OPTICAL COMPONENT AND WAVELENGTH DISPERSION COMPENSATOR

摘要

PROBLEM TO BE SOLVED: To make an optical distance between reflecting layers which are substantially uniform, regarding an optical component configured to perform multiple beam reflections between a total reflecting layer formed on one of parallel planes and a partially reflecting layer formed on the other, and then to gradually emit the light from the partially reflecting layer where the layer thickness of the partial reflection layer becomes thinner in a multi-stepwise manner.

SOLUTION: The partially reflecting layer 13 of a VIPA 10 as an optical component includes a first reflecting layer 13a and a second reflecting layer 13b whose layer thickness is smaller than that of the first reflecting layer 13a. A correction layer 15 for adjusting the optical distance D2 required, until the light which has been reflected by the second reflecting layer 13b is reflected by the fully reflecting layer 12 is formed under the partially reflecting layer 13.

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