High Power Polarization Optical Components from Union Optic

Founded in 2004, Wuhan Union Optic Inc. is a National Specialized, Refined, Unique & Innovative "Little Giant" high-tech enterprise located in Wuhan East Lake High-Tech Development Zone. We operate a 21,000 sq.m. manufacturing base with over 500 employees, 25% of whom are professional optical engineers, process specialists and quality inspectors.

We own a complete industrial chain covering optical simulation design, ultra-precision polishing, special optical coating and precision assembly, equipped with imported processing & interferometric testing equipment and standardized QC system. We deliver high-precision custom optical components for lab prototype small batches, as well as mass-produced optics for laser processing, medical photonics and precision measurement industries. This article introduces two core polarization components optimized for high-power laser systems: WPS2120 ultra-thin single-crystal half-wave plate and PBS1325 glue-free polarizing beam splitter cube.

WPS2120-355-M25.4: 355nm Ultra-Thin Single-Mode Quartz λ/2 Waveplate

Ideal for UV High-Power Lasers & Ultraviolet Micro-Machining

This single-piece quartz half-wave plate features ultra-thin wafer design and outstanding laser-induced damage threshold (LIDT), serving as core polarization control element for 355nm UV optical paths.

Key Features

1. Ultra-thin wafer thickness only 0.054mm, minimum customizable thickness down to 0.03mm to save system space;
2. High LIDT >10 J/cm² @1064nm, 20ns pulse, reliable under high-power UV nanosecond lasers;
3. Wide operating spectrum, stable performance across temperature range, 10° wide acceptance angle for easy alignment;
4. Dual-side AR coating, residual reflectance <0.2% at 355nm to reduce power loss and stray light;
5. Pre-mounted φ25.4 metal holder, clear aperture 18mm, surface quality 20/10, wavefront distortion <λ/8 @632.8nm;
6. Parallelism 1 arcsecond, retardation accuracy λ/300, RoHS compliant.

Core Specifications

• Material: Synthetic Quartz Crystal | Retardation: λ/2 Single Order
• Design Wavelength: 355 nm | Wafer Diameter: 20 mm
• LIDT: >10 J/cm² (1064 nm, 20 ns, 20 Hz)

Typical Applications

355nm UV laser marking, femtosecond/nanosecond micro-processing, UV spectroscopy, semiconductor wafer inspection, laser interferometry

PBS1325-515-532: Glue-Free Polarizing Beam Splitter Cube for Green Lasers

Optimized for 515~532nm Green Laser LiDAR & Precision Metrology

25.4mm standard PBS cube adopts UV fused silica optical contact bonding without organic glue, eliminating glue burning & delamination under high laser power.

Key Features

1. Glue-free optical contact construction, high LIDT >5 J/cm² @1064nm, compatible with CW & pulsed green lasers;
2. Ultra-high extinction ratio Tp/Ts >1000 for pure polarization separation; Tp>95%, Rs>99%;
3. AR coating on all four outer surfaces, dedicated PBS polarizing coating on bonding face, beam deviation only 3 arcminutes;
4. Wavefront error <λ/4, dimension tolerance ±0.2mm, consistent mass production performance, RoHS compliant.

Core Specifications

• Substrate: UV Fused Silica | Size: 25.4×25.4×25.4 mm
• Operating Band: 515~532 nm green spectrum
• Extinction Ratio: Tp/Ts >1000

Typical Applications

Green fiber lasers, LiDAR transceiver optics, optical interferometers, biological fluorescence microscopy, laser levelling instruments, precision metrology equipment

Customization & Mass Production Support

Union Optic provides full customization on wavelength, dimension, LIDT grade and coating recipes, including zero-order waveplates, multi-band PBS cubes and high-power polarization optics. We support rapid prototype sampling, small-batch trial run and stable volume delivery. Every component undergoes strict interferometer, polarimeter and LIDT testing with official inspection reports.

If you require complete datasheets, optical path evaluation or quotation, please reach out to our photonicssource sales team.