| 摘要 |
A sub-mount for fixing a photodiode is provided with an opening for transmitting an light, which is incident from below a light receiving portion of the photodiode. A wavelength selective filter having a wavelength selective function via a dielectric multilayer film is fixed to the opening for transmitting the incident light. Further, a light shading structure for shading scattering light incident from the side of the photodiode is provided and the whole light-receiving-portion-side surface is covered by potting with an opaque resin for absorbing scattering light incident from the light-receiving-portion-side surface of the photodiode, whereby an optical receiver excellent in wavelength selectivity is formed.
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