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4Q25 Vendor Reports and Key Takeaways

Analysis and opinion on 4Q25 company results.

WDM Pluggables – now part of Cignal AI’s Transport Hardware Report

Introducing the WDM Pluggables category – the inclusion of pluggable coherent optics within the Transport Hardware report.

Optical Circuit Switching – 1Q26 Forecast Update

2025 results are updated and the forecast is now 3x higher for 2026 and greater than 40% higher for 2029.

1Q26 Coherent Generation Adoption

Coherent Optics: It’s a Pluggable World (1Q26)

In this update to our 1Q25 report, we cover the trends favoring pluggable optics as well as the companies positioned to benefit.

The Optical Circuit Switching Market – 4Q25

In this update to our OCS report we cover more vendors and technologies, investigate additional applications, and update our market forecast.

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3Q25 Vendor Reports and Key Takeaways

Analysis and opinion on 3Q25 company results.

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ECOC 2025 Show Report

The Four Horseman of AI scaling: CPO, OCS, 1.6T, and 800ZR/Coherent Lite

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Cisco Packet Optical Networking Conference 2025

Service providers share a positive outlook on routed optical networking but the role of Cisco optical hardware in long haul networks remains unclear.

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Nokia Wavelengths 2025

The ex-Infinera presence was strong at Nokia’s Wavelengths conference, as the company repositions to take advantage of the AI wave.

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CIOE25 Show Report

Optimism ruled at CIOE this year, with vendors and operators eager to talk about the latest datacom speeds, emerging optical technologies, and the unique ways that China builds and consumes optics.

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Coherent Lite: Technology, Applications and Forecast

This report initiates our coverage of Coherent Lite.

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Coherent 2Q25 Vendor Summary Report

Telecom and Datacom growth was slow this quarter, but the new 6” InP fab should drive revenue starting next quarter.

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Lumentum 2Q25 Vendor Summary Report

Datacom is booming across the industry, and Lumentum is riding the wave with both optical modules and components.

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Nokia 2Q25 Vendor Summary Report

Optical and routing sales are lifted by AI and a weakening dollar.

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1.6TbE Datacom Module Forecast Updates

The 2Q25 Optical Components Report will include a breakout of 1.6TbE optics into SR, DR, FR, and LR for the first time.

800ZR/ZR+ Forecast Update – 2Q25

AI Deployment Demand from Meta Exceeds Earlier Expectations

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Ciena 2Q25 Vendor Summary Report

Ciena hit record revenue with Cloud customers, while Service Provider sales slowly recovered.

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Ciena Vectors 2025

A Focus on Line Systems and Components

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Coherent 1Q25 Vendor Summary Report

Datacom is driving growth as telecom recovers, and the tariff impact is expected to be minimal.

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Nokia 1Q25 Vendor Summary Report

Nokia closes the Infinera acquisition and sees significant YoY growth in both IP and Optical.