Optical laser device
High power, high speed VCSEL arrays are employed in unique configurations of arrays and sub-arrays. Placement of a VCSEL array behind a lens allows spatial separation and directivity. Diffusion may be employed to increase alignment tolerance. Intensity modulation may be performed by operating groups of VCSEL emitters at maximum bias. Optical communications networks with high bandwidth may employ angular, spatial, and/or wavelength multiplexing. A variety of network topologies and bandwidths suitable for the data center may be implemented. Eye safe networks may employ VCSEL emitters may be paired with optical elements to reduce optical power density to eye safe levels.
1. An optical laser, comprising:
at least one transceiver system, comprising:
one or more clusters of laser emitters,
wherein a cluster of laser emitters, of the one or more clusters of laser emitters, comprises a plurality of sub-clusters of laser emitters,
wherein each sub-cluster, of the plurality of sub-clusters, is configured to emit one or more laser beams, and
wherein the plurality of sub-clusters comprise a plurality of binary weighted sub-clusters;
a plurality of drivers,
wherein each sub-cluster, of the plurality of sub-clusters, is controlled by a corresponding driver of the plurality of drivers, and
wherein the corresponding driver is independent of other sub-clusters of the plurality of sub-clusters;
an optical diffusing element configured to receive the one or more laser beams and output a diffuse cone for each of the one or more laser beams;
one or more collimating lenses configured to combine the diffuse cone into a bundle of laser beams; and
one or more clusters of laser detectors configured to receive the bundle of laser beams,
wherein each cluster of laser detectors, of the one or more clusters of laser detectors, is configured to be optically coupled with a corresponding cluster of laser emitters, of the one or more clusters of laser emitters, by the one or more collimating lenses.
2. The optical laser of claim 1 , wherein the bundle of laser beams is configured to over-fill or under-fill one or more collection lenses based on an amount of translational tolerance.
3. The optical laser of claim 2 , further comprising:
a photovoltaic device configured to surround each laser detector, of the one or more clusters of laser detectors, to collect excess laser energy when the bundle of laser beams is configured to over-fill the one or more collection lenses.
4. The optical laser of claim 1 , wherein the bundle of laser beams is a combination of the one or more laser beams, and wherein the one or more laser beams in the combination are not coherent.
5. The optical laser of claim 1 , wherein the at least one transceiver system further comprises:
one or more collection lenses configured to receive and focus the bundle of laser beams into a focused bundle of laser beams at a focal point behind a surface of the one or more clusters of laser detectors so that the focused bundle of laser beams forms a blur circle at the surface of the one or more clusters of laser detectors.
6. The optical laser of claim 5 , wherein the focal point is based on a translational tolerance and an optical power of the focused bundle of laser beams.
7. The optical laser of claim 1 , wherein each cluster of laser emitters, of the one or more clusters of laser emitters, include two or more vertical-cavity surface emitting laser (VCSEL) elements configured to be electrically connected in parallel and driven by a corresponding driver of the plurality of drivers.
8. The optical laser of claim 1 , wherein:
the one or more clusters of laser emitters are centrally located on a surface and are driven by an independent controlling circuit; and
the one or more clusters of laser detectors are co-located distally to the one or more clusters of laser emitters.
9. The optical laser of claim 8 , wherein the one or more clusters of laser emitters are arranged in a linear array.
10. The optical laser of claim 8 , wherein the one or more clusters of laser emitters are arranged in a two-dimensional array and the one or more clusters of laser detectors form a perimeter around a plurality of laser emitters.
11. The optical laser of claim 5 , wherein the one or more collection lenses are configured to blur the focused bundle of laser beams based on an alignment tolerance.
12. The optical laser of claim 1 , further comprising:
a second transceiver system, wherein the at least one transceiver system is symmetric with the second transceiver system.
13. The optical laser of claim 1 , wherein a laser output of each sub-cluster, of the plurality of sub-clusters, increases in a binary fashion.
14. The optical laser of claim 1 , wherein a laser output of a particular sub-cluster, of the plurality of sub-clusters, is increased in a binary fashion by increasing an output of a laser emitter of the particular sub-cluster.
15. The optical laser of claim 1 , wherein a laser output of a particular sub-cluster, of the plurality of sub-clusters, is increased in a binary fashion by adjusting a quantity of laser emitters in the particular sub-cluster.
16. The optical laser of claim 1 , wherein a first sub-cluster, of the plurality of sub-clusters, comprises two vertical-cavity surface emitting laser (VCSEL) emitters;
wherein a second sub-cluster, of the plurality of sub-clusters, comprises four VCSEL emitters; and
wherein a third sub-cluster, of the plurality of sub-clusters, comprises eight VCSEL emitters.
17. The optical laser of claim 16 , wherein each VCSEL emitter, of the plurality of sub-clusters, has a same power output.
18. The optical laser of claim 16 , wherein a particular lens, of the one or more collimating lenses, is configured to semi-collimate an output of at least one of the first sub-cluster, the second sub-cluster, or the third sub-cluster.
19. The optical laser of claim 1 , wherein the at least one transceiver system further comprises:
a holographic optical element configured to distribute hotspots to an intensity uniform mixed beam.
20. The optical laser of claim 1 , wherein a first sub-cluster, of the plurality of sub-clusters, comprises a different quantity of vertical-cavity surface emitting laser (VCSEL) emitters than a second sub-cluster of the plurality of sub-clusters.