensing), high‑precision materials processing, quantum technology, medical lasers, and scientific research.

What is the matched passive fiber for COHR's new PLMA product?

The matched passive fiber is PLMA‑GDF‑25/300, designed to maximize beam quality and polarization extinction ratio when paired with the active fiber.

Will the new COHR PLMA fiber help with power scalability in fiber lasers?

Yes. Coherent states the fiber's larger mode area and polarization performance mitigate non‑linear effects and enable greater power scalability.

How should investors interpret Coherent's product launch for COHR stock?

The announcement highlights a technical product advancement in photonics for 1550 nm systems; it describes potential market applications but does not include financial metrics or commercial commitments.