+Coherent light consists of waves that maintain a constant [Phase](/wiki/Phase) and [Wavelength](/wiki/Wavelength) across time and space. This organized, 'in-step' nature makes it distinct from incoherent light and essential for technologies such as the [Laser](/wiki/Laser).
+## See also
+- [Photonics](/wiki/Photonics)
+- [Interference](/wiki/Interference)
+- [Wave](/wiki/Wave)
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