Long pass filters transmit a wide spectral band of long wavelength radiation while blocking short wavelength radiation. Short pass filters transmit a wide spectral band of short wavelength radiation and block long wave radiation

Optical bandpass filters are designed to transmit a specific waveband.  They are composed of many thin layers of dielectric materials, which have differing refractive indices to produce constructive and destructive interference in the transmitted light

Fiber optic filters allow only specific wavelengths to pass into a larger fiber optic system

Optical spectrum analyzers (OSA) can divide a lightwave signal into its constituent wavelengths. This means that it is possible to see the spectral profile of the signal over a certain wavelength range

Interferometers measure distance in terms of wavelength and determine the wavelengths of light sources.

Optical coating services design optical coatings and apply them to crystal, fiber, glass, metal, or polymer substrates to produce optical components. 

Hot mirrors and cold mirrors are dichroic filters that have a sharp transition between rejecting and transmitting at the near-infrared-visible area of the spectrum

Microscopes are instruments that produce magnified images of small objects

Mirror mounts are used to hold and support mirrors of all sizes and shapes.

Acousto-optic modulators are devices that use sound waves to modify the amplitude, frequency, or phase of light passing through an acousto-optic material

Frequency converters and translators scale and/or filter frequency inputs to produce outputs signals with frequencies that are a function of the inputs

Fiber bragg gratings have a periodically altered refractive index to filter certain wavelengths while allowing others to pass

Bridge conditioners are instruments that provide excitation and support for strain gages, Wheatstone bridges, load cells, and sensors. They also include circuitry for signal conditioning, amplification, and processing.

Charge converters and charge amplifiers convert the charge output from a piezoelectric, capacitive or other charge-producing sensor to a signal such as analog voltage or current.

Fiber optic linear position sensors use fiber optic technology to sense position and displacement.