# US 2014/0197338 A1 · Opto-isolator including a vertical cavity surface emitting laser

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- Number: US 2014/0197338 A1
- Document ID: US20140197338A1
- Status: Published application
- Kind: A1
- Application number: 14/216,700
- Filed: 2014-03-17
- Published: 2014-07-17
- Earliest claimed: 2007-02-07
- Assignees: Finisar Corporation
- Applicants: Finisar Corporation
- Inventors: James K. Guenter; Jimmy A. Tatum; Norman Brent Stapleton; Richard L. Bell; Harold Young Walker; Jose Joaquin Aizpuru
- Web page: https://patentgrep.com/patent/US20140197338A1

## CPC

- H04B 10/802: {for isolation, e.g. using optocouplers}
- H01S 5/0232: Lead-frames
- H01S 5/183: having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S 5/02253: using lenses
- H01S 5/02255: using beam deflecting elements
- H10W 74/00: Encapsulations, e.g. protective coatings
- H10W 74/10: characterised by their shape or disposition
- H04B: TRANSMISSION
- H01S: DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

An opto-isolator is disclosed that include a vertical cavity surface emitting laser (VCSEL), a photodetector and a package enclosing the VCSEL and the photodetector. The photodetector is optically coupled to the VCSEL and configured to receive an output optical signal generated by the VCSEL.

## Claims

### Claim 1

An opto-isolator comprising:
a vertical cavity surface emitting laser (VCSEL);
a photodetector optically coupled to the VCSEL and configured to receive an output optical signal generated by the VCSEL; and
a package enclosing the VCSEL and the photodetector.

### Claim 2 (depends on 1)

An opto-isolator according to claim 1, wherein the VCSEL is disposed adjacent to the detector and optically coupled to the detector via a redirection of the optical signal.

### Claim 3 (depends on 1)

An opto-isolator according to claim 1, further comprising a reflective surface configured to optically couple the VCSEL with the detector.

### Claim 4 (depends on 3)

An opto-isolator according to claim 3, wherein the reflective surface receives and redirects the output optical signal through a material.

### Claim 5 (depends on 3)

An opto-isolator according to claim 3, wherein the reflective surface is a reflective surface that receives and redirects the output optical signal through air.

### Claim 6 (depends on 3)

An opto-isolator according to claim 3, wherein the reflective surface is unitarily formed with an encapsulant.

### Claim 7 (depends on 1)

An opto-isolator according to claim 1, further comprising two reflective surfaces configured to redirect the output optical signal generated by the VCSEL such that the output optical signal is received by the detector.