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US 12,625,306 B2Granted
Thin film narrow bandwidth transmission filter for optical emitters
AssigneeLumentum Operations LLC
InventorsCailin Wei, Jihua Du, Prasad Yalamanchili
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Abstract
In some implementations, an optical system includes an optical emitter, a locking apparatus, wherein the locking apparatus comprises a narrow bandwidth transmission filter (NBTF) and a partial reflection surface, wherein the locking apparatus is aligned to an optical output of the optical emitter, and wherein the locking apparatus is configured to provide optical feedback to the optical emitter.
Claims20
An optical system, comprising:
- an optical emitter,
- a locking apparatus, wherein the locking apparatus comprises:
- a narrow bandwidth transmission filter (NBTF);
- a partial reflection surface,
- wherein the locking apparatus is aligned to an optical output of the optical emitter, and
- wherein the locking apparatus is configured to provide optical feedback to the optical emitter;
- and
- a fast axis collimator (FAC) and a slow axis collimator (SAC) aligned to an optical path of the optical emitter, the partial reflection surface, and the NBTF,
- wherein the partial reflection surface and the SAC are implemented in a single optical element.
6 more elements
An optical device, comprising:
- a locking apparatus, wherein the locking apparatus comprises:
- a narrow bandwidth transmission filter (NBTF);
- a partial reflection surface,
- wherein the locking apparatus is configured to provide optical feedback;
- and
- a fast axis collimator (FAC) and a slow axis collimator (SAC) aligned to an optical path of an optical emitter, the partial reflection surface, and the NBTF,
- wherein the partial reflection surface and the SAC are implemented in a single optical element.
4 more elements
A device, comprising:
- a locking apparatus, wherein the locking apparatus comprises:
- a narrow bandwidth transmission filter (NBTF);
- a partial reflection surface,
- wherein the locking apparatus is configured to provide feedback to an optical emitter;
- and
- a fast axis collimator (FAC) and a slow axis collimator (SAC) aligned to an optical path of the optical emitter, the partial reflection surface, and the NBTF,
- wherein the partial reflection surface and the SAC are implemented in a single optical element.
4 more elements
Dependencies are inferred from the claim text.