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US 7,068,890 B2Granted
Optical receiver with high dynamic range
AssigneeJDS Uniphase Corporation
InventorsYakov G. Soskind, Mark Itzler, Scott Merritt
Life of this patent
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Abstract
An optical coupling assembly having an optical receiver that exhibits extended dynamic range, and, more particularly, an optical receiver that is integrated with a Variable Optical Attenuator (VOA) to extend the dynamic range of the receiver.
Claims12
An optical coupling assembly comprising:
- an optical waveguide for transmitting light having an optical axis extending therethrough, said optical waveguide having an output end at en angle to the optical axis of between 10° and 50° for refracting an optical beam at a deflection angle relative to the optical axis;
- and
- a photodetector having an absorption layer for receiving the optical beam at an angle of incidence of between 45° and 90°, thereby increasing an optical path length of the optical beam propagating through the absorption layer.
Dependencies are inferred from the claim text.