Question

optical modulator working?

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Answer 1

Explanation:

An optical modulator is a device which is used to modulate a beam of light. The beam may be carried over free space, or propagated through an optical waveguide (optical fibre). ... For this reason light modulators are, e.g. in fiber optic communications, called external light modulators.

Answer 2

An optical modulator is a device which can be used for manipulating a property of light – often of an optical beam, e.g. a laser beam. Depending on which property of light is controlled, modulators are called intensity modulators, phase modulators, polarization modulators, spatial light modulators, etc.

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