Custom Special-Shaped Glass Preform

Opticlumos provides a comprehensive, full-range special optical fiber manufacturing platform. We deliver highly customized quartz glass preform processing technologies designed to meet the most rigorous technical demands of global photonics engineers.

Our advanced processing capability is driven by five core technology platforms, ensuring absolute precision in the fabrication of multi-core, photonic crystal, and complex microstructure optical fiber preforms.

Schematic of Combined Special-Shaped Processing Technologies

The 5 Core Processing Technologies

1. Deep Hole Drilling and Grinding Technology

Ideal for multi-core, photonic crystal, microstructure, and polarization-maintaining optical fiber prefabricated rods.

Technical Specification	Parameters
Incoming Shape Requirements	Round, square, rectangular, regular polygon bars
Punch Diameter	5 ~ 20 ± 0.05 mm
Hole Out-of-Roundness	≤ 0.01 mm
Drilling Depth	1 ~ 550 mm (Varies depending on pore size)
Minimum Hole Spacing	1 mm

2. Cylindrical Polishing Technology

Applied for high-precision outer circle machining and outer circle repair of optical fiber prefabricated rods.

Technical Specification	Parameters
Incoming Shape Requirements	Round bar
Processing Diameter	10 ~ 120 ± 0.02 mm
Machining Length	100 ~ 1000 mm
Surface Roughness (Ra)	≤ 0.10 μm

3. Plane Polishing Technology

Engineered for fabricating elliptical core fiber prefabricated rods and active doping prefabricated rods.

Technical Specification	Parameters
Incoming Shape Requirements	No limit to the shape of incoming material
Processing Diameter	10 ~ 100 ± 0.01 mm
Processing Length	1 ~ 400 mm
Number of Polygons	1 ~ 16 Faces

4. Special-Shaped Slotting Technology

Used for the structural modification of various optical fiber preforms or extension rods.

Technical Specification	Parameters
Incoming Shape Requirements	Round, square, rectangular, regular polygon bars
Machining Diameter	10 ~ 50 mm
Processing Length	1 ~ 400 mm
Notch Width	1 ~ 20 mm
Accuracy Error	± 0.05 mm

5. Processing Tech of Preform with Special Structure

Designed specifically for highly complex photonic crystal fiber and microstructure optical fiber prefabricated rods.

Technical Specification	Parameters
Incoming Shape Requirements	Circular pipe
Machining Diameter	5 ~ 50 mm
Processing Length	1 ~ 1000 mm

Frequently Asked Questions

What shapes of incoming materials can be processed?

Our manufacturing platform is highly versatile. For Deep Hole Drilling and Slotting, we accept round, square, rectangular, and regular polygon bars. Furthermore, our Plane Polishing Technology has absolutely no limit on the shape of the incoming material, allowing for unprecedented customization.

What is the highest precision achieved in Deep Hole Drilling?

Opticlumos guarantees strict geometric control. Our deep hole drilling technology achieves a hole out-of-roundness of ≤ 0.01 mm and allows for a minimum hole spacing of just 1 mm, which is essential for creating high-density multi-core and photonic crystal preforms.

Can you fabricate multi-faceted polygon preforms?

Yes. Our advanced Plane Polishing Technology can machine anywhere from 1 to 16 distinct polygon faces on a single preform, making it ideal for specialized elliptical core and active doping applications.