OPTICAL MODULATOR USING MULTIPLE FABRY-PEROT RESONANT MODES AND APPARATUS FOR CAPTURING 3D IMAGE INCLUDING THE OPTICAL MODULATOR
First Claim
1. An optical modulator comprising:
- a bottom reflective layer;
an active layer which is disposed on the bottom reflective layer and which comprises a multiple quantum well layer; and
a top reflective layer which is disposed on the active layer, the top reflective layer including a first top reflective layer which is disposed on the active layer, a first cavity layer which is disposed on the first top reflective layer, a second top reflective layer which is disposed on the first cavity layer, a second cavity layer which is disposed on the second top reflective layer, and a third top reflective layer which is disposed on the second cavity layer,wherein, when a center wavelength of an incident light to be modulated is λ
, the active layer and the first and second cavity layers have an optical thickness that is an integer multiple of λ
/2 to provide an individual resonant cavity.
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Abstract
An optical modulator includes: a bottom reflective layer; an active layer which is disposed on the bottom reflective layer and includes a multiple quantum well layer; and a top reflective layer which is disposed on the active layer, the top reflective layer including a first top reflective layer which is disposed on the active layer, a first cavity layer which is disposed on the first top reflective layer, a second top reflective layer which is disposed on the first cavity layer, a second cavity layer which is disposed on the second top reflective layer, and a third top reflective layer which is disposed on the second cavity layer. When a center wavelength of an incident light to be modulated is λ, the active layer and the first and second cavity layers have an optical thickness that is an integer multiple of λ/2 to provide an individual resonant cavity.
8 Citations
21 Claims
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1. An optical modulator comprising:
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a bottom reflective layer; an active layer which is disposed on the bottom reflective layer and which comprises a multiple quantum well layer; and a top reflective layer which is disposed on the active layer, the top reflective layer including a first top reflective layer which is disposed on the active layer, a first cavity layer which is disposed on the first top reflective layer, a second top reflective layer which is disposed on the first cavity layer, a second cavity layer which is disposed on the second top reflective layer, and a third top reflective layer which is disposed on the second cavity layer, wherein, when a center wavelength of an incident light to be modulated is λ
, the active layer and the first and second cavity layers have an optical thickness that is an integer multiple of λ
/2 to provide an individual resonant cavity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification