Wholesale Grooved Quartz Glass Rod Manufacturer & Suppliers

We employ ultra-precision multi-axis CNC diamond grinding workstations running specialized fine-grit resinoid or metal-bonded diamond form wheels with flood cooling. Following mechanical slotting, grooved rods undergo a controlled HF chemical etch to remove micro-fractured surface layers and subsequent oxyhydrogen flame polishing or programmable kiln annealing at 1,120°C to eliminate residual lattice shear stresses.

Selection depends directly on the optical wavelength and operating atmosphere. JGS1 (synthetic fused silica) is chosen for deep ultraviolet (UV) transmission (>85% at 193/248 nm) and zero bubble/inclusion requirements (such as optical fiber preforms and laser viewports). JGS2 is standard for semiconductor diffusion and chemical etching boats where superior thermal mechanical stability up to 1,150°C and cost-effectiveness are paramount. JGS3 is specified for infrared (IR) sensors, furnace heaters, and pyrometry applications requiring near-zero hydroxyl content (<5 ppm OH⁻) to prevent water-absorption attenuation bands at 2.73 μm.

For standard production runs, we maintain slot widths down to 0.3 mm with a tolerance of ±0.01 mm, and slot pitch repeatability of ±0.005 mm across lengths up to 1,200 mm. For specialized micro-grooved optical alignment canes, custom diamond blades can achieve 0.1 mm kerf widths with non-contact laser interferometer verification.

Devitrification (cristobalite crystal growth causing milkiness and structural failure) is triggered primarily by alkaline metal surface contaminants (Na, K, Li) when temperatures exceed 1,000°C. BY Photonics prevents this by ensuring total metallic impurities stay strictly below 15 ppm (and <1.0 ppm on JGS1), followed by semiconductor-grade acid passivation and cleanroom vacuum packaging that eliminates alkali dust before shipment.

Yes. Beyond supplying standalone grooved rods, our master glassblowers integrate them into complete welded semiconductor quartz boats, ladder carriers, vertical furnace racks, multi-bore laser flow tubes, and custom chemical vapor deposition assemblies. All components are processed in-house from initial drawing review to finish inspection.