Diverse_Applications

Features of the Liquid-Crystal Fabry-Perot Interferometer

Diverse Applications

Spectroscopy, Imaging (Raman, Fluorescence, Non-excited, and Hyperspectral), Sensing, Astronomy/Astrophysics/Aeronomy, LIDAR, Telecommunications (WDM, Add-Drop, Spectrum Analysis, Channel Monitoring), Laser tuning

Spectral Stability

Repeated electronic scans across four orders of a high resolution LCFP filter during a 10-hour period demonstrate stability greater than 0.01 part in 10³.

Spectral Stability

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Thermal Stability

Temperature-stabilized housings maintain LCFP temperature to better than 0.05°C for maximum performance.

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High Throughput

CPI guarantees transmission of at least 40% of polarized light, and has achieved transmissions as high as 80%.

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Standard or Custom Optical Coatings

Standard coatings include 500 nm - 700 nm, 700 nm - 1100 nm, and 1510 nm - 1630 nm. Custom coatings are available in the VIS, NIR, IR, MWIR, and LWIR.

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Image Quality

A test target, illuminated with low pressure sodium light and viewed through a LCFP with 3 nm resolution, shows the remarkable image quality of the LCFP.

Image Quality

Image Quality

Segmented Tunable Filter

CPI's Segmented Tunable Filter received a prestigious R&D100 Award distinguishing it as one of the 100 most technologically significant products introduced into the marketplace in 2009. This electro-optical filter is an innovation capable of simultaneously collecting spatial and spectral information while providing high spectral resolution and rapid tuning.  It dynamically sorts light into multiple discreet narrow spectral bands.   Based on Fabry-Perot technology, this next-generation tunable optical filter achieves multiple, independently tunable filter segments on a single substrate. The patented technology is intended for use as the key dispersive element in hybrid multi-spectral imaging systems.

  • Extension of award-winning LCFP technology
  • Multiple independently-tunable segments on a single substrate
  • Arbitrary size, shape, and number of segments
  • Each segment can be tuned to any wavelength within the operating range of the filter
  • Simultaneous collection of spatial and spectral information
  • Ideal for multi-spectral and hyper-spectral imaging applications
  • Very high spectral resolution
  • Rapid, solid-state tuning