ZOLIX OBCL Series Non-Polarizing Laser Beamsplitter Cubes
| Brand | ZOLIX |
|---|---|
| Origin | Beijing, China |
| Manufacturer Type | OEM Manufacturer |
| Product Origin | Domestic (China) |
| Model | OBCL |
| Pricing | Available Upon Request |
| Beam Splitting Ratio | 50% R / 50% T |
| Surface Flatness | λ/4 @ specified wavelength |
| Cube Edge Lengths | 10 mm, 20 mm |
| Coating Design | Laser-line specific, non-polarizing, dielectric multilayer |
| Substrate Material | UV-grade fused silica (for UV models), BK7 (for visible/NIR), or custom IR-grade substrates |
| Angular Deviation | ≤10 arcminutes |
| Wavelength Options | 266 nm, 355 nm, 405 nm, 488 nm, 514 nm, 532 nm, 632.8 nm, 1064 nm, 1300 nm, 1550 nm |
| Broadband Models | OBCB series covering 450–1550 nm in defined bands |
Overview
The ZOLIX OBCL Series Non-Polarizing Laser Beamsplitter Cubes are precision-engineered optical components designed for high-fidelity beam division in demanding laser-based instrumentation, interferometry, confocal microscopy, and quantum optics applications. Unlike polarizing beamsplitters, these cubes maintain consistent reflectance and transmittance across orthogonal polarization states—eliminating polarization-dependent intensity fluctuations and ensuring stable power distribution in unpolarized or mixed-polarization light paths. Constructed using a cemented cube architecture with dielectric thin-film coatings deposited on optically contacted prisms, each OBCL unit delivers a nominal 50:50 splitting ratio with minimal wavefront distortion (λ/4 surface flatness) and low angular deviation (≤10 arcminutes). The modular naming convention—OBCL[EdgeLength]-[Wavelength]-R5—enables rapid selection for discrete laser lines, while complementary OBCB broadband variants support multi-wavelength systems requiring spectrally uniform performance.
Key Features
- Non-polarizing design ensures identical R/T response for s- and p-polarized components—critical for applications involving unpolarized sources or polarization-sensitive downstream optics.
- Laser-line optimized dielectric coatings provide >99.5% average reflectance at design wavelength with <0.2% absorption loss, enabling high-power handling up to 500 W/cm² (CW) for 1064 nm models.
- UV-grade fused silica substrates (for 266 nm and 355 nm variants) exhibit superior transmission (>90%) and laser-induced damage threshold (LIDT > 5 J/cm², 10 ns pulse) compared to standard BK7.
- Cube edge lengths of 10 mm and 20 mm accommodate compact optical breadboards and industrial OEM integration; custom sizes (5–30 mm) available upon request.
- Low residual stress and matched thermal expansion coefficients between prism halves minimize beam walk-off under thermal cycling (±0.5 µrad/°C stability).
- Compliant with ISO 10110-7 surface quality standards (scratch-dig 10-5) and RoHS 2011/65/EU material restrictions.
Sample Compatibility & Compliance
These beamsplitters are compatible with continuous-wave (CW) and pulsed laser sources operating from deep ultraviolet (266 nm) through near-infrared (1550 nm). UV variants use synthetic fused silica (SFS) to mitigate solarization effects; visible and NIR models employ precision-polished BK7 glass with high homogeneity (Δn < 5×10⁻⁶). All units meet ISO 9001:2015 manufacturing controls and undergo 100% spectral verification via calibrated VUV-VIS-NIR spectrophotometry (200–1700 nm range). For regulated environments—including FDA-regulated analytical instruments and GLP-compliant metrology labs—the cubes support traceable calibration documentation (NIST-traceable reference standards) and optional cleanroom packaging (ISO Class 5).
Software & Data Management
While the OBCL cubes are passive optical elements, ZOLIX provides comprehensive spectral performance data in machine-readable formats (CSV, SDF) for integration into optical design software including Zemax OpticStudio, CODE V, and FRED. Each shipment includes a certificate of conformance listing measured R/T spectra at ±0.5 nm resolution, wavefront error (interferometrically verified), and coating durability test results (per MIL-C-48497A abrasion and humidity cycling). For enterprise procurement workflows, ZOLIX supports EDI-based order tracking and integrates with SAP Ariba and Oracle Cloud Procurement for automated PO reconciliation and lot-level traceability.
Applications
- Laser cavity output coupling and intra-cavity beam sampling in DPSS and fiber laser systems.
- Reference path splitting in Michelson and Mach-Zehnder interferometers for displacement metrology and gravitational wave detection prototypes.
- Multi-channel fluorescence excitation routing in confocal and super-resolution microscopes (e.g., simultaneous 488/561/640 nm excitation).
- Beam conditioning in optical coherence tomography (OCT) engines requiring polarization-insensitive signal splitting.
- Quantum key distribution (QKD) setups where polarization fidelity must be preserved across beam paths.
- Industrial machine vision illumination systems requiring stable intensity ratios independent of source polarization drift.
FAQ
What is the maximum incident angle tolerance for optimal 50:50 splitting performance?
For all OBCL models, the specified R/T ratio is guaranteed within ±2° of normal incidence. Beyond this range, polarization-dependent deviations increase above ±3%—consult ZOLIX’s angular sensitivity curves for your specific wavelength.
Can these cubes be used in ultra-high-vacuum (UHV) environments?
Yes—UV-grade fused silica variants are UHV-compatible (outgassing rate <1×10⁻⁹ Torr·L/s·cm² per ASTM E595); BK7 models require optional vacuum-compatible epoxy bonding (ZOLIX Part #OBCL-VAC-BOND).
Is there a version with AR-coated exit faces to reduce ghost reflections?
Standard OBCL cubes include broadband AR coatings (R < 0.25% per surface, 400–700 nm) on all uncoated faces; custom multi-band AR stacks (e.g., 266/532/1064 nm triple-band) are available under OEM agreement.
How is coating durability validated for industrial laser applications?
All laser-line coatings undergo accelerated lifetime testing per ISO 9211-4:2018, including 1000-hour humidity exposure (85% RH, 85°C), 500-cycle thermal shock (-40°C to +85°C), and laser damage threshold certification per ISO 21254-1.
Do you offer mounts or kinematic adapters for OBCL cubes?
ZOLIX supplies SM1-threaded cage-compatible mounts (Model OBCL-MNT-SM1) and kinematic tip/tilt platforms (OBCL-KTP-2D) with ±2 mrad adjustability and lockable micrometers—fully documented in the ZOLIX Optical Mounting Handbook v3.2.
