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Quartz Substrates - A5

Quartz Substrates - A5 are essential components tailored for the optical communication sector, perfectly aligned with the thermal expansion characteristics of optical fibers to ensure seamless integration and functionality. Renowned for their precise dimensional accuracy, exceptional hardness, and robust environmental resistance, A5 substrates are extensively utilized in a variety of optical devices, including optical couplers, ribbon fiber fusion splicers, and high-power lasers. The production process commences with the prefabrication of a quartz rod, which undergoes a meticulous cleaning before being secured above a high-temperature graphite furnace. Protected by an inert gas atmosphere, the rod is subjected to continuous traction, drawing, cutting, and additional operations, facilitating the swift creation of A5 quartz substrates. These substrates are distinguished by their transparent surfaces and high dimensional precision, rendering them ideal for large-scale production. This efficient manufacturing technique not only elevates the quality of the components but also significantly curtails production costs, making A5 substrates a cost-effective and high-quality choice for the optical communication industry.

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Specifications of Quartz Substrates - A5

A5 quartz substrate product parameter table
Material PropertiesQuartz Quartz, Silicon Dioxide (SiO2) content>99.9%
Density: 2.2×10³Kg/m³ Thermal expansion coefficient: 5.5×10-7cm/cm℃
Compressive strength: 4.8×107 Pa (N/m²) (7000psi)
Tensile strength: >1.1×109 Pa (160000psi)
Softening point: 1683℃ Annealing point: 1215℃ Deformation point: 1120℃
Refractive index: 1.4585
Dielectric constant: 3.75 (@1MHz) Insulation strength: 5×107V/m
Dimensions and TolerancesOuter diameter OD: φ0.5≤OD≤φ3±0.05mm, φ3≤OD≤φ5mm±0.1mm
Slot width W: W 0.2≤OD≤4±0.1mm or according to customer requirements
Back height H: H is 1/2 of the outer diameter, H=OD/2±0.1mm or according to customer requirements
Angle A: Choose 23°±5° or 28°±5° according to the groove width.
Arc angle R: rounded corner by high temperature drawing process, R≤0.15mm
Length L: L=1~100mm±0.2mm, the length can be processed according to customer requirements
Surface QualityThe product has no cracks, both end surfaces are ground surfaces, and the cylindrical surface and groove surface are transparent surfaces.
If customers have special requirements, surface etching and frosting can be performed

Dimension Drawing of Quartz Substrates - A5

Dimension Drawing of Quartz Substrates - A5

Features of Quartz Substrates - A5

Features of Quartz Substrates - A5
  • Material: High-purity fused quartz, with a silicon dioxide (SiO2) content of >99.9%. Softening point >1650°C, high strength, high wear resistance, and high light transmittance.

  • Properties: The quartz substrate is produced through high-temperature melting and drawing, resulting in a transparent surface. This process eliminates localized surface microcracks and optical fiber positioning groove surface imperfections. The quartz substrate has high strength, making it resistant to cracking or shattering when fixing optical fibers with adhesive. It achieves a high pass rate for adhesive bonding.

  • Environmental Performance: The water, electricity, and gas composite drawing production process does not use any chemical solvents. The material and production process do not contain or involve substances controlled by the EU RoHS directive and Reach regulations.

  • Quality Stability: Through CNC mainframe, feeding mechanism, traction mechanism, and laser rangefinder closed-loop control, the quartz substrate with the required diameter and groove width is precisely drawn. The consistency in accuracy is very high, and the shape of the optical fiber positioning groove is accurate, ensuring outstanding production stability.

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