# US 11,307,087 B2 · Optoelectronic modules with temperature-independent characteristics

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- Number: US 11,307,087 B2
- Document ID: US11307087B2
- Status: Granted
- Kind: B2
- Application number: 16/629,461
- Filed: 2018-07-11
- Published: 2021-11-25
- Granted: 2022-04-19
- Earliest claimed: 2017-07-11
- Assignees: ams Sensors Singapore Pte. Ltd.
- Applicants: ams Sensors Singapore Pte. Ltd.
- Inventors: Jens Geiger
- Web page: https://patentgrep.com/patent/US11307087B2

## CPC

- G01J 1/44: Electric circuits {(for command of an exposure part G03B7/02)}
- G01S 17/04: Systems determining the presence of a target
- H01S 5/068: Stabilisation of laser output parameters (H01S5/0625 takes precedence)
- H04R 3/00: Circuits for transducers (arrangements for producing a reverberation or echo sound G10K15/08; amplifiers H03F)
- H10F 55/00: Radiation-sensitive semiconductor devices covered by groups H10F10/00, H10F19/00 or H10F30/00 being structurally associated with electric light sources and electrically or optically coupled thereto
- H10F 77/60: Arrangements for cooling, heating, ventilating or compensating for temperature fluctuations
- G01J 2001/444: {Compensating; Calibrating, e.g. dark current, temperature drift, noise reduction or baseline correction; Adjusting}
- G01K 7/02: using thermoelectric elements, e.g. thermocouples
- G01K 7/22: the element being a non-linear resistance, e.g. thermistor (G01K7/26 takes precedence)
- H01S 5/183: having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- G01J: MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY (light sources F21, H01J, H01K, H05B; investigating properties of materials by optical means G01N)
- G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- 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
- H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K)
- H10F: INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- G01K: MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (radiation pyrometry G01J5/00)

## Abstract

The present disclosure is directed to optoelectronic modules with substantially temperature-independent performance characteristics and host devices into which such optoelectronic modules can be integrated. In some instances, an optoelectronic module can collect proximity data using light-generating components and light-sensitive components that exhibit temperature-dependent performance characteristics. The light-generating components and light-sensitive components can be configured such that they exhibit complementing temperature-dependent performance characteristics such that the operating performance of the optoelectronic module is substantially temperature independent.

## Claims

### Claim 1

An optoelectronic module operable to collect signals and being characterized by substantially temperature-independent performance characteristics, the module comprising:
a light-generating component operable to emit light, wherein the light-generating component exhibits temperature-dependent performance characteristics; and
a light-sensitive component operable to collect at least a portion of the light emitted by the light-generating component, wherein the light-sensitive component exhibits temperature-dependent performance characteristics;
wherein the temperature-dependent performance characteristics of the light-generating component and the temperature-dependent performance characteristics of the light-sensitive component complement each other such that the optoelectronic module exhibits substantially temperature-independent performance characteristics.

### Claim 2 (depends on 1)

The optoelectronic module of claim 1, wherein the light-sensitive component includes an optical component configured to complement the temperature-dependent performance characteristics of the light-generating component.

### Claim 3 (depends on 2)

The optoelectronic module of claim 2, wherein the optical component includes a dielectric material characterized by a thickness, wherein the thickness of the dielectric material is configured to complement the temperature-dependent performance characteristics of the light-generating component such that the optoelectronic module exhibits substantially temperature-independent performance characteristics.

### Claim 4 (depends on 1)

The optoelectronic module of claim 1, wherein the light-generating component includes a vertical-cavity surface-emitting laser.

### Claim 5 (depends on 4)

The optoelectronic module of claim 4, wherein the vertical-cavity surface-emitting laser is characterized by the temperature-dependent performance characteristics of the light-generating component, wherein the vertical-cavity surface emitting laser is configured to exhibit the temperature-dependent performance characteristics that complement the temperature-dependent performance characteristics of the light-sensitive component such that the optoelectronic module exhibits substantially temperature-independent performance characteristics.

### Claim 6 (depends on 5)

The optoelectronic module of claim 5, wherein the vertical-cavity surface-emitting laser is configured to exhibit a cavity mode shift and peak gain shift that complements the temperature-dependent performance characteristics of the light-sensitive component.

### Claim 7 (depends on 1)

The optoelectronic module of claim 1, wherein the light-generating component is characterized by an optical power that varies with the temperature-dependent performance characteristics of the light-sensitive component such that the optoelectronic module exhibit substantially temperature-independent performance characteristics.

### Claim 8 (depends on 7)

The optoelectronic module of claim 7, further comprising a thermistor or a thermocouple.

### Claim 9 (depends on 8)

The optoelectronic module of claim 8, wherein the thermistor or thermocouple is mounted adjacent to the light-sensitive component.

### Claim 10 (depends on 1)

The optoelectronic module of claim 1, further comprising a processor communicatively coupled to the light-sensitive component.

### Claim 11 (depends on 1)

The optoelectronic module of claim 1, wherein the light-sensitive component is any of: a photodiode, an array of charge-coupled devices, and/or an array of complementary metal-oxide semiconductor devices.

### Claim 12 (depends on 1)

The optoelectronic module of claim 1, wherein the light-generating component is any of: a vertical-cavity surface-emitting laser, another type of laser diode, and/or a light-emitting diode.

### Claim 13 (depends on 1)

A host device including one or more optoelectronic modules as in claim 1 to collect signals and being characterized by substantially temperature-independent performance characteristics, the host device comprising a supplemental module configured to respond to signals collected by the one or more optoelectronic modules.

### Claim 14 (depends on 13)

The host device of claim 13, wherein the one or more optoelectronic modules includes a proximity sensor, the supplemental module includes a display screen, the signals collected by the proximity sensor includes signals corresponding to proximity data, and the response of the display screen includes altering the state of the display screen.

### Claim 15 (depends on 13)

The host device of claim 13, wherein the one or more optoelectronic modules includes a proximity sensor, the supplemental module includes an audio device, the signals collected by the proximity sensor includes signals corresponding to proximity data, and the response of the audio device includes altering the volume and/or sensitive of the audio device.

### Claim 16 (depends on 15)

The host device of claim 15, wherein the audio device incudes a speaker and/or a microphone.
