4Q25 Transport Hardware & Markets Report
New for this quarter – WDM Pluggable Market Share
4Q25 Preliminary Transport Hardware & Markets Report
All three end customer markets grew worldwide, with worldwide cloud spending growing 64%
4Q25 Vendor Reports and Key Takeaways
Analysis and opinion on 4Q25 company results.
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.
3Q25 Transport Hardware & Markets Report
All three end customer markets grew worldwide, with worldwide cloud spending growing 64%
3Q25 Vendor Reports and Key Takeaways
Analysis and opinion on 3Q25 company results.
3Q25 Preliminary Transport Hardware & Markets Report
All three end customer markets grew worldwide, with worldwide cloud spending growing 64%
Pluggable Transponders
Pluggable coherent is transforming optical transport, replacing embedded optics to and extending the benefits of pluggables to traditional optical transport hardware.
ECOC 2025 Show Report
The Four Horseman of AI scaling: CPO, OCS, 1.6T, and 800ZR/Coherent Lite
Coherent Lite: Technology, Applications and Forecast
This report initiates our coverage of Coherent Lite.
2Q25 Transport Hardware & Markets Report
The market recovery accelerated in 2Q with Cloud & Colo spending rocketing 50%.
2Q25 Preliminary Transport Hardware & Markets Report
The worldwide optical transport market accelerated in 2Q as cloud and colo spending rocketed 50% worldwide.
Ciena 2Q25 Vendor Summary Report
Ciena hit record revenue with Cloud customers, while Service Provider sales slowly recovered.
1Q25 Transport Hardware & Markets Report
The Optical and Routing markets show signs of recovery, and tariffs aren’t yet affecting business.
1Q25 Preliminary Transport Hardware & Markets Report
The Optical and Routing markets show signs of recovery, and tariffs aren’t yet affecting business.
Ciena Vectors 2025
A Focus on Line Systems and Components
Tracking the Coherent DSP Supply Chain – 2025
Uncovering who uses which DSP, and which DSP vendors ship the most volume.
Ciena 1Q25 Vendor Summary Report
Ciena’s SP business is on the rebound, but where is the AI Cloud surge?
Ciena Brings Data Center Connectivity Innovations to OFC 2025
This first deployment uses an early release of Juniper’s JCO800 coherent optics in the PTX
4Q24 Transport Hardware & Markets Report
Carrier caution has resulted in underinvestment, and networks are now running “hot” enough to require upgrades and expansion.









