Boron Doped Preform (Boron-Doped Stress Bar)

The boron-doped stress bar by Opticlumos is an advanced prefabricated rod specially designed and developed for polarization-maintaining fiber production.

Engineered to meet the stringent demands of global photonics, this series of stress rods is prepared utilizing a highly controlled in-tube chemical vapor deposition (CVD) process. This sophisticated manufacturing technique yields exceptional physical and optical properties, making these products widely used as critical stress zone materials for both stress polarization-maintaining fiber and active polarization-maintaining fiber applications.

Product Structure

Our boron-doped preform features a precise three-layer concentric structural design ensuring maximum optical stability and mechanical reliability.

Product Features

  • High boron doping concentration for superior birefringence.
  • Excellent geometric uniformity ensuring stable drawing yields.
  • Large size stress zone for optimized polarization maintenance.
Stress Zone Lining Layer Cladding Layer

Cross-Sectional Structure Diagram

Application Fields

Built for premium precision, our boron-doped stress bars are the material of choice for the following specialized optical fiber applications:

  • Polarization-maintaining fiber.
  • Active optical fiber.
  • Boron-doped capillary rod.

Product Specification

Properties Unit Product Specification
Molar concentration mol% 10.0 ~ 30.0
Lining material / High purity quartz lined pipe
Geometric Properties
Stress bar length mm ≤ 500.0
Diameter of stress zone mm ≤ 15.0
Out-of-roundness of stress zone % ≤ 2.0

Customized Information

Advanced Fabrication Services:

  • Customizable boron-doped stress bars with a molar concentration of 10% to 25%.
  • The stress bar cylindrical grinding service can be provided to meet precise OEM requirements.

FAQ

What is a boron-doped stress bar primarily used for in optical manufacturing?
Our boron-doped stress bars are specially designed and developed to act as the critical stress zone materials in advanced fiber optics. They are widely utilized in the manufacturing of high-performance polarization-maintaining (PM) fibers and active polarization-maintaining fibers, ensuring superior birefringence characteristics.
What are the key manufacturing advantages of Opticlumos boron-doped preforms?
Prepared utilizing a highly controlled in-tube chemical vapor deposition (CVD) process, our preforms offer significant advantages including a high boron doping concentration, excellent geometric uniformity, and the capability to achieve a large size stress zone (up to 15.0 mm in diameter) for optimized optical stability.
Can the boron doping molar concentration be customized for specific PM fibers?
Yes, absolutely. While our standard specification covers a molar concentration range of 10.0 to 30.0 mol%, we offer comprehensive OEM solutions. We can specially customize your boron-doped stress bars with a tightly controlled molar concentration specifically between 10% to 25% to precisely match your blueprint requirements.[cite: 3]
Do you offer secondary geometric processing like cylindrical grinding?
Yes, we provide full-scale fabrication support. To guarantee that the out-of-roundness of the stress zone remains strictly ≤ 2.0%, a dedicated stress bar cylindrical grinding service can be provided, ensuring seamless integration into your optical fiber drawing process.