1305nm Bandpass Filter | CWL 1305nm, FWHM 30nm, 1.0mm Thickness

1305nm Bandpass Filter | CWL 1305nm, FWHM 30nm, 1.0mm Thickness

The OPTOStokes 1305nm bandpass filter is a precision narrowband optical component engineered with advanced thin-film coatings for reliable near-infrared spectral control. It delivers average transmission greater than 90% across the 1292nm to 1322nm range, with a center wavelength of 1305 ±5nm and a full width at half maximum of 30 ±5nm. The filter provides deep blocking across 800nm to 1700nm with transmission less than 1%, designed for 0 degree angle of incidence. Manufactured with 60/40 surface quality and 1.0mm substrate thickness, it delivers consistent, high-precision performance for demanding analytical and industrial optical systems.

Technical Specifications

Applications

This 1305nm narrowband filter is optimized for near-infrared detection and analysis systems, delivering clean spectral isolation with minimal out-of-band noise. Typical applications include:

• Near-infrared spectrometers and analytical instruments

• Spectrophotometry and optical measurement setups

• Laser wavelength selection and beam conditioning

• Industrial inspection and quality control systems

• Biomedical imaging and optical sensing devices

Customization & Service

OPTOStokes maintains an extensive in-stock selection of standard NIR bandpass filters for immediate shipment, while offering full customization to match exact project requirements. Available modifications include custom dimensions, circular, square and irregular shape processing, and mounting ring assembly options. All products are manufactured to world-class quality and precision standards, with reliable lead times and guaranteed spectral performance across both prototype validation and high-volume OEM production.

Technical Support & Inquiry

Engineering and procurement teams often face challenges such as extended custom lead times, inconsistent coating performance, and limited technical guidance during filter specification. At OPTOStokes, we combine ready-to-ship inventory, precision thin-film coating capabilities, and dedicated optical engineering support to address these pain points. Whether you require sample units for system testing or bulk orders for serial production, our team delivers tailored solutions with predictable timelines and consistent quality.

For custom specifications, volume pricing, or technical consultation, contact our optical specialists at sales@optofilters.com or submit an inquiry directly through our website.