Patent ID: 9203209
Filing Date: 2015-12-01
Classification: G02B,G02F,H01S

Abstract:
1. A fiber laser, comprising: a higher-order-mode (HOM) fiber, the HOM fiber supporting a plurality of guided modes of propagation including higher-order modes, the HOM fiber having a predetermined mode-dependent dispersion characteristic defining a zero-dispersion wavelength for a first higher-order mode, the zero-dispersion wavelength defining a set of respective higher-order modes, wavelengths and phases of constituent optical signals of a predetermined pattern of nonlinear wave mixing in which at least one of the constituent optical signals propagates in the first higher-order mode, an optical signal source having an output coupled to an input point of the HOM fiber and operative to launch a first optical signal into the HOM fiber, the first optical signal being a first one of the constituent optical signals and producing the predetermined pattern of nonlinear wave mixing in the HOM fiber; and an output optical element coupled to an output point of the HOM fiber, the output optical element operative to extract a second optical signal from the HOM fiber, the second optical signal being a second one of the constituent optical signals and produced by the pattern of nonlinear wave mixing, the second optical signal propagating in a second higher-order mode of the set of modes defined by the zero-dispersion wavelength.