System and method for controlling nonlinearities in laser units
OwnerNikolai Platonov, Alex Yusim +2inventors
InventorsNikolai Platonov, Alex Yusim, Oleg Shkurikhin, Anton Drozhzhin
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Abstract
An optical system includes a launching component radiating a beam of light at a fixed power, a specialty component, which receives the beam and is configured with a transverse mode field diameter different from that one of the launching component, and a focusing component substantially losslessly coupled to the launching and receiving components. The focusing component is configured so that the effective area of mode at the input of the receiving component determines the intensity of light inducing at least one nonlinear effect at the desired threshold.
Claims30
An optical system, comprising:
- a focusing component transmitting a beam of light propagating at a fixed power;
- and
- a receiving component substantially losslessly coupled to an output of the focusing component, wherein the focusing component is configured so that an effective area of a mode in the receiving component induces at least one nonlinear effect therein at a predetermined threshold at the fixed power.
A method of controllably originating at least one nonlinear effect in a receiving optical component comprising the steps of:
- configuring a focusing component transmitting a beam of light at a fixed power and coupled to the receiving component so that an effective area of a mode in the receiving component induces the at least one nonlinear effect at a desired threshold.
An optical system, comprising:
- a laser device radiating a beam of light propagating along a laser output fiber at a fixed power;
- a highly nonlinear (HNL) component receiving the beam;
- and
- at least one focusing component having input and output ends coupled to the laser output fiber and HNL receiving component, respectively, wherein the focusing component is so configured that an effective area of a mode at an input of the receiving component induces at least one nonlinear effect in the HNL receiving component at a desired threshold.
An optical system, comprising:
- a laser device radiating a beam of light propagating along a laser output fiber;
- at least one large-mode area (LMA) fiber receiving the beam;
- and
- at least one focusing component having input and output ends coupled to the laser output and LMA receiving fibers, respectively, wherein the focusing component is configured so that an effective area of a mode in the receiving component induces at least one nonlinear effect in the LMA receiving fiber at a desired threshold.
The optical system of 24 further comprising
- a booster optically coupled to an input of the at least one LMA fiber;
- a series of additional LMA fibers optically coupled to an output of the at least one LMA fiber, each subsequent LMA fiber having a mode field diameter (MFD) larger than that one of a previous LMA fiber, wherein the booster and the LMA fibers are arranged to define a single frequency laser device, and
- a plurality of additional focusing components each located between adjacent LMA fibers and configured so that the effective area of the mode at an input of an utmost downstream LMA receiving fiber induces the at least one non-linear effect at the desired threshold.
Dependencies are inferred from the claim text.