All You Need to Know About V-Groove Glass
V-groove glass is a precision alignment component used to position optical fibers at defined locations within a fiber array.
The V-shaped grooves locate individual fibers and maintain the required spacing between adjacent channels. Once assembled with fibers and a cover plate, the glass structure provides a compact and stable interface for optical coupling.
Precision Fiber Alignment
TGVGlass manufactures custom V-groove substrates in borosilicate, quartz / fused silica, aluminosilicate, and other technical glasses according to fiber diameter, pitch, groove quantity, substrate dimensions, and assembly requirements.
Custom V-Groove Glass Specifications
| Item | Capability |
|---|---|
| Product | V-Groove Glass Substrate |
| Glass Materials | Borosilicate, quartz / fused silica, aluminosilicate, and other technical glass |
| Groove Quantity | Custom |
| Fiber Pitch | According to drawing |
| Fiber Diameter | According to fiber specification |
| Groove Geometry | Custom V-groove design |
| Substrate Size | Custom |
| Cover Glass | Available |
| Surface Finish | Precision polished options |
| Production | Prototype and batch quantities |
| Product Option | Groove Layout | Pitch | Cover Glass | Supply Stage |
|---|---|---|---|---|
| Single-Row V-Groove Substrate | Single-row array | Drawing-based | Optional | Prototype / Batch |
| V-Groove Substrate with Cover Glass | Custom array | Drawing-based | Included | Prototype / Batch |
| Custom Pitch V-Groove Array | Custom | Custom optical pitch | Optional | Prototype / Batch |
| Custom Glass Fiber Array Substrate | Drawing-based | Fiber specification | Available | Prototype / Batch |
Need Help?
Send us your fiber array drawing or optical coupling requirements for an engineering evaluation.
How V-Groove Fiber Alignment Works
Defined Fiber Position
The two angled groove walls constrain each fiber and establish a repeatable center position along the glass substrate.
Controlled Array Pitch
Groove spacing is manufactured to the optical coupling layout so adjacent fibers align with photonic chips, waveguides, PLC devices, or transceiver interfaces.
Cover Glass Retention
A matched precision cover plate can hold the fibers in the groove array and complete a stable, compact optical coupling assembly.
Applications and Benefits
Fiber Array Applications
- Photonic chip coupling
- PLC device fiber alignment
- Optical transceiver assembly
- Waveguide coupling interfaces
- Multichannel optical communication
Assembly Benefits
V-groove glass provides compact passive fiber positioning, controlled channel spacing, stable material behavior, precision-polished surfaces, optional cover plates, and a drawing-based route from prototype assembly evaluation to batch production.
Why Choose TGVGlass?
- Custom fiber specification: groove geometry and pitch can be matched to the required fiber diameter and optical layout.
- Multiple glass materials: borosilicate, quartz / fused silica, aluminosilicate, and other technical glass options are available.
- Cover glass integration: matching precision cover plates can be supplied for fiber positioning and array assembly.
- Precision surface options: polished surface finishes are available according to optical and assembly requirements.
- Prototype to batch production: parts can be supplied for early assembly evaluation and repeat manufacturing.
FAQs
Common questions about groove pitch, fiber compatibility, cover plates, glass materials, and production.
Can the groove pitch be customized?
Yes. Fiber pitch and groove arrangement are manufactured according to the customer’s array drawing and optical coupling layout.
Can you match a specific fiber diameter?
Yes. Groove geometry can be evaluated and configured around the fiber specification supplied with the project.
Is a matching cover glass available?
Yes. A precision cover plate can be supplied with the V-groove base substrate for fiber retention and array assembly.
What information is needed for a quotation?
Please provide the fiber diameter, pitch, groove quantity, substrate dimensions, glass material, cover-glass requirement, quantity, and drawing.
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Send your fiber array drawing, fiber specification, pitch, groove quantity, substrate dimensions, glass material, cover-glass requirement, and target quantity.
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Our team can evaluate the glass material, groove arrangement, substrate dimensions, matching cover plate, and production route.