Emitter array with variable spacing between adjacent emitters
AssigneeLumentum Operations LLC
InventorsAlbert YUEN, Ajit Vijay BARVE
Life of this patent
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Abstract
In some implementations, a VCSEL array may include a plurality of VCSELs that each operates concurrently and emits light at a same wavelength. A first distance between a first pair of adjacent VCSELs, of the plurality of VCSELs, may be different from a second distance between a second pair of adjacent VCSELs of the plurality of VCSELs. The first pair of adjacent VCSELs may be located closer to a center of the VCSEL array than the second pair of adjacent VCSELs. At least one of temperature non-uniformity or optical power non-uniformity among the plurality of VCSELs may be reduced as compared to another VCSEL array, with a same physical footprint as the VCSEL array, comprising uniformly spaced VCSELs.
Claims20
A vertical cavity surface emitting laser (VCSEL) array, comprising:
- a plurality of VCSELs that each operates concurrently and emits light at a substantially same wavelength,
- where a first distance between a first pair of adjacent VCSELs, of the plurality of VCSELs, is different from a second distance between a second pair of adjacent VCSELs of the plurality of VCSELs,
- the first pair of adjacent VCSELs being located closer to a center of the VCSEL array than the second pair of adjacent VCSELs, and
- where at least one of temperature non-uniformity or optical power non-uniformity among the plurality of VCSELs is reduced as compared to another VCSEL array, with a same physical footprint as the VCSEL array, comprising uniformly spaced VCSELs.
An emitter array, comprising:
- a plurality of emitters that operate concurrently and emit laser beams at a substantially same wavelength,
- where a distance between adjacent emitters, of the plurality of emitters, is based on a distance between a center of the emitter array and the adjacent emitters, and
- where at least one of temperature uniformity or optical power uniformity among the plurality of emitters is increased as compared to another emitter array, with a same physical footprint as the emitter array, comprising uniformly spaced emitters.
A laser array, comprising:
- a plurality of vertical emitting devices with variable spacing between different pairs of adjacent vertical emitting devices,
- where the plurality of vertical emitting devices operate concurrently to produce light at a substantially same wavelength,
- where a spacing for a pair of adjacent vertical emitting devices, of the plurality of vertical emitting devices, is a function of a distance between a center of the laser array and the pair of adjacent vertical emitting devices.
Dependencies are inferred from the claim text.