Ultra-Narrow Bandpass Filters

Alluxa Inc. has announced 532-nm multicavity ultra-narrow bandpass filters with 0.1-nm bandwidths and OD6 blocking.

The filters feature a full width at half maximum (FWHM) of 0.1 nm while maintaining >80 percent transmission. The ultra-narrow filters can be used to improve signal-to-noise ratios in fields such as lidar for autonomous vehicles, astronomy, laser line cleanup, free-space communication, and fusion research.