# US 12,007,205 B2 · Compact laser system for directed energy applications > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,007,205 B2 - Document ID: US12007205B2 - Status: Granted - Kind: B2 - Application number: 18/219,475 - Filed: 2023-07-07 - Published: 2024-03-28 - Granted: 2024-06-11 - Earliest claimed: 2021-03-18 - Assignees: Optical Engines, Inc. - Applicants: Optical Engines Inc. - Inventors: Donald Lee Sipes, Jr. - Web page: https://patentgrep.com/patent/US12007205B2 ## CPC - F41H 11/02: Anti-aircraft or anti-guided missile {or anti-torpedo} defence installations or systems (cartridges or missiles for producing smoke or for dispensing radar chaff or infrared material F42B5/15, F42B12/48, F42B12/70; {informative reference: details of radar or sonar systems G01S7/00; jamming or electronic countermeasures G01S7/38, G01S7/495, H04K3/00}) - F41H 13/005: {the high-energy beam being a laser beam} - F41H 13/0062: {causing structural damage to the target} - F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL ## Abstract A system for disabling or destroying an unmanned aerial vehicle (UAV) is provided. The system comprises an anti-UAV system and an anti-UAV computing platform. The anti-UAV system comprises: a plurality of laser devices configured to generate a plurality of laser beams at a plurality of different wavelengths; a coarse wavelength division multiplexing (CWDM) combiner configured to combine the plurality of laser beams from the plurality of laser devices into a combined laser beam; and a tracking device configured to detect a UAV. The anti-UAV computing platform is configured to: detect, using the tracking device, an object within range of the tracking device; and based on detecting the object, direct, using the anti-UAV system, the combined laser beam from the CWDM combiner onto the detected object. ## Claims ### Claim 1 A system for disabling or destroying an unmanned aerial vehicle (UAV), comprising: an anti-UAV system comprising: a plurality of laser devices configured to generate a plurality of laser beams at a plurality of different wavelengths; and a coarse wavelength division multiplexing (CWDM) combiner configured to combine the plurality of laser beams from the plurality of laser devices into a combined laser beam; and an anti-UAV computing platform configured to: based on detecting the UAV, direct, using the anti-UAV system, the combined laser beam from the CWDM combiner onto the detected UAV. ### Claim 2 (depends on 1) The system of claim 1, wherein the anti-UAV computing platform is further configured to: output, using the anti-UAV system, the combined laser beam at a first scan angle; and detect the UAV based on outputting the combined laser beam at the first scan angle, and wherein directing the combined laser beam onto the detected UAV comprises converging the combined laser beam onto the detected UAV by reducing the first scan angle. ### Claim 3 (depends on 2) The system of claim 2, wherein the plurality of different wavelengths of the plurality of laser devices are within a wavelength window, and wherein detecting the UAV is based on using a filter associated with the wavelength window to filter out pixels outside of the wavelength window. ### Claim 4 (depends on 2) The system of claim 2, wherein the CWDM combiner comprises a beam expander configured to converge or diverge the combined laser beam, and wherein the anti-UAV computing platform is configured to output the combined laser beam at the first scan angle by directing the beam expander to diverge the combined laser beam to the first scan angle. ### Claim 5 (depends on 4) The system of claim 4, wherein the anti-UAV computing platform is configured to converge the combined laser beam onto the detected UAV by: causing the beam expander to direct additional laser power onto the detected UAV based on reducing a scan angle of the combined laser beam from the first scan angle. ### Claim 6 (depends on 1) The system of claim 1, wherein the CWDM combiner comprises a plurality of thin film filters, wherein the plurality of thin film filters comprises: a first thin film filter configured to combine a first laser beam from a first laser device, of the plurality of laser devices, with a second laser beam from a second laser device, of the plurality of laser devices, to generate a first combined laser beam; and a second thin film filter configured to combine the first combined laser beam with a third laser beam from a third laser device, of the plurality of laser devices, to generate a second combined laser beam, wherein the combined laser beam is based on the second combined laser beam. ### Claim 7 (depends on 6) The system of claim 6, wherein the plurality of thin film filters comprises: a third thin film filter configured to combine the second combined laser beam with a fourth laser beam from a fourth laser device, of the plurality of laser devices, to generate a third combined laser beam; and a fourth thin film filter configured to combine the third combined laser beam with a fifth laser beam from a fifth laser device, of the plurality of laser devices, to generate a fourth combined laser beam, wherein the combined laser beam is the fourth combined laser beam. ### Claim 8 (depends on 1) The system of claim 1, wherein each of the plurality of laser devices comprises a Ytterbium (Yb) laser medium. ### Claim 9 (depends on 1) The system of claim 1, wherein each of the plurality of laser devices comprises an Erbium (Er) laser medium or a Thulium (Tm) laser medium. ### Claim 10 (depends on 1) The system of claim 1, wherein the anti-UAV system further comprises: a movable beam director platform configured for elevation adjustment and azimuth adjustment, wherein the anti-UAV computing platform is configured to converge the combined laser beam onto the detected UAV by: adjusting an elevation or an azimuth angle of the movable beam director platform. ### Claim 11 (depends on 10) The system of claim 10, wherein the anti-UAV computing platform is configured to detect the UAV based on receiving an image from an capturing device indicating the UAV, and wherein the adjusting the elevation or the azimuth angle of the movable beam director platform is based on the image from the capturing device. ### Claim 12 (depends on 10) The system of claim 10, wherein the movable beam director platform comprises: a two-axis scan head configured to direct the combined laser beam. ### Claim 13 (depends on 1) The system of claim 1, wherein a laser device of the plurality of laser devices comprises a ring laser oscillator. ### Claim 14 (depends on 13) The system of claim 13, wherein the ring laser oscillator comprises a wavelength division multiplexed (WDM) combiner, an adjustable tap coupler, a first gain fiber, and a circulator. ### Claim 15 (depends on 14) The system of claim 14, wherein the laser device further comprises a second gain fiber configured to output a fiber signal and coupled to an output of the ring laser oscillator, a plurality of laser diodes configured to provide pump light, and a signal combiner configured to generate an output based on the pump light and the fiber signal from the second gain fiber. ### Claim 16 A method for disabling or destroying an unmanned aerial vehicle (UAV), comprising: generating, by a plurality of laser devices of an anti-UAV system, a plurality of laser beams at a plurality of different wavelengths; combining, by the anti-UAV system and using a coarse wavelength division multiplexing (CWDM) combiner, the plurality of laser beams from the plurality of laser devices into a combined laser beam; and based on detecting the UAV, directing, by the anti-UAV system, the combined laser beam from the CWDM combiner onto the detected UAV. ### Claim 17 (depends on 16) The method of claim 16, wherein generating the plurality of laser beams comprises generating, by the plurality of laser devices, the plurality of laser beams at the plurality of different wavelengths, wherein each of the plurality of laser devices comprises a Ytterbium (Yb) laser medium. ### Claim 18 (depends on 16) The method of claim 16, wherein generating the plurality of laser beams comprises generating, by the plurality of laser devices, the plurality of laser beams at the plurality of different wavelengths, wherein each of the plurality of laser devices comprises an Erbium (Er) laser medium or a Thulium (Tm) laser medium. ### Claim 19 (depends on 16) The method of claim 16, wherein the method further comprises: outputting, using the anti-UAV system, the combined laser beam at a first scan angle; detecting the UAV based on outputting the combined laser beam at the first scan angle, and wherein directing the combined laser beam onto the detected UAV comprises converging the combined laser beam onto the detected UAV by reducing the first scan angle. ### Claim 20 An anti-unmanned aerial vehicle (UAV) computing platform, comprising: one or more processors; and a non-transitory computer-readable medium having processor-executable instructions stored thereon, wherein the processor-executable instructions, when executed by the one or more processors, facilitate: providing instructions to output a combined laser beam at a first scan angle, wherein a coarse wavelength division multiplexing (CWDM) combiner combines a plurality of laser beams that are at a plurality of different wavelengths into the combined laser beam; detecting an unmanned aerial vehicle (UAV) within the first scan angle of the combined laser beam based on a reflection of the combined laser beam; and based on detecting the UAV, providing instructions to the CWDM combiner to converge the combined laser beam onto the detected UAV by reducing the first scan angle.