With bandwidths down to 0.1 nm, ultra-narrow bandpass filters from Alluxa also cover the requirements of current quantum technologies, where 0.2 to 0.5 nm are in demand. At the desired wavelength, they offer transmission of over 85% while blocking the remaining wavelengths with an optical density of >OD6. This makes these optics, distributed by LASER COMPONENTS, especially suitable for applications where the signal-to-noise ratio plays a decisive role. In addition to spectroscopy, plasma monitoring or fusion research, these include hydrogen-alpha (H-alpha) emission line filters for astronomy.
Despite the low bandwidth, layer designs with up to five cavities are used to filter out interfering secondary modes in lasers. Their number is crucial for the shape and edge steepness of the bandpass. Since complex interactions occur between these two parameters, LASER COMPONENTS recommends that details in the filter design be closely coordinated with the company's experts.
Multi-cavity bandpass filter with extremely narrow bandwidth
Transmission above 85%
10.10.2023
Contacts


Related News
LASER COMPONENTS UK - Your competent partner for optical and optoelectronic components in the United Kingdom.
Welcome to LASER COMPONENTS UK Ltd., your expert for photonics components. Each product in our wide range of detectors, laser diodes, laser modules, optics, fiber optics, and more is worth every Pound (£/GBP). Our customized solutions cover all conceivable areas of application: from sensor technology to medical technology. You can reach us here:
Goldlay House, 114 Parkway
Chelmsford Essex CM2 7PR
United Kingdom
Phone: +44 1245 491 499
Email: info(at)