Coherent Announces General Availability of Industry's First Dual-Laser QSFP28-DCO for Single Fiber Transmission

Coherent (NYSE: COHR) announced general availability in March 2026 of the industry’s first dual-laser QSFP28-DCO module enabling bi-directional 100G coherent transmission over a single working fiber.

Rhea-AI Summary

Coherent (NYSE: COHR) announced general availability in March 2026 of the industry’s first dual-laser QSFP28-DCO module enabling bi-directional 100G coherent transmission over a single working fiber. The compact QSFP28 form factor supports up to 300km reach and claims up to a 10x capacity upgrade versus legacy 10G bi-directional links, targeting fiber-constrained routes and leveraging Coherent's proven single-laser QSFP28-DCO platform deployed worldwide for two years.

Positive

• Enables bi-directional 100G coherent transmission over a single working fiber
• Up to 300km reach for long-distance links in compact QSFP28 form factor
• Claims up to a 10x capacity upgrade compared with legacy 10G bi-directional links
• Built on a proven platform used in single-laser QSFP28-DCO modules deployed worldwide for two years

Negative

• None.

Argus Mar 9 session

+7.04% close to close Open Argus

Details

News Market Reaction – COHR

On Mar 9, the first trading day after this news, COHR closed 7.04% above the previous close.

Data tracked by StockTitan Argus for the Mar 9 session.

Key Figures

Price change 24h: -7.64% 52-week range: $45.58 – $300.20 Market cap: $51,531,261,841 +5 more

Price change 24h

-7.64%

Move on day of QSFP28-DCO launch news

52-week range

$45.58 – $300.20

Pre-news 52-week low and high

Market cap

$51,531,261,841

Pre-news market capitalization

200-day MA

$138.82

Price trading above this moving average

Link speed

100G

Bi-directional coherent transmission per fiber link

Reach

300 km

Maximum reach for 100G bi-directional coherent links

Capacity upgrade

10x

Capacity increase versus legacy 10G bi-directional links

Registered resale shares

9,775,846 shares

Common stock registered for resale under S-3ASR

Historical Context

5 past events · Latest: Mar 04

5 events

1. Mar 04

   AI optics product

   24h Move

   -7.6%

   Launch of 224Gbps quad TIA for AI and cloud optical transceivers.

2. Mar 04

   Test tool launch

   24h Move

   -2.1%

   Release of WaveMaker 4000A spectrum synthesizer for Super C-Band DWDM testing.

3. Mar 03

   Conference presence

   24h Move

   -2.1%

   Executives presenting and plenary at OFC 2026 on photonics and AI topics.

4. Feb 27

   Investor conference

   24h Move

   +3.5%

   CEO and CFO fireside chat at Morgan Stanley 2026 TMT Conference.

5. Feb 19

   Leveraged ETF launch

   24h Move

   +3.8%

   Debut of 2x long single-stock ETF COHX based on Coherent shares.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Key Terms

qsfp28-dco, coherent transmission, bi-directional, fiber plant

4 terms

qsfp28-dco technical

"industry’s first dual-laser QSFP28-DCO module designed to enable bi-directional"

QSFP28-DCO is a compact, pluggable optical module that plugs into networking equipment and uses advanced signal processing to send very high-speed data over long distances on fiber, combining the small QSFP28 form factor with coherent transmission technology. For investors, it matters because these modules enable carriers and cloud operators to upgrade backbone and data-center links without replacing whole systems, driving demand for higher-margin optical components and network upgrades.

coherent transmission technical

"enable bi-directional 100G coherent transmission over a single working fiber"

Coherent transmission is a way of sending data over cables or optical fibers that preserves both the strength and the precise timing (phase) of the signal, allowing receivers to extract more information from the same channel. For investors, it matters because coherent systems boost capacity and reach while lowering long‑term cost per bit, which can give equipment makers and networks a competitive advantage similar to upgrading from a narrow road to a multi‑lane highway for data.

bi-directional technical

"deploy bi-directional 100G coherent links over a single fiber"

Able to operate or move in two opposite directions, or to allow information or value to flow both ways. For investors, bi-directional describes systems, data feeds, trading links or regulatory effects that can send and receive messages or funds rather than only one-way, like a two-lane road that supports traffic in both directions. That two-way capability matters because it enables faster responses, more accurate pricing, and the possibility of reversing actions if conditions change.

fiber plant technical

"service providers to maximize fiber plant utilization while maintaining operational"

A fiber plant is either a manufacturing facility that produces textile or industrial fibers (like synthetic yarns or spun cellulose) or a crop grown specifically for its fibers (such as cotton, hemp, or flax). Investors care because these plants are the source of raw materials and finished goods that drive sales, costs and supply chains; like a bakery for bread, their output and efficiency directly affect revenues, profit margins and exposure to commodity or demand swings.

AI-generated analysis. How Rhea-AI works. Not financial advice.

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

SAXONBURG, Pa., March 06, 2026 (GLOBE NEWSWIRE) -- Coherent Corp. (NYSE: COHR), a global leader in photonics, today announced the general availability of the industry’s first dual-laser QSFP28-DCO module designed to enable bi-directional 100G coherent transmission over a single working fiber. This breakthrough brings coherent performance to fiber-constrained network environments in a compact QSFP28 form factor for the first time.

The new module allows network operators to deploy bi-directional 100G coherent links over a single fiber, an essential capability for routes where fiber availability is limited or costly to expand. By enabling multiple 100G services on existing infrastructure, customers can significantly increase network capacity, extend reach up to 300km, and achieve up to a 10x capacity upgrade compared to legacy 10G bi-directional links. The solution allows service providers to maximize fiber plant utilization while maintaining operational simplicity and compatibility with deployed equipment.

“Coherent continues to strengthen its leadership in 100G QSFP28-DCO solutions with innovations that directly address real-world network constraints,” said Moran Roth, VP Product Line Management of Transmission at Coherent. “This dual-laser capability expands our portfolio to better serve Cable/MSO and wireless transport applications, delivering greater flexibility, scalability, and value to customers operating in fiber-limited environments.”

The dual-laser QSFP28-DCO is generally available beginning in March 2026. The solution leverages the same proven technology platform used in Coherent’s single-laser QSFP28-DCO modules, which have been successfully deployed worldwide for the past two years.

For more information, visit coherent.com. Attendees of OFC 2026 are invited to visit Coherent at Booth 1401 to learn more about this new solution and the company’s comprehensive coherent optical portfolio.

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.

Media Contact:
innovations@coherent.com 

A photo accompanying this announcement is available at https://www.globenewswire.com/NewsRoom/AttachmentNg/50955527-4813-4684-98c6-12adde4e12ae

FAQ

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

What is Coherent's dual-laser QSFP28-DCO and how does it benefit network operators (COHR)?

It is a compact QSFP28 module that enables bi-directional 100G coherent links over one fiber, reducing fiber needs. According to the company, it lets operators increase capacity on existing infrastructure, simplify deployment in fiber-limited routes, and maintain compatibility with deployed equipment.

When will Coherent (COHR) make the dual-laser QSFP28-DCO generally available?

The dual-laser QSFP28-DCO is generally available beginning in March 2026. According to the company, shipments and customer access start in March 2026, with demonstrations planned at OFC 2026 for interested buyers and partners.

What performance can customers expect from Coherent's new QSFP28-DCO (COHR) module?

Customers can deploy bi-directional 100G coherent transmission over a single fiber with reach up to 300km. According to the company, the module supports up to a 10x capacity upgrade versus legacy 10G bi-directional links on existing fiber.

Which use cases and customers is Coherent targeting with the dual-laser QSFP28-DCO (COHR)?

The product is aimed at Cable/MSO and wireless transport customers operating in fiber-limited environments needing compact coherent solutions. According to the company, it addresses routes where fiber availability is limited or costly to expand and supports service scaling.

How does Coherent's dual-laser QSFP28-DCO relate to its previous single-laser QSFP28-DCO products (COHR)?

The new module leverages the same technology platform used in Coherent's single-laser QSFP28-DCO modules deployed worldwide for two years. According to the company, this continuity aims to ensure proven performance and compatibility for existing customers.