Optical couplers are used to take the light coming from the source of a FTIR and route it through the sampling accessory and into the FTIR detector. This is an essential process in the effective use of the FTIR spectrometer. Therefore, optical couplers play an essential role in the proper use and maintenance of a FTIR system. Recognizing the importance of optical couplers to the overall effectiveness of the FTIR System, CIC Photonics has developed their own design for optical couplers.

The purpose of optical couplers is to direct light efficiently to the desired locations. Two essential issues must be addressed when implementing optical couplers: the couplers must efficiently transfer light to the location of interest, and they must be able to maintain this efficient transfer throughout the life span of the instrument. CIC Photonics optical coupler design has numerous features which address these key issues as well as a number of secondary issues of lesser importance.
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