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US 2024/0162678 A1Published application
Compact, high power mid-wave infrared (mwir) laser system
AssigneeApplied Energetics, Inc.
InventorsAlan Kost, Stephen William McCahon
Life of this patent
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Abstract
Mid-Wave Infrared (MWIR) laser systems emits at multiple wavelengths spanning the mid-IR transmission bands with tunability not to coincide with absorption lines within the bands. Optical fiber-based pump sources and a series of Raman fiber wavelength shifting amplifiers create a single output aperture that contains multiple spectral lines within each MWIR sub-band.
Claims21
A Mid-Wave Infrared (MWIR) laser system, comprising:
- an optical source producing a near-infrared optical seed, the near-infrared optical seed having a near-infrared optical seed wavelength;
- a first Raman resonator optically coupled to the optical source and configured to accept the near-infrared optical seed whereby the first Raman resonator shifts the near-infrared optical seed wavelength of the near-infrared optical seed using vibrational transitions creating a mid-infrared optical seed, the mid-infrared optical seed having a mid-infrared optical seed wavelength greater than the near-infrared optical seed wavelength;
- and
- a second Raman resonator optically coupled to the first Raman resonator optically and configured to accept the mid-infrared optical seed whereby the a second Raman resonator shifts the mid-infrared optical seed wavelength of the mid-infrared optical seed using rotational transitions forming a plurality of mid-infrared optical lines, each of the mid-infrared optical lines having a mid-infrared optical line wavelength greater than the mid-infrared optical seed wavelength.
1 more element
A method for forming Mid-Wave Infrared (MWIR) optical lines, the method comprising:
- producing, by an optical source, a near-infrared optical seed, the near-infrared optical seed having a near-infrared optical seed wavelength;
- shifting, by a first Raman resonator, the near-infrared optical seed wavelength of the near-infrared optical seed using vibrational transitions creating a mid-infrared optical seed, wherein the mid-infrared optical seed has a mid-infrared optical seed wavelength greater than the near-infrared optical seed wavelength;
- and
- shifting, by a second resonator Raman resonator, the mid-infrared optical seed wavelength of the mid-infrared optical seed using rotational transitions forming a plurality of mid-infrared optical lines, wherein each of the mid-infrared optical lines has a mid-infrared optical line wavelength greater than the mid-infrared optical seed wavelength.
1 more element
Dependencies are inferred from the claim text.