Engineered for extreme fluence resistance, tight beam propagation fidelity, and thermal shock endurance in mission-critical optoelectronic assemblies.
As microelectronics approach physical transistor limits, optical interconnections, photonics integrated circuits (PIC), and extreme ultraviolet (EUV) lithography systems require components machined with sub-micron geometric tolerances and atomic-scale surface roughness.
Co-Packaged Optics (CPO) architectures require high-density arrays of micro-grooved substrates, capillary alignment sleeves, and fiber end caps. Micro optical components bridge the interface between silicon photonic dies and external single-mode fibers with insertion losses under 0.15 dB.
High-average-power diode-pumped solid-state (DPSS) systems rely on samarium-doped flow tubes and diffuse PTFE/ceramic reflectors. These components filter 1064 nm parasitic laser oscillations while maximizing 808 nm pump absorption efficiency in harsh thermal environments.
Sub-5nm semiconductor wafer manufacturing depends on ultra-high purity synthetic fused silica (JGS1) and fluorine-doped capillaries. These components resist excimer laser degradation at 193 nm (ArF) and 248 nm (KrF), preventing radiation-induced compaction.
Operating over 3,000 square meters of specialized cleanroom and machining facilities in Tianjin, China. BY Photonics integrates cold optical working, CNC ultrasonic grinding, oxyhydrogen micro-flame shaping, and precision capillary redrawing under one ISO 9001 certified roof.
Attained on redrawn quartz capillaries down to 10 μm inner diameters.
Measured at 632.8 nm using Zygo Verifire laser Fizeau interferometry.
Meets military MIL-PRF-13830B and ISO 10110 high-fluence laser standards.
For custom sapphire and fused quartz components operating in vacuum furnaces.
Hard, brittle materials like monocrystalline sapphire, CVD diamond, and dense laser ceramics require non-thermal ultrasonic vibration-assisted grinding. This eliminates subsurface micro-fracturing and prevents edge chipping on micro-features smaller than 200 μm.
Precision optical flow cells, semiconductor diffusion boats, and triple-bore laser cavity flow tubes undergo automated oxyhydrogen flame hot-working. Annealed in multi-zone computer-controlled lehrs to relieve residual stresses, delivering birefringence under 5 nm/cm.
Proprietary down-draw tower technology draws synthetic quartz preforms into circular, square, rectangular, and D-shaped multi-bore capillaries. Concentricity and roundness ratios exceed 99.5%, supporting fiber optic ferrules and microfluidic cytometers.
Choosing the correct optical medium requires matching transmission spectra, refractive index homogeneities, laser-induced damage thresholds (LIDT), and thermal shock parameters to the operating environment.
| Material Classification | Transmission Band | Refractive Index (nd) | Thermal Expansion (×10-7/K) | Knoop Hardness (kg/mm²) | Target Applications |
|---|---|---|---|---|---|
| JGS1 Synthetic Fused Silica Ultra-pure SiCl4 synthetic quartz |
185 – 2,500 nm | 1.4585 | 5.5 | 520 | DUV laser windows, lithography stepper viewports, micro-endoscopes |
| JGS2 Optical Fused Quartz Refined natural crystal quartz |
220 – 2,500 nm | 1.4585 | 5.5 | 520 | Spectroscopy cuvettes, laser cavity flow tubes, wafer processing boats |
| JGS3 Infrared Grade Fused Quartz Dehydroxylated low-OH quartz (<5 ppm OH) |
260 – 3,500 nm | 1.4585 | 5.5 | 520 | IR sensors, thermal pyrometry viewports, mid-IR gas chromatography |
| Monocrystalline Sapphire (Al2O3) C-Plane, A-Plane, or R-Plane single crystal |
170 – 5,500 nm | 1.768 | 53 – 66 | 2,200 | IPL aesthetic light guides, aerospace pressure viewports, ballistic lenses |
| Samarium-Doped Glass (Sm3+) 10% wt Sm2O3 host optical silicate |
Filters 1064 nm | 1.5200 | 72 | 480 | Laser head solid-state flow tubes, flashlamp filter sleeves, Nd:YAG cavities |
| Spectralon-Grade Sintered PTFE Micro-porous high-reflectivity fluoropolymer |
250 – 2,500 nm | 1.3500 | 1,200 | Shore D 55 | Diode-pumping diffuse reflectors, integrating spheres, laser pump blocks |
* Test methodologies conform to ISO 12123 (raw optical glass bubbles and inclusions) and ISO 10110-3 (optical material homogeneity). Certification dossiers provided with every production lot.
Custom micro optical components engineered for severe operating environments, extreme vacuum levels, and intense optical fields across North American, European, and Asian supply chains.
From Candela and DEKA replacement pump cavities to custom Intense Pulsed Light (IPL) sapphire light guide blocks, BY Photonics manufactures components with sub-nanometer surface roughness (Ra < 0.5 nm) to guarantee skin contact cooling while transmitting broadband optical pulses without thermal breakdown.
Autonomous vehicle LiDAR and defense optical targeting require sapphire and fused silica micro-windows that endure aerodynamic friction, sand abrasion, and rapid thermal shocks from -55 °C to +250 °C. Multi-layer anti-reflective (AR) diamond-like carbon (DLC) coatings provide environmental survivability.
Wafer transfer boats, quartz carriers, and vacuum viewport windows operate in reactive ion etching (RIE) and chemical vapor deposition (CVD) environments. Constructed with flame-polished, fire-sealed joints, BY Photonics quartzware prevents gas entrapment and particle shedding down to ISO Class 4 cleanliness.
Zero-defect manufacturing supported by calibrated laser interferometers, non-contact coordinate measuring machines (CMM), spectrophotometers, and stringent international standards.
Our engineering group interprets and machines optical blueprints strictly compliant with ISO 10110 standards, defining stress birefringence (0/), material inclusions (1/), surface form error (3/), centering error (4/), surface imperfections (5/), and laser damage threshold (6/).
Every optical batch undergoes 100% inspection on critical dimensions utilizing Zygo Verifire Phase-Shifting Interferometers, Taylor Hobson optical profilometers, PerkinElmer Lambda 1050+ UV/Vis/NIR dual-beam spectrophotometers, and Keyence 4K non-contact CMM optical systems.
All processed optical glass, fused silica, ceramics, and PTFE formulations are fully certified to RoHS (2011/65/EU and 2015/863) and REACH (EC 1907/2006) directives. Cleanroom ultrasonic washing and clean packaging prevent cross-contamination during intercontinental transit.
Advancing beyond conventional sub-millimeter optics into wafer-scale nano-structuring, femtosecond laser volumetric machining, and monolithic multi-material photonics.
Transitioning from individual component fabrication to 200 mm and 300 mm quartz wafer-level processing. Wafer-scale micro-lens imprint lithography and precision diced micro-arrays reduce assembly cycle times for 800G and 1.6T datacom optical transceivers.
Utilizing femtosecond laser pulses to modify the internal microstructure of fused silica followed by chemical selective etching. Enables monolithic 3D micro-channels, embedded optical waveguides, and complex microfluidic lab-on-a-chip geometries impossible with physical tooling.
Developing flat sub-wavelength nanostructures etched directly into fused silica and sapphire substrates. These meta-surfaces replace bulky multi-lens assemblies in high-energy laser systems, demonstrating laser-induced damage thresholds exceeding 20 J/cm² at 1064 nm (10 ns pulse).
Custom configured to your exact CAD and print specifications: UV optical windows, high-purity fabrication parts, and QBH fiber end caps machined for peak optical performance.
Detailed responses to critical engineering inquiries regarding dimensional limits, material selection, fabrication tolerances, and cleanroom handling.
We achieve inner diameters down to 10 μm with dimensional tolerances of ±0.001 mm (±1.0 μm) on dedicated quartz capillary redrawing towers. Outer diameters range from 80 μm upward. For high-aspect-ratio capillary applications, wall thickness can be held to 15 μm depending on overall length, maintaining cross-sectional circularity and concentricity exceeding 99.2%.
JGS1 is synthetic high-purity fused silica (SiCl4 derivative) optimized for deep ultraviolet (DUV) transmission from 185 nm to 2,500 nm, virtually free of bubbles and metallic impurities. JGS2 is optical-grade fused quartz manufactured by fusing natural high-purity crystal sand, ideal for 220 nm to 2,500 nm visible/NIR applications. JGS3 is vacuum-melted infrared-grade quartz with residual hydroxyl (OH) content strictly reduced under 5 ppm, eliminating the strong 2,730 nm absorption band.
Super-polished synthetic fused silica windows and QBH quartz end caps consistently demonstrate certified pulsed laser damage thresholds exceeding 15 to 20 J/cm² at 1064 nm (10 ns pulse width, 20 Hz single-shot testing). For continuous wave (CW) industrial fiber laser systems at 1070 nm, parts routinely handle power levels exceeding 12 kW without thermal lensing, verified under ISO 21254 laser damage testing.
Samarium-doped optical glass exhibits sharp, resonant spectral absorption centered at 1064 nm while offering near-total transmission at the primary diode pump bands around 808 nm. When utilized in flow tubes and laser cavity jackets, it absorbs unextracted parasitic 1064 nm light, suppressing Amplified Spontaneous Emission (ASE) and preventing thermal runaway within the Nd:YAG or Nd:glass gain medium.
Spectralon-grade sintered PTFE delivers superior diffuse reflectance (approaching 99.2% from 400 nm to 1500 nm) via bulk volumetric scattering, optimizing pump uniformity. However, high-density glazed ceramic laser reflectors (such as those used in DEKA laser pump chambers) offer superior thermal dissipation and higher physical resistance to coolant erosion in high-repetition pulsed systems.
We accept 3D native and neutral formats including STEP (.stp), IGES (.igs), Parasolid (.x_t), and SolidWorks (.sldprt), paired with 2D dimensioned blueprints in PDF, DWG, or DXF formats indicating critical optical clear apertures, surface tolerances (ISO 10110 / MIL-PRF-13830B), coating bandwidths, and edge chamfers. Engineering feedback is returned within 24 hours.
Send your CAD models or optical blueprints directly to our technical engineering team. We provide a complete Design for Manufacturability (DFM) assessment, material purity report, and quotation within 24 working hours.