Wafer-level Simultaneous Structuring Enables High-Precision V-Grooves for Next-Generation Photonic Packaging

Optical Connections, a leading international media outlet dedicated to optical communication technologies, recently published a feature article authored by Focuslight in its Autumn 2025 issue, titled: “Wafer-level Simultaneous Structuring Enables High-Precision V-Grooves for Next-Generation Photonic Packaging”.

The article provides an in-depth discussion of how engineered V-groove structures are driving the evolution of next-generation photonic integrated circuit (PIC) fiber interfaces and systematically elaborates on the advantages of Focuslight’s wafer-level simultaneous structuring process in achieving submicron precision, scalability, manufacturing efficiency, and performance uniformity.

Key Insights

1. Limitations of Traditional V-Groove Fabrication
As the number of channels in photonic integrated circuits (PICs) continues to grow, mechanical dicing or tool-based V-groove processes face increasing challenges in maintaining groove depth uniformity, pitch deviation, and positional error. These limitations make it difficult to meet the stringent alignment and coupling precision requirements of advanced optical packaging.

2. Breakthrough Through Wafer-level Simultaneous Structuring
Focuslight’s wafer-level simultaneous structuring technology eliminates cumulative errors inherent to sequential machining, enabling simultaneous formation of multiple V-grooves with submicron alignment accuracy. This approach ensures performance consistency, high yield, and consistent optical coupling performance, representing a scalable and high-precision manufacturing solution for next-generation optical packaging.

3. Enabling Next-Generation Optical Interconnects
With continuous advancements in wafer-level microfabrication and metrology, Focuslight is advancing optical packaging technologies toward greater reliability and mass-production readiness, meeting the rising demands of telecommunication networks, data centres and AI computing for high-bandwidth and energy-efficient photonic interconnects.

True to its motto – Engineered in Europe, Scaled in Asia – Accelerating Global Reach in High-Precision Micro-Optics – Focuslight continues to deliver innovative and practical solutions that address the challenges of next-generation networks, empowering our customers to advance the future of the optical communications. 

- Full article reposted below –

Please click here to visit the page of this article on the website of Optical Connections.