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US 8,785,897 B2Granted
Monolithic opto-isolators
AssigneeFinisar Corporation
InventorsHarold Young Walker, James D. Guenter, Gary Landry, Jimmy A. Tatum
Life of this patent
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Abstract
Monolithic opto-isolators and arrays of monolithic opto-isolators are disclosed. The monolithic opto-isolators are manufactured in a single semiconductor wafer where they may be tested at the wafer level before each opto-isolator is singulated from the wafer. The monolithic opto-isolators include a VCSEL monolithically produced adjacent to a photodiode where an axis of optical signal transmission of the VCSEL is substantially parallel to an axis of optical signal reception by the photodiode.
Claims22
An opto-isolator, comprising:
- a vertical cavity surface emitting laser (VCSEL) diode comprising a first PN junction with a first p layer and a first n layer;
- a photodiode disposed adjacent to the VCSEL such that an axis of transmission of the VCSEL is parallel to an axis of reception of the photodiode;
- and
- at least one reflective surface configured to optically couple substantially all of the light produced by the VCSEL with the photodiode.
1 more element
Dependencies are inferred from the claim text.