VBA0010-780
A variable beam splitter/attenuator consists of a polarizing beam-splitter prism and a zero-order half-wave plate. Rotating the half-wave plate continuously varies the transmittance of linearly polarized light. For incident linearly polarized light, the transmission/reflection ratio (T:R) varies continuously from 1:99 to 95:1. It is mainly used in holography, interferometry, and related applications.
Specification Snapshot
Diameter
25.4 mm
Length
31.75 mm
Clear Aperture Dimension
10mm
Request a Quote
Download Datasheet
Overview
A variable beam splitter/attenuator consists of a polarizing beam-splitter prism and a zero-order half-wave plate. Rotating the half-wave plate continuously varies the transmittance of linearly polarized light. For incident linearly polarized light, the transmission/reflection ratio (T:R) varies continuously from 1:99 to 95:1. It is mainly used in holography, interferometry, and related applications.
Specifications
| Parameter | Value |
|---|---|
| Diameter | 25.4 mm |
| Length | 31.75 mm |
| Clear Aperture Dimension | 10mm |
| Design Wavelength | 780 nm |
| Diameter Tolerance | +0/-0.2mm |
| Surface Quality | 60/40 |
| Transmitted Wavefront Distortion-PBS [@632.8nm] | <λ/4@632.8nm |
| Transmitted Wavefront Distortion-Waveplate [@632.8nm] | <λ/8@632.8nm |
| Beam Deviation | <10minutes |
| Adjustable Transmittance-to-Reflectance Ratio T/R Range [Incident linearly polarized light] | 1:99-95:1 |
| Waveplate Retardance Accuracy | typical:λ/300 (Typical Value) |
| Extinction Ratio Tp/Ts | Tp/Ts>1000:1 |
| Antireflection Coating-Residual Reflectance per Surface [Single Surface] | Residual Reflectance per Surface R<0.25% |
| Damage Threshold [20ns,20Hz,@1064nm] | >500mJ/cm²,20ns,20Hz,@1064nm |
Key Features
★ Transmission/reflection ratio (T:R) from 1:99 to 95:1 ★ High extinction ratio Tp/Ts>1000:1 ★ Zero-order half-wave plate ★ Two M4 threaded holes for convenient mounting ★ RoHS compliant
Datasheet
Product Datasheet
PDF
Supplier Information
Union Optic Inc., founded in 2004, is a high-tech company located in Optics Valley of China, specializing in research and development, production and sales of precision optical components.
Union Optic has established a comprehensive quality management system and perfect rules and regulations since its foundation. By using enterprise ERP management system, Union Optic offers full product lifecycle support across a range of process, production, quality control, sales, logistics and finance into informatization management to keep it on a correct and efficient pace.
Contact Us
Loading...
GetExperimental Plan
Name
Phone
+86
Organization
Use Case

Global Photonics Products
Database Platform
Database Platform
With 16 years of experience, we provide high-quality products and services to universities, research institutes, and industry.
50+ Detailed Categories · 3,000+ Global Brands · 100,000+ Photonics Products
1 Million+
In-depth analysis of professional academic resources in photonics
300,000
ProductsDatasheets Available Free
We will keep your personal information strictly confidential.
Product Quote
+86
* Select the quoting party:
By submitting, you agree to the User Service Agreement and Privacy Policy