Light source for an optical sensor

Patent metadata

Field	Value
Publication number	US-12282137-B2
Application number	US-202017133263-A
Country	US
Kind code	B2
Filing date	Dec 23, 2020
Priority date	Dec 23, 2020
Publication date	Apr 22, 2025
Grant date	Apr 22, 2025

Abstract

An optical sensor system comprising: (a) a light source for at least one optical sensor, the light source comprising at least, (i) an interposer having first and second opposing sides and defining at least one alignment aperture extending from the first opposing side to the second opposing side; (ii) at least one fiber disposed in the at least one alignment aperture, the at least one fiber having a first optical axis; (iii) at least one light emitting component mounted to the second opposing side and having a second optical axis coincident with the first optical axis, the light emitting component configured to emit light, at least a portion of which is coupled with the at least one fiber as coupled light; and (b) the at least one optical sensor optically coupled to the at least one fiber.

First claim

What is claimed is:

1. An optical sensor system for measuring a property of a target matter, said system comprising:
a light source comprising at least,
an interposer having first and second opposing sides and defining at least one alignment aperture extending from said first opposing side to said second opposing side;
at least one fiber disposed in said at least one alignment aperture, said at least one fiber having a first optical axis;
at least one light generating component mounted to said second opposing side and having a second optical axis coincident with said first optical axis, said light generating component configured to emit light, at least a portion of which is coupled with said at least one fiber as coupled light,
a feedback component configured to provide feedback to said at least one light generating component such that said at least one light generating component maintains constant optical power; and

at least one optical sensor optically coupled to said at least one fiber and configured to direct at least a portion of said coupled light at a target matter and transmit a sensor signal back on said at least one fiber, and
at least one optical sensor receiving component configured to receive at least a portion of said sensor signal to measure a property of said target matter.

2. The optical sensor system of claim 1 , wherein said at least one optical sensor comprises a transmitting sensor component.

3. The optical sensor system of claim 2 , further comprising:
a splitter optically coupled to said transmitting sensor component and having at least a first leg coupled to said receiving sensor component, and a second leg coupled to said at least one fiber.

4. The optical sensor system of claim 3 , wherein said splitter is a 50-50 splitter.

5. The optical sensor system of claim 1 , wherein said at least one optical sensor comprises a plurality of optical sensors.

6. The optical sensor system of claim 5 , further comprising:
at least one splitter optically coupled to said at least one fiber, and having a plurality of legs, wherein each of said a plurality of optical sensors is optically coupled to one of said plurality of legs.

7. The optical sensor system of claim 1 , wherein said feedback component is integrated with the light generating component.

8. The optical sensor system of claim 1 , wherein said feedback device comprises at least a pass/reflect filter.

9. The optical sensor system of claim 7 , wherein said at least one optical sensor comprises a plurality of optical sensors, and wherein said at least one splitter comprises a plurality of legs, and wherein each of said a plurality of optical sensors is optically coupled to one of said plurality of legs.

10. The optical sensor system of claim 1 , wherein said light generating component comprises at least one light emitting diode (LED).

11. The optical sensor system of claim 1 , wherein said light generating component emits light at different wavelengths.

12. The optical sensor system of claim 11 , wherein said light generating component comprises at least one light emitting diode (LED), wherein said at least one LED comprises at least one diode configured for emitting pump light having a first wavelength, and one or more wavelength-converting materials for converting a portion of said pump light to converted light having one or more second wavelengths, each of said second wavelengths being different from said first wavelength, such that said emitted light comprises a combination of said pump light and said converted light.

13. The optical sensor system of claim 12 , wherein said at least one LED comprises a plurality of LEDs each having a different wavelength.

14. The optical sensor system of claim 11 , further comprising a wavelength filter to split said coupled light into two or more light supplies for different sensors, each of said light supplies having a different wavelength.

15. The optical sensor system of claim 1 , wherein said feedback component is disposed on said interposer to receive at least a portion of uncoupled light emitted from an interface between said optical component and said fiber, said feedback component configured to monitor output of said optical component.

16. A light source for at least one optical sensor in combination with a optical sensor transmitting component and an optical sensor receiving component to measure a property of a target matter, said light source comprising at least,
an interposer having first and second opposing sides and defining at least one alignment aperture extending from said first opposing side to said second opposing side;
at least one fiber disposed in said at least one alignment aperture, said at least one fiber having a first optical axis, said least one fiber being configured to optically couple to said optical sensor transmitting component to supply said optical sensor transmitting component with at least a portion of coupled light and receive from said optical sensor transmitting component a sensor signal;
at least one light generating component mounted to said second opposing side and having a second optical axis coincident with said first optical axis, said light generating component configured to emit light, at least a portion of which is coupled with said at least one fiber as said coupled light; and
a feedback component configured to provide feedback to said at least one light generating component such that said at least one light generating component maintains constant optical power.

17. The light source of claim 16 , wherein said light generating component comprises at least one light emitting diode (LED).

18. The light source of claim 16 , wherein said at least one optical sensor comprises a plurality of optical sensors, and wherein said at least one splitter comprises a plurality of legs, and wherein each of said a plurality of optical sensors is optically coupled to one of said plurality of legs.

19. The light source of claim 16 , wherein said at least one optical sensor comprises a plurality of optical sensors, and further comprising at least one second splitter comprising a plurality of legs, and wherein each of said a plurality of optical sensors is optically coupled to one of said plurality of legs.

20. The light source of claim 16 , wherein said feedback component is disposed on said interposer to receive at least a portion of uncoupled light emitted from an interface between said optical component and said fiber, said feedback component configured to monitor output of said optical component.

Assignees

• TE Connectivity Services Gmbh
• Te Connectivity Solutions Gmbh

Inventors

• Benton Mark
• Grinderslev Soren
• Weeks William Atley
• Kuvshinikov Todd Jason

Classifications

• G02B27/144

  using partially transparent surfaces without spectral selectivity (G02B27/147 takes precedence) · CPC title

• G02B6/00

  Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings · CPC title

• G01F23/292

  Light {, e.g. infrared or ultraviolet} · CPC title

• G02B6/3644

  the coupling means being through-holes or wall apertures · CPC title

• G02B6/4286

  Optical modules with optical power monitoring · CPC title