US 6,320,886 B1 · Laser device

Abstract

A laser device comprises a non-collinear optical parametric generator (OPG) and a pump wave source (4). The OFG comprises a non-linear crystal (1) fixedly mounted within the generator wherein the relative orientations of the pump wave (3) and each generated wave (5) to an optic axis (2) of the non-linear crystal (1) are substantially such that a point of inflexion is produced in a tuning curve of wavelength versus pump wave orientation of one of the generated waves, such that a broadband spectral output is obtained. This device has many applications including an amplifier for an input seed wave in which the crystal dose not have to be rotated to match the wavelength of the seed wave; or as part of a continuously tuneable narrowband source.

Claims9

Dependent claims

A laser device, the device comprising:

a non-collinear optical parametric generator (OPG);
a pump wave source for generating at least one wave as an input to said OPG, the OPG comprising a non-linear crystal fixedly mounted within the generator;
and
reflecting means, coupled to said OPG, for forming a resonator in which said at least one wave is resonant;
wherein the pump wave and each generated wave and an optic axis of the non-linear crystal are adapted to produce a point of in flexion in a graph of a tuning curve of wavelength versus pump wave orientation of said at least one generated wave, such that a polychromatic broadband spectral output is obtained.

2 more elements

Dependencies are inferred from the claim text.

Laser device

Life of this patent

Laser device

Life of this patent

Abstract

Claims9