Integrated optical device including an optoelectronic element and a sealing substrate with an optical element having optical power thereon
View Patent ↗An optical transceiver includes at least one light source and at least one detector mounted on the same surface of the same substrate. The detector is to receive light from other than a light source on the surface. At least one of the light source and the detector is mounted on the surface. An optics block having optical elements for each light source and detectors is attached via a vertical spacer to the substrate. Electrical interconnections for the light source and the detector are accessible from the same surface of the substrate with the optics block attached thereto. One of the light source and the detector may be monolithically integrated into the substrate.
1. An optical device, comprising:
a first substrate having top and bottom surfaces;
a second substrate having top and bottom surfaces;
an optical element having optical power therein on a first surface of the top and bottom surfaces of the first and second substrates;
a spacer substrate between a substantially planar portion of the top surface of the second substrate and a substantially planar portion of the bottom surface of the first substrate, the spacer substrate, the first substrate and the second substrate sealing an interior space between the top surface of the second substrate and the bottom surface of the first substrate; an optoelectronic element within the interior space; and
an electrical interconnection extending from the optoelectronic element to outside the interior space.
2. The optical device as claimed in claim 1 , wherein the optical element is within the interior space.
3. The optical device as claimed in claim 1 , wherein the optical element is a microlens.
4. The optical device as claimed in claim 1 , wherein the optical element is a refractive element.
5. The optical device as claimed in claim 1 , wherein the optical element is a diffractive element.
6. The optical device as claimed in claim 1 , wherein the electrical interconnection extends along at least one of the first, second and spacer substrates.
7. The optical device as claimed in claim 1 , wherein the top surface of the second substrate extends in at least one direction beyond the bottom surface of the first substrate.
8. The optical device as claimed in claim 1 , wherein the optoelectronic device is mounted on the first substrate.
9. The optical device as claimed in claim 1 , wherein the optoelectronic device is mounted on the second substrate.
10. The optical device as claimed in claim 1 , wherein at least one of the first and second substrates is silicon.
11. The optical device as claimed in claim 1 , wherein at least one of the first and second substrates is transparent.
12. The optical device as claimed in claim 1 , wherein the first, second and spacer substrates are secured having a plurality of optoelectronic elements.
13. The optical device as claimed in claim 12 , wherein each of the plurality of optoelectronic elements is within a corresponding interior space.
14. The optical device as claimed in claim 12 , wherein secured first, second and spacer substrates are vertically separated to form a plurality of optical devices.
15. The optical device as claimed in claim 1 , wherein the spacer substrate and one of the first and second substrates are secured having a plurality of at least portions of interior spaces.
16. The optical device as claimed in claim 15 , wherein secured spacer substrate and one of the first and second substrates have a plurality of interior spaces.
17. The optical device as claimed in claim 15 , wherein secured spacer substrate and one of the first and second substrates have a plurality of optoelectronic elements within corresponding interior spaces.
18. The optical device as claimed in claim 15 , wherein a plurality of another of the first and second substrates are secured to the secured spacer substrate and one of the first and second substrates.
19. The optical device as claimed in claim 18 , wherein secured first, second and spacer substrates are vertically separated to form a plurality of optical devices.
20. The optical device as claimed in claim 18 , wherein the another of the first and second substrates is substantially unaffected by the vertical separation.
21. The optical device as claimed in claim 18 , wherein the plurality of another of the first and second substrates has a plurality of optoelectronic elements thereon.