Which glass and crystal materials can BY Photonics machine?

We machine JGS1 UV fused silica, JGS2 and JGS3 fused quartz, borosilicate glass, optical glass, optical color filter glass, infrared glass, samarium- and cerium-doped glass, sapphire, PTFE-based diffuse reflector material and laser ceramics.

What is the difference between JGS1, JGS2 and JGS3 quartz glass?

JGS1 is synthetic UV-grade fused silica with high transmission from about 185 nm. JGS2 is fused quartz for the visible range with good UV transmission from about 220 nm. JGS3 is infrared-grade fused quartz with low OH content that transmits up to about 3,500 nm.

Which drawing formats should I send for a custom part?

STEP, IGES, DWG, DXF or a dimensioned PDF are all accepted. Please include material, quantity, critical tolerances, surface quality, coating and the operating environment of the part.

How quickly will I receive engineering feedback?

Our engineers review complete drawings and return a manufacturability assessment within 24 hours on working days.

Do you support prototypes and export shipping?

Yes. We support prototype and low-volume orders as well as repeat batch production, and our components are shipped to customers worldwide.

Custom Sapphire Glass Manufacturer & Supplier

Precision single-crystal sapphire substrate machining, deep UV-to-MWIR viewing optics, and extreme environmental encapsulation solutions engineered to micron-grade tolerances.

Featured Optical & Engineering Components

Explore high-performance customized solutions machined from optical single-crystal sapphire, fused silica, and engineered laser ceramics.

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Material Physics & Sapphire Substrate Engineering

A technical overview of single-crystal aluminum oxide (Al₂O₃) crystallographic planes and processing thresholds for optoelectronic deployment.

C-Plane (0001) Optimization

Zero birefringence along the optical axis makes C-plane sapphire the standard for optical windows, laser viewports, and GaN LED substrate epitaxy. It ensures maximum beam fidelity under high thermal flux.

A-Plane (11-20) & R-Plane (1-102)

R-plane sapphire provides uniform dielectric constant profiles for high-frequency microelectronic circuits, while A-plane cuts resist twinning under shock loading in downhole and ballistic environments.

Ultra-Precision Finishing

Utilizing Chemical Mechanical Polishing (CMP) coupled with colloidal silica slurries, surface roughness is maintained at Ra < 0.2 nm, reducing laser scatter losses below 0.05% at 1064 nm.

Property Parameter	Single-Crystal Sapphire (Al₂O₃)	Synthetic Fused Silica (JGS1)	Borosilicate Float Glass
Crystal Structure	Hexagonal (Trigonal)	Amorphous (Isotropic)	Amorphous (Isotropic)
Transmission Range	170 nm – 5,500 nm (UV to MWIR)	185 nm – 2,500 nm (Deep UV)	350 nm – 2,500 nm
Hardness (Mohs / Knoop)	Mohs 9 / 2000 kg/mm²	Mohs 5.5–6.5 / 600 kg/mm²	Mohs 6 / 480 kg/mm²
Max Service Temperature	1,800 °C (Continuous) / 2,000 °C (Peak)	~1,100 °C	~450 °C
Thermal Conductivity	35 W/(m·K) @ 25°C	1.38 W/(m·K)	1.14 W/(m·K)
Compressive Strength	2,000 MPa	1,100 MPa	~700 MPa

Macro Industry Solutions

Deploying structural and optical sapphire profiles across high-reliability platforms demanding resistance to heat, pressure, and corrosive chemistry.

Semiconductor Lithography & Etch

Dry-etch chambers utilize our high-purity sapphire viewports and lift pins due to complete resistance against fluorinated plasmas (CF₄, NF₃), preventing chamber micro-contamination and tool drift.

Aesthetic Laser & Medical Systems

Medical-grade IPL blocks and laser flowtubes leverage sapphire's 35 W/(m·K) thermal conductivity to provide continuous skin contact cooling, eliminating thermal shock degradation during pulsed operation.

Aerospace, Defense & Extreme Deep-Sea

Engineered to withstand external mechanical shocks exceeding 100 MPa, our pressure viewports protect multi-spectral EO/IR pods, downhole telemetry sensors, and deep-submersible view systems.

Smart Factory 4.0: Tianjin Production Resilience

Vertically integrated cold machining, Kyropoulos crystal sourcing, and real-time interferometric metrology within our ISO-compliant manufacturing center.

15+

Years Optical Machining History (Since 2010)

3,000 m²

Integrated Precision Workshop Footprint

120+

Multi-Axis CNC, Grinding & Polishing Stations

< 24h

Rapid Engineering DFM & Tolerance Review

Full In-House Cold Processing

By eliminating third-party sub-contracting for core slicing, contour edging, high-speed multi-axis diamond CNC routing, and double-sided planetary lapping, we maintain full dimensional traceability.

Metrology & Clean Packaging

Every optical component undergoes wavefront distortion checks via Zygo interferometry, Taylor Hobson surface profilometry, and ultrasonic Class 1000 cleaning prior to vacuum blister sealing.

Scalable Supply Agility

Our raw sapphire crystal inventory is managed via digital ERP buffers, shielding global OEMs from raw ingot supply bottlenecks while allowing scaling from one-off prototypes to 100,000+ pcs/month runs.

Global Procurement Demands & Regulatory Compliance

Ensuring cross-border transparency, technical conformity, and traceable documentation for tier-1 supply systems.

RoHS, REACH & Conflict Minerals

All synthetic sapphire ingots and quartz glasses are 100% compliant with EU RoHS 2.0 (Directive 2011/65/EU) and REACH (EC 1907/2006), certified free of restricted heavy metals and Conflict Minerals.

Complete Inspection Documentation

Orders are shipped with standardized First Article Inspection (FAI) reports, spectral transmission curves, 3D coordinate CMM dimension checks, and raw ingot Certificate of Conformance (CoC).

Engineering Localized Support

Our engineering support team offers drawing consultations in English, managing DDM / STEP conversions and advising on chamfers and micro-crack mitigation to optimize production yield.

Technology Roadmap & Next-Gen Optical Capabilities

Continuous investment in cutting-edge fabrication tools to meet emerging requirements in high-power optics and quantum systems.

Phase I: Current Benchmark

Atomic-Scale Polishing

Consistent achievement of Ra < 0.2 nm roughness, flatness up to λ/10, and scratch-dig 20-10 on standard sapphire geometries up to 300 mm.

Phase II: Near-Term Rollout

High LIDT Hard Coatings

Ion-Beam Sputtered (IBS) multi-layer anti-reflective coatings achieving laser-induced damage thresholds (LIDT) > 15 J/cm² @ 1064 nm (10 ns pulse).

Phase III: Advanced Integration

Sapphire-Metal Direct Bonding

Flux-free reactive diffusion bonding of sapphire windows directly to titanium and Kovar sleeves for ultra-high vacuum (UHV) viewports.

Phase IV: Frontier Roadmap

Micro-Structured Sapphire Optics

Direct femtosecond laser writing of internal sub-surface waveguides and diffractive micro-arrays for quantum sensors and photonic devices.

Precision Quartz, Reflectors & Custom Viewplates

Expanded catalog of vacuum, laser cavity, and analytical glassware precision-machined to user-defined drawings.

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Technical FAQ: Optical Sapphire & Hard Glass Fabrication

Expert answers addressing tolerances, crystallographic orientation, and production engineering parameters.

How do crystallographic planes (C-Plane, A-Plane, R-Plane) influence component performance?

C-Plane sapphire (0001) is oriented along the c-axis where optical birefringence is zero, making it ideal for precision windows, polarization-sensitive sensors, and laser optics. A-Plane (11-20) exhibits uniform mechanical hardness suited for wear assemblies, while R-Plane (1-102) is predominantly utilized for silicon-on-sapphire (SOS) microelectronics due to matching crystal lattices.

What dimensional and geometric tolerances can BY Photonics routinely achieve on sapphire?

Our standard CNC and planetary lapping tolerances reach ±0.02 mm for diameter/dimensions, with precision limits held to ±0.005 mm upon request. Optical surfaces achieve transmitted wavefront distortion up to λ/10 @ 632.8 nm, parallelism < 10 arcseconds, and surface roughness Ra < 0.2 nm via Chemical Mechanical Polishing (CMP).

How does sapphire glass perform in extreme thermal and hydrofluoric acid (HF) environments?

Sapphire maintains structural integrity up to continuous service temperatures of 1,800 °C. Chemically, it is inert to almost all industrial acids and alkalis up to 300 °C. While pure fused quartz will dissolve rapidly in Hydrofluoric Acid (HF), sapphire exhibits minimal etch rates at ambient temperatures, making it the premier material for semiconductor etching chambers.

What is the engineering review workflow and prototype lead time?

Upon receiving 2D drawings (PDF/DXF/DWG) or 3D models (STEP/IGES), our engineering team conducts a complete Design for Manufacturability (DFM) review within 24 working hours. Prototype runs typically ship within 2 to 3 weeks, while scalable batch quantities are scheduled according to JIT inventory requirements.

Can BY Photonics apply optical coatings to custom sapphire parts?

Yes. We offer electron-beam and Ion-Assisted Deposition (IAD) coatings, including Broadband Anti-Reflective (BBAR) covering UV (248-355nm), VIS (400-700nm), NIR (1064nm), and MWIR (3-5μm) spectrums, yielding surface reflections below 0.25% per surface.