Selectable Bandwidth Tunable Optical FilterKey Features
- Tuning range over the Visible Spectrum
- Selectable bandwidth with three sizes included: narrow, medium and wide
- C-mount threads
- Entire system included: optical head, controller and software
- Multiple control interface options
Meadowlark Optics is pleased to present its new tunable optical filter with user selectable bandwidth and a variable full width at half maximum (FWHM). By utilizing multiple liquid crystal variable retarders and polarizers, this tunable filter allows the user to switch between any wavelength from 420 to 730 nm. In addition to the tunability of wavelength, this filter also allows the user a choice of three different bandwidth sizes at each wavelength: narrow, medium and wide. These extra sizes in bandwidth allow the customer to change the transmission of light through the tunable optical filter and the spectral transmission characteristics. By having a wider bandwidth, one can increase the overall transmission of broadband light whereas the narrow FWHM can pass only a few wavelengths from a broadband light source. From a mechanical standpoint, this filter can be mounted in one of two ways. The clear aperture has C-mount threads around it, allowing for direct interface to any male C-mount connectors. For the optics bench user, the bottom has post holes on a standard 1”grid with 8 - 32 threads, allowing for easy installation on any optics bench or breadboard. All tunable optical filters from Meadowlark Optics come with three components: the optical head, the controller, and the software necessary to run the tunable optical filter. This software can be installed and run on any Windows based PC through either the USB or serial port while using the provided FilterDRIVE software or commands in C++, MatLab or LabVIEW. Meadowlark optics excels at providing customized Tunable Optical Filters for a variety of applications. This filter can also be customized\ to achieve different bandwidths, wavelength ranges or any of theother specifications. Please contact your Meadowlark Optics Sales Engineer for assistance or a custom quote.