BP355nm Bandpass Filter | CWL 355nm±2nm, FWHM 10±2nm, 3.0mm Thickness
The OPTOStokes BP355nm is a high-precision bandpass filter optimized for ultraviolet laser marking and engraving applications. Engineered with advanced ion-assisted thin film coating technology, it provides high transmission greater than 85 percent across the 355–356nm range, with a narrow full width at half maximum of 10±2nm. This 3.0mm thick filter delivers exceptional high OD blocking across the entire 200–1100nm spectrum with transmission less than 1 percent, ensuring clean UV signal isolation for high-power laser systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Center Wavelength (CWL) | 355nm ±2nm |
| Transmission Band | 355–356nm, transmission greater than 85 percent |
| Full Width at Half Maximum (FWHM) | 10±2nm |
| Blocking Range | 200–1100nm, transmission less than 1 percent |
| Substrate Thickness | 3.0mm |
Applications
This high-performance narrowband deep UV bandpass filter is specifically engineered for applications requiring precise spectral selection at 355nm, a critical wavelength for high-precision laser processing. Its exceptional optical performance and high laser damage threshold make it ideal for:
UV laser marking and engraving machines
355nm laser cutting and micro-machining systems
Semiconductor wafer processing and lithography
UV laser drilling and precision material processing
Deep UV spectroscopic analysis instruments
High-precision optical measurement equipment
Customization & Service
OPTOStokes offers comprehensive custom optical filter solutions to meet your exact laser processing requirements. We manufacture deep UV bandpass filters in standard circular, square and custom irregular shapes, with optional precision mounting rings for seamless integration into your laser systems. Our extensive in-stock inventory ensures fast shipping for standard specifications, while our advanced cleanroom manufacturing capabilities deliver custom orders with reliable, predictable lead times. All products are manufactured to world-class quality standards and undergo rigorous 100% optical and laser damage testing before shipment.
Pain Points & CTA
Laser processing teams often face critical challenges: insufficient UV transmission efficiency, poor broadband blocking performance, and long lead times for custom high-power UV components. These issues can reduce processing speed, increase laser power consumption, and shorten equipment lifespan. At OPTOStokes, we solve these problems with our extensive ready-to-ship inventory, proprietary high-damage-threshold coating technology, and dedicated technical support team. Whether you need a single prototype for testing or high-volume production runs, we deliver precision optical components on time, every time.
For detailed datasheets, volume pricing, or to discuss your specific filter requirements, contact our expert team at [email protected] or submit an inquiry through our website today.
