ISO 9001:2015 Certified Cleanroom Precision Optics

Quartz Plates and Windows Manufacturer & Factories in the India Market

Precision-engineered synthetic fused silica (JGS1), optical fused quartz (JGS2), and low-OH infrared substrates (JGS3) tailor-fabricated for semiconductor fabs, industrial laser optics, and defense photonics across Gujarat, Bengaluru, Chennai, and Pune.

Send Inquiry Now Technical Specification Guide
Primary Engineering Stock

High-Purity Quartz Windows & Plates for Indian Industrial Infrastructure

Rapid dispatch substrates precision-machined for semiconductor wafer processing, high-transmission deep-UV exposure, vacuum chambers, and analytical spectroscopy.

High-Quality JGS1 UItraviolet UV Grade Fused Silica Plate Supplier, Factory

High-Quality JGS1 Ultraviolet (UV) Grade Fused Silica Plate for DUV Applications

View Product Specs
Macro Market Analysis

The Strategic Expansion of Quartz Glass in India’s Semiconductor & Photonics Hubs

India’s electronics and manufacturing landscape is undergoing a systemic transformation catalyzed by the India Semiconductor Mission (ISM), large-scale commercial solar photovoltaic production linked to the PLI scheme, and indigenous aerospace expansions by ISRO and DRDO. High-purity quartz plates and optical windows have shifted from peripheral laboratory consumables to foundational mission-critical components in cleanroom environments.

From the emerging semiconductor mega-fabs in Dholera and Sanand (Gujarat) to advanced laser manufacturing corridors in Pune, Bengaluru, and Sri City (Andhra Pradesh), industrial systems demand optical quartz capable of withstanding extreme thermal shock (up to 1,200°C continuous), ultra-corrosive fluorine-based plasma etching (CF₄, SF₆), and high-power fiber laser irradiation exceeding 12 kW without optical distortion.

BY Photonics bridges the critical domestic supply deficit by supplying pre-certified JGS1, JGS2, and JGS3 quartz blanks and custom-machined windows with complete trace metal characterization, ensuring Indian OEMs and fabricators bypass long lead times without sacrificing dimensional compliance.

Fabrication Tolerances & Metrics

Substrate Purity (SiO₂)
≥ 99.999% (5N Synthetic Fused Silica)
Surface Figure (Flatness)
λ/10 @ 632.8 nm (Zygo Interferometry)
Scratch-Dig (MIL-PRF-13830B)
10-5 to 20-10 Laser Grade
Parallelism / Wedge
≤ 5 arcseconds (±0.002 mm)
Transmission Bandwidth
185 nm – 3,500 nm (DUV to Mid-IR)
Thermal Shock Resistance
ΔT > 1000°C (Quench to 20°C H₂O)
LIDT Threshold (1064nm, 10ns)
> 15 J/cm² High Energy Resistance
99.999%
Synthetic Silica Purity (Sub-ppb Metallic Impurities)
λ / 10
Optical Surface Figure via Dual-Sided Lapping
< 5 ppm
Low Hydroxyl (OH) Content in JGS3 Infrared Substrates
24 Hours
Engineering DFM & Quote Response for Indian Importers
Material Science Classification

Comparative Optical & Physical Parameters: JGS1 vs JGS2 vs JGS3

Selecting the correct fused quartz or fused silica grade directly impacts optical throughput, thermal stability, laser damage threshold, and lifecycle costs in Indian industrial operating conditions.

JGS1 (UV Fused Silica)

Synthetic chemical vapor deposited (SiCl₄) amorphous silica with zero bubble inclusions. Superior transmittance across the deep ultraviolet spectrum (185–2500 nm). Free from absorption bands at 248 nm and 193 nm, making it the industry benchmark for DUV lithography viewports, excimer laser optics, and fluorescence analytical equipment.

JGS2 (Optical Fused Quartz)

Manufactured by oxyhydrogen flame fusion of high-grade natural quartz crystals. Transmits cleanly from 220 nm to 2500 nm with exceptional structural rigidity. Ideal for high-temperature semiconductor furnace observation viewports, sight glasses, solar CVD quartz plates, and general laboratory optomechanical mountings.

JGS3 (Infrared Fused Silica)

Synthesized in a vacuum electric furnace to strip water molecules, reducing hydroxyl content (OH) to under 5 ppm. Eliminates deep water-absorption bands at 2,700 nm, providing crystal-clear transmission up to 3,500 nm. Critical for mid-infrared thermal sensors, military defense viewports, and high-energy IR laser pyrometry.

Property / Specification JGS1 (Synthetic UV Grade) JGS2 (Standard Optical Grade) JGS3 (Infrared / Low OH Grade) Borosilicate Float Glass
Primary Raw Material Synthetic SiCl₄ Precursor Purified Natural Quartz Sand Refined Natural Quartz (Vacuum Melted) Boron Trioxide & Silica Sand
Usable Transmission Range 185 nm – 2,500 nm 220 nm – 2,500 nm 260 nm – 3,500 nm 350 nm – 2,500 nm
OH (Hydroxyl) Content ~ 1,200 ppm ~ 150 – 200 ppm < 5 ppm (Dehydrated) N/A (Multi-component)
Coefficient of Thermal Expansion (CTE) 5.5 × 10⁻⁷ / °C (0–300°C) 5.5 × 10⁻⁷ / °C (0–300°C) 5.5 × 10⁻⁷ / °C (0–300°C) 3.3 × 10⁻⁶ / °C (Low Expansion)
Maximum Working Temperature 1,100°C (Continuous) / 1,300°C (Peak) 1,050°C (Continuous) / 1,250°C (Peak) 1,100°C (Continuous) / 1,300°C (Peak) 450°C (Continuous) / 500°C (Short)
Refractive Index (nd @ 589.3 nm) 1.4585 1.4585 1.4585 1.4720
Knoop Hardness 8.8 GPa (Mohs 7) 8.8 GPa (Mohs 7) 8.8 GPa (Mohs 7) 6.0 GPa (Mohs 5.5)
Primary Indian Applications Lithography, UV Disinfection, Lasers Furnace Sight Glass, Solar Diffusion IR Spectrometry, Thermal Imaging, Defense Process Chemical Sight Glass, Viewports
Industrial Solutions

End-to-End Solutions for India's Advanced Manufacturing Value Chain

Addressing the stringent engineering hurdles of Indian procurement directors across three flagship industrial sectors.

Semiconductor & Solar PV

Plasma Etch & Furnace Tubes

Indian fabs require quartz plates that do not shed particles or warp under thermal cycling. Our cold-worked and fire-polished quartz wafer carriers, diffusion boats, and chamber ceiling plates maintain dimensional tolerances within ±0.01 mm, drastically lowering defect rates during wafer epitaxy and solar cell phosphorus diffusion.

Industrial Laser Processing

High-Power Debris Shields

Laser sheet metal cutting in automotive clusters around Gurgaon, Pune, and Chennai runs continuous multikilowatt fiber systems. We engineer fused silica cover slides with dual-sided anti-reflective (AR) coatings (R < 0.1% @ 1064nm) yielding minimal thermal lensing and prolonged laser diode pump life.

Aerospace & Defense Metrology

Pressure & Vacuum Viewports

Testing avionics and propulsion assemblies under simulated stratospheric conditions requires non-birefringent, zero-inclusion quartz windows. We supply CF-flanged, hermetically sealed JGS1 and sapphire-bonded viewport assemblies engineered to withstand differential pressures up to 100 bar.

Cleanroom Packing & Export Compliance

Exporting sensitive optical glass to India requires rigorous particulate control and moisture barrier mitigation to overcome tropical humidity during monsoon transits.

  • Class 100 Cleanroom Cleaning: Ultrasonic solvent degreasing and UPW (ultra-pure water) drying.
  • Dual Vacuum Barrier: Antistatic cleanroom bags with integrated humidity indicators.
  • Shock-Suspended Crating: Custom foam nests enclosed in ISPM-15 heat-treated plywood cases.
  • Regulatory Documentation: Certificate of Analysis (CoA), Zygo surface interferograms, and BIS-compliant customs invoice data.
  • Direct Port Entry: Rapid delivery routes into Nhava Sheva (Mumbai), Chennai Port, and Bengaluru Air Cargo (BLR).
Quality & Traceability

Deterministic Quality Verification for Zero-Defect Optical Imports

For Indian research institutes (IITs, IISc) and global tier-1 industrial manufacturers operating in India, component failure causes costly line shutdowns. BY Photonics maintains complete lot traceability from raw synthetic quartz ingot production to final CNC edgework.

Every single optical window and quartz plate ships with an individualized inspection dossier featuring physical micrometer readings, spectrographic transmission curves measured on Shimadzu UV-3600i Plus spectrophotometers, and surface roughness profiles certified below Ra 0.5 nm.

We provide full customs brokerage assistance, EPCG scheme documentation compatibility, and localized DDP logistics solutions to eliminate border clearance delays across Indian dry ports and special economic zones (SEZs).

Technical FAQs

Frequently Asked Questions: Procuring Quartz Windows in India

Comprehensive answers regarding materials, laser thresholds, import tariffs, and custom fabrication tolerances.

What is the lead time for custom-dimensioned quartz plates shipped to Indian industrial centers?
Standard prototype orders (1–20 pieces) are CNC machined, ground, polished, and packaged within 7 to 10 working days. Repeat production batches typically require 2 to 3 weeks. Air express transit to Indira Gandhi International Airport (DEL), Kempegowda (BLR), or Chhatrapati Shivaji Maharaj (BOM) requires an additional 3 to 5 business days, backed by full customs assistance.
How does JGS1 synthetic fused silica compare with imported Corning HPFS 7980 or Suprasil?
JGS1 is functionally and chemically equivalent to Corning 7980 and Heraeus Suprasil 1/2. It exhibits identical optical transmission down to 185 nm, minimal bubble classification (DIN 3140 class 0), refractive index uniformity (Δn ≤ 1×10⁻⁶), and equivalent laser-induced damage thresholds, but provides significant cost advantages and accelerated delivery schedules for the Indian market.
Can BY Photonics deliver quartz windows with custom AR coatings optimized for high-power lasers?
Yes. We deposit specialized PVD dielectric thin films including single-wavelength V-coatings (e.g., 1064 nm, 532 nm, or 355 nm) and broadband anti-reflective (BBAR) coatings spanning UV (248–400 nm), VIS (400–700 nm), and NIR (700–1100 nm). We certify residual reflectance values below 0.1% with laser damage thresholds exceeding 15 J/cm² at 1064 nm (10 ns pulse).
What are the exact compliance, HSN code, and BIS documentation standards for Indian imports?
Quartz plates and optical windows generally clear under Indian Customs Tariff HSN Code 7006.00.00 (glass optical blanks, plates) or 9001.90.90 (unmounted optical elements). We issue all commercial invoices, packing lists with net/gross weights, certificates of origin, and material safety compliance statements in complete alignment with Indian customs standards.
Can you produce non-standard stepped, drilled, or beveled geometry for high-pressure autoclaves?
Yes. Our multi-axis ultrasonic CNC machinery accurately cuts stepped counterbores, high-tolerance bevels, O-ring sealing grooves, and micro-holes into quartz and borosilicate plates without introducing micro-cracks or subsurface stress fractures, ensuring mechanical strength under hydraulic or vacuum pressure.
Extended Optical & Ceramic Portfolio

Precision Laser Cavity, Ceramic & Optical Substrates for Indian Facilities

Complete product portfolio supporting dermatology lasers, fiber-coupled diodes, semiconductor etching, and industrial laser cutting operations across the subcontinent.

Accelerate Your Project with Certified Optical Quartz Windows

Send your CAD drawings, STEP files, or specifications. Our Senior Optical Applications Engineering team will evaluate manufacturability, material grade selection, and deliver an official quotation within 24 working hours.

Send Inquiry Now Direct Engineering Email