Laser module
AssigneeYoung Optics Inc.
InventorShang-Yi Wu
Life of this patent
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Abstract
A laser module including at least one light-emitting unit, a filter and a poled nonlinear optical crystal is provided. The light-emitting unit provides an incoherent beam. The filter is disposed on the transmission path of the incoherent beam and reflects at least a part of the incoherent beam. The poled nonlinear optical crystal is disposed on the transmission path of the incoherent beam, and has a plurality of poled portions. The poled portions have a plurality of first poled portions and a plurality of second poled portions which are alternately disposed. The incoherent beam passes through at least a part of the first poled portions and a part of the second poled portions. At least parts of the poled portions have different average widths from each other in the direction parallel to the chief ray of the incoherent beam.
Claims15
A laser module, comprising:
- at least one light-emitting unit for providing an incoherent beam;
- a filter, disposed on the transmission path of the incoherent beam and reflecting at least a part of the incoherent beam, wherein an optical cavity is formed between the light-emitting unit and the filter;
- and
- a poled nonlinear optical crystal, disposed on the transmission path of the incoherent beam, located in the optical cavity, and having a plurality of poled portions, wherein the poled portions include a plurality of first poled portions and a plurality of second poled portions, the first poled portions and the second poled portions are alternately disposed, the incoherent beam passes through at least a part of the first poled portions and at least a part of the second poled portions, at least parts of the poled portions have different average widths from each other in a direction parallel to a chief ray of the incoherent beam, and a direction of an electrical dipole moment of the first poled portions is different from a direction of an electrical dipole moment of the second poled portions.
Dependencies are inferred from the claim text.