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.