Coherent Announces General Availability of Industry's First Dual-Laser QSFP28-DCO for Single Fiber Transmission
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.
News Market Reaction – COHR
In the Mar 9 session, COHR gained 7.04%, reflecting a notable positive market reaction. Argus tracked a trough of -5.6% from its starting point during tracking. Our momentum scanner triggered 75 alerts that day, indicating high trading interest and price volatility.
Data tracked by StockTitan Argus on the day of publication.
Key Figures
Historical Context
| Date | Event | Sentiment | 24h Move | Catalyst |
|---|---|---|---|---|
| Mar 04 | AI optics product | Positive | -7.6% | Launch of 224Gbps quad TIA for AI and cloud optical transceivers. |
| Mar 04 | Test tool launch | Positive | -2.1% | Release of WaveMaker 4000A spectrum synthesizer for Super C-Band DWDM testing. |
| Mar 03 | Conference presence | Neutral | -2.1% | Executives presenting and plenary at OFC 2026 on photonics and AI topics. |
| Feb 27 | Investor conference | Neutral | +3.5% | CEO and CFO fireside chat at Morgan Stanley 2026 TMT Conference. |
| Feb 19 | Leveraged ETF launch | Neutral | +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.
Recent COHR news around products and events often showed negative price reactions, with only conference participation and leveraged ETF launches coinciding with positive moves.
Over the past few weeks, COHR issued multiple announcements, including an AI-focused 224Gbps quad TIA launch on Mar 4 and new test equipment (WaveMaker 4000A) with demos at OFC 2026. Executive thought-leadership at OFC and a Morgan Stanley TMT conference appearance on Mar 3, 2026 highlighted visibility efforts. A leveraged 2x long ETF (COHX) was also introduced in Feb 2026. Today’s coherent QSFP28-DCO product launch continues this stream of technology and ecosystem-related updates.
Key Terms
qsfp28-dco technical
coherent transmission technical
bi-directional technical
fiber plant technical
AI-generated analysis. How Rhea-AI works. Not financial advice.
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
