A Variable Optical Attenuator (VOA) is a device used in optoelectronics to control the power of an optical signal. It is used to reduce the intensity of a light beam, allowing for precise control of the optical power. VOAs are used in a variety of applications, such as optical communication systems, fiber-optic sensing, and laser systems. VOAs are typically constructed from a combination of optical components, such as lenses, filters, and waveplates. The components are arranged in a way that allows for the attenuation of the optical signal. The attenuation is usually achieved by changing the angle of the optical components, which alters the amount of light that is transmitted. The VOA market is an important part of the optoelectronics industry. VOAs are used in a variety of applications, and the demand for these devices is expected to remain strong. Some companies in the VOA market include Thorlabs, Newport Corporation, and OZ Optics. Show Less Read more
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