Coherent Expands Pluggable Optical Line Systems Portfolio with Full C-Band Amplification to Enable AI Datacenter Networks

Coherent expands its POLS portfolio with a QSFP-based full C-band amplifier aimed at high-capacity AI and cloud interconnects.

Rhea-AI Summary

Coherent (COHR) launched an enhanced Pluggable Optical Line System (POLS) that delivers full C-band, high-power variable-gain amplification in a compact QSFP form factor for AI datacenter networks.

Optimized for 800G ZR/ZR+ digital coherent optics, the system supports up to 32 DWDM wavelengths over a single fiber pair, carrying up to 25.6 Tbps across links from 2 km to 200 km. The POLS integrates key optical transport functions directly into QSFP modules, offering 21 dBm output power, variable gain, low power consumption, and autonomous plug-and-play operation with auto-provisioning and laser-safety management. Fixed-wavelength and colorless MUX/DMUX options and asymmetric optical connectors are intended to simplify deployment and reduce fiber-connection errors.

News Explained

The enhanced full-C-band POLS is generally available and shipping in high volume, with versions for 400G and 800G ZR/ZR+ applications that support SFF-8636 or CMIS 4.0 memory maps.

Market Context

COHR was up 6.92% in the pre-publication market context; the supplied scanner showed no peer moving ...

Analysis

COHR was up 6.92% in the pre-publication market context; the supplied scanner showed no peer moving in the same direction, providing context for this company-specific product-availability announcement.

Key Figures

DWDM wavelengths: Up to 32 wavelengths AI datacenter traffic capacity: Up to 25.6Tbps Link distance: 2km to 200km +2 more

DWDM wavelengths

Up to 32 wavelengths

Single fiber pair

AI datacenter traffic capacity

Up to 25.6Tbps

Links from 2km to 200km

Link distance

2km to 200km

Enhanced POLS system

Output power

21dBm

Full C-band POLS

Supported applications

400G and 800G ZR/ZR+

POLS portfolio

Key Terms

c-band, dwdm, qsfp, digital coherent optics

4 terms

c-band technical

"with the full C-band, high-power variable-gain amplifier optical line system"

C-band is a slice of radio spectrum commonly used for long-range satellite links and now repurposed in many countries for mid-range 5G mobile networks; think of it as a highway frequency that carries large amounts of wireless data. It matters to investors because who controls or uses that spectrum affects telecom companies’ service quality, equipment makers’ sales, and government auction revenue, so changes in C-band policy or deployment can shift competitive positions and future cash flows.

dwdm technical

"supports up to 32 DWDM wavelengths over a single fiber pair"

Dense Wavelength Division Multiplexing (DWDM) is an optical networking technology that lets many separate data streams travel simultaneously over a single fiber by using different colors of light, like adding lanes to a highway without laying new road. For investors, DWDM matters because it enables service providers and data centers to increase capacity, cut per‑unit transmission costs, and delay expensive fiber builds, affecting revenue potential, capital spending and competitive positioning.

qsfp technical

"in a compact QSFP form factor"

QSFP (Quad Small Form-factor Pluggable) is a compact, standardized hot-swappable transceiver module used to connect high-speed data links in networking and data-center equipment; it carries multiple parallel channels (commonly four) for optical or electrical signals to support very high bandwidth. Investors care because QSFP modules and compatible ports are key components that enable faster network capacity and interoperability—think of them like standardized power plugs that let different devices share high-speed connections—so demand and pricing affect makers and buyers across the telecom and data-center supply chain.

digital coherent optics technical

"Designed for the latest generation of 800G ZR/ZR+ digital coherent optics"

Digital coherent optics are compact optical transceiver modules that combine coherent light transmission with on‑module digital signal processing to carry very high‑speed data over fiber. Think of them as a smart translator that both encodes and decodes complex light signals so long links can carry more data reliably. Investors care because the technology drives higher network capacity, lower cost or power per bit, and influences demand for component makers, equipment vendors and cloud or telecom providers.

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SAXONBURG, Pa., Sept. 17, 2026 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: OHR), the global leader in photonics, today announced the expansion of its Pluggable Optical Line System (POLS) portfolio, with the full C-band, high-power variable-gain amplifier optical line system in a compact QSFP form factor. Designed for the latest generation of 800G ZR/ZR+ digital coherent optics, the enhanced POLS supports up to 32 DWDM wavelengths over a single fiber pair, enabling as much as 25.6Tbps of AI datacenter traffic across links from 2km to 200km.

Targeting the high-capacity interconnect requirements of Internet Service and Cloud Hosting Providers, and AI infrastructure operators, the enhanced POLS integrates key optical transport functions into QSFP modules that plug directly into standard transceiver slots. Thanks to Coherent’s high-performance miniature optical components, including dual-chip micropump lasers, POLS provides 21dBm output power, variable gain, low power consumption, and autonomous plug-and-play operation. Auto-provisioning manages link configuration and laser safety, while fixed wavelength and colorless MUX/DMUX options and asymmetric optical connectors simplify deployment and help prevent fiber-connection errors.

"As AI infrastructure scales, customers require optical connectivity that combines greater capacity, operational simplicity, and deployment flexibility," said Madhu Krishnaswamy, Senior Vice President, Telecom Transport Business Unit at Coherent. “Since we first introduced POLS, Coherent has continued to advance the ultra-compact optical components that enable this platform, including our dual-chip 700mW uncooled 3-pin 980nm pump laser and isolator-tap photodiode technology. By extending plug-and-play operation across the full C-band, we are helping customers reduce the traditional tradeoffs between performance and operational simplicity. This advancement represents another important step toward more automated, open, and high-capacity optical networks for the AI era.”

The enhanced POLS is generally available and shipped in high volume. Coherent offers versions supporting 400G and 800G ZR and ZR+ applications with either SFF-8636 or CMIS 4.0 memory maps, enabling straightforward deployment in existing network environments.

Visitors to ECOC 2026 are invited to experience the latest POLS technology at the Coherent Booth #2100. Additional product information is available at www.coherent.com.

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 challenges. For more information, visit us at coherent.com.

Media Contact:
innovations@coherent.com 

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What types of networks and operators is the enhanced POLS intended for?

The enhanced POLS targets the high-capacity interconnect requirements of Internet Service Providers, Cloud Hosting Providers, and AI infrastructure operators, supporting AI datacenter traffic over distances from 2 km to 200 km.

What are the main technical capabilities of Coherent’s enhanced POLS?

The system supports up to 32 DWDM wavelengths and as much as 25.6 Tbps per fiber pair, provides 21 dBm output power with variable gain, low power consumption, autonomous plug-and-play operation, and auto-provisioning that manages link configuration and laser safety.

Which interfaces and applications does the POLS support for deployment?

Coherent offers versions that support 400G and 800G ZR and ZR+ applications with either SFF-8636 or CMIS 4.0 memory maps, to enable straightforward deployment in existing network environments.

Is the enhanced POLS available now, and how can customers learn more?

The enhanced POLS is generally available and shipped in high volume. Visitors to ECOC 2026 can experience the latest POLS technology at Coherent Booth #2100, and additional product information is available at www.coherent.com.