ISO 9001:2015 Precision Fabrication Direct Factory

Wholesale Optical Flat Quartz Suppliers & Factory

Industrial-scale manufacturing of synthetic fused silica, high-purity JGS1/JGS2/JGS3 substrates, and precision optical flats. Offering transmission from 185 nm to 3,500 nm, surface flatness down to λ/20, and laser damage thresholds verified for extreme semiconductor and photonics applications.

Direct OEM Inventory

Featured Precision Quartz & Cavity Components (Batch A)

Explore factory-direct wholesale optical components, engineered to tight micron tolerances and tested for high UV-transmittance and thermal shock resilience.

Industry Whitepaper

Optical Flat Quartz: Global Industry Paradigm & Material Physics

An authoritative analysis of fused quartz and synthetic fused silica flats in cutting-edge laser metrology, lithography, and high-energy physics.

Material Purity & Homogeneity

Optical flat quartz represents the pinnacle of transmission optics. Unlike conventional borosilicate or soda-lime glass, JGS1 Synthetic Fused Silica offers nonpareil purity (trace metals < 1 ppm), virtually eliminating bubble inclusions, striations, and birefringence. It guarantees isotropic optical paths across broad spectral bands from DUV (193 nm) up through SWIR wavelengths.

Thermal Stability (Low CTE)

Engineered with an ultra-low Coefficient of Thermal Expansion (5.5 × 10⁻⁷ / °C), quartz flats withstand instantaneous temperature gradients without mechanical deformation. This characteristic makes them the indispensable baseline reference surface in Fizeau and Twyman-Green interferometers under extreme thermal loads.

Laser-Induced Damage (LIDT)

For CW and ultrafast femtosecond industrial lasers, standard substrates suffer solarization and dielectric breakdown. Our wholesale optical flat quartz platforms undergo dual-side continuous pitch polishing, delivering LIDT > 15 J/cm² @ 1064 nm (10 ns pulse), ensuring safe deployment in multi-kilowatt fiber cutting laser heads.

Optical Quartz Grade Spectral Bandwidth Hydroxyl [OH⁻] Content Primary Industrial Applications Standard Surface Flatness
JGS1 (Synthetic Silica) 185 nm – 2,500 nm ≤ 1,200 ppm DUV Lithography, Laser Windows, Spectrophotometer Flow Cells λ/10 to λ/20 @ 632.8 nm
JGS2 (Fused Quartz) 220 nm – 2,500 nm ≤ 300 ppm High-temperature Sight Glasses, Flow Tubes, Substrate Wafers λ/4 to λ/8 @ 632.8 nm
JGS3 (Infrared Grade) 260 nm – 3,500 nm ≤ 5 ppm MWIR Thermal Imaging, Pyrometry Windows, Laser Cavity Plates λ/8 to λ/10 @ 632.8 nm
Direct Factory Infrastructure

China Factory Scale, Supply Chain Resilience & Processing Matrix

Operating from Tianjin, BY Photonics couples localized raw mineral control with integrated multi-axis CNC fabrication and Zygo-certified metrology.

Vertical Ingot-to-Component Flow

By bypassing overseas intermediaries, our wholesale supply chain sources pure crystalline quartz sands directly, refining and fusing them in controlled electric or oxyhydrogen melting environments. This full upstream-downstream custody eliminates supply chain chokepoints and guarantees stable lead times for high-volume OEM contracts.

Cold & Hot Machining Under One Roof

Unlike standard processing shops that subcontract thermal sealing or capillary redrawing, BY Photonics operates high-precision CNC contour grinding, double-sided chemical mechanical planarization (CMP), ultrasonic drilling, and flame annealing in a synchronized 3,000+ m² modern facility.

Strict Metrological Traceability

Quality assurance is not estimated; it is verified. Every wholesale batch of optical flats is tested using Zygo VeriFire™ laser interferometers for peak-to-valley (PV) wavefront error, alongside spectrophotometers verifying UV transmission cutoffs and stylus profilometers ensuring sub-nanometer surface roughness (Ra < 0.5 nm).

15+
Years Engineering (Est. 2010)
120+
CNC & CMP Polishing Spindles
λ/20
Maximum Flatness Precision
<24h
Engineering DFM Turnaround
Localized Real-World Applications

Precision Optical Flat Quartz in Modern High-Tech Clusters

Engineered to excel in demanding environments across global regional tech sectors.

Semiconductor Front-End Wafer Lithography

Deployed widely across East Asian and North American fabrication hubs as photomask blanks, stepper projection windows, and vacuum chuck reference surfaces. Their chemical resistance to RCA cleans and reactive plasma etching ensures long lifecycle durability under aggressive sub-micron photolithography cycles.

High-Power Industrial Laser Systems

Serving European and Asian fiber laser manufacturers, optical quartz flat substrates act as output couplers, debris protection shields, and beam combiners. Even under continuous 12 kW CW laser irradiation, our low-absorption fused silica prevents thermal blooming and focal point shift.

Aerospace Sensor Windows & Space Metrology

High optical transmission matched with resistance to cosmic radiation and zero-pressure outgassing makes our quartz plates the prime choice for Earth observation satellites, LIDAR altimeters, and cryogenic aerospace instrumentation packages.

Future Vision & Quality Governance

Technological Roadmap & Export Compliance

Pioneering tomorrow’s ultra-smooth optical surfaces while preserving full environmental accountability.

Magnetorheological Finishing (MRF)

Our technological progression integrates MRF polishing techniques to iteratively correct mid-spatial frequency errors on freeform and flat quartz components, aiming for sub-angstrom surface microroughness (Rq < 0.1 nm) requested by next-gen EUV systems.

Global Environmental Compliance

Every shipment is strictly compliant with international statutory standards: RoHS (EU Directive 2011/65/EU), REACH (EC 1907/2006), and Conflict Minerals regulations. Cleanroom ultrasonic washing and hermetic vacuum packaging guarantee contamination-free arrivals globally.

Direct Engineering Consultation

Our bilingual sales engineering hub bridges the gap between design drafts and production feasibility. With drawing verification executed under 24 hours (accepting STEP, IGES, DWG, and PDF formats), design-for-manufacturability (DFM) adjustments are flagged proactively.

Technical & Procurement FAQ

Frequently Asked Questions: Optical Quartz Procurement

Clear, authoritative technical answers addressing common procurement hurdles, quality thresholds, and supply logistics.

What is the functional difference between an Optical Flat and a standard polished quartz window?
An optical flat is specifically manufactured to act as a master reference surface for flatness measurement. While commercial quartz windows prioritize optical transmission and low bulk defects with moderate flatness (λ/2 to λ/4), an optical flat quartz plate undergoes extensive single- or double-sided lap polishing to hold verified wavefront flatness of λ/10 to λ/20 across 95% of its clear aperture, certified under helium-neon interferometry (632.8 nm).
How do I determine whether my application requires JGS1, JGS2, or JGS3 quartz material?
Selection is strictly dictated by operating wavelength and thermal dynamics. JGS1 is synthetic fused silica with negligible bubble inclusions and outstanding transmission in the deep ultraviolet (DUV > 85% at 193 nm); it is required for UV lasers, spectroscopy, and lithography. JGS2 is natural fused quartz suitable for visible optics and high-temperature thermal windows up to 1,100 °C. JGS3 is infrared grade with an exceptionally low OH⁻ concentration (< 5 ppm), which eliminates absorption dips at 2.73 μm, enabling clean transmission up to 3,500 nm in IR sensing.
What custom dimensions, geometries, and edge bevels can BY Photonics provide?
We machine custom diameters and rectilinears ranging from 2 mm micro-optics up to Ø600 mm oversized substrate disks. Thicknesses range from 0.2 mm ultrathin wafers to 50 mm massive reference blocks. Standard finishes include C-cut beveling, 45-degree protective edge chamfers (0.2–0.5 mm), stepping, high-aspect laser core drilling, and customized notch cuts compatible with standard SEMI wafer holders.
Can you provide custom anti-reflective (AR) or dielectric mirror coatings on optical flats?
Yes. We provide electron-beam (E-Beam) and Ion-Assisted Deposition (IAD) thin-film coating services directly in-house. Options include Single-Layer MgF2, Broadband Anti-Reflective (BBAR: 248–400 nm, 400–700 nm, or 1064 nm & 1550 nm), High-Reflectance (HR) Dielectric Coatings, and metallic mirrors (Gold, Silver, Aluminum) with adhesion enhancement coatings.
How are wholesale orders packed to prevent scratches, micro-chips, and moisture hazing during international transit?
All optical flats undergo Class 1000 cleanroom ultrasonic solvent cleaning, followed by individual insertion into dust-free membrane boxes or lens-tissue vacuum wraps. Outer layers employ anti-static polyfoam cushions enclosed in reinforced export-grade plywood crates, certified against shock and humidity for safe sea and air logistics.
Direct OEM Inventory

Featured Precision Quartz & Cavity Components (Batch B)

High-purity capillary tubing, doped glass filter assemblies, and optical fiber grooved substrates engineered for critical optoelectronic performance.