Abstract
Birefringent filters play an important role in many optical systems whenever filters of extremely narrow bandwidth with wide angular fields or with tuning capability are required. In the area of laser communication, when the signal is transmitted through a random medium, such as an atmosphere or seawater, the received signal is carried in part by a scattered component of the laser radiation which will appear to come from a wide FOV, often up to several steradians.
© 1981 Optical Society of America
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