Broadband or mid-infrared fiber light sources
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G02B-006/00
H01S-005/10
H01S-003/30
G01J-003/10
G01B-009/02
G01J-003/02
H01S-005/00
H01S-005/14
G02F-001/35
H01S-003/067
H01S-003/094
H01S-003/102
출원번호
US-0186171
(2014-02-21)
등록번호
US-9077146
(2015-07-07)
발명자
/ 주소
Islam, Mohammed N.
출원인 / 주소
Omni Medsci, Inc.
대리인 / 주소
Brooks Kushman P.C.
인용정보
피인용 횟수 :
5인용 특허 :
164
초록▼
An optical system for use in material processing includes a plurality of semiconductor diodes coupled to a beam combiner to generate a multiplexed optical beam. A cladding pumped fiber amplifier or laser receives the multiplexed optical beam and forms an intermediate beam having at least a first wav
An optical system for use in material processing includes a plurality of semiconductor diodes coupled to a beam combiner to generate a multiplexed optical beam. A cladding pumped fiber amplifier or laser receives the multiplexed optical beam and forms an intermediate beam having at least a first wavelength. An optical element receives the intermediate beam and forms an output beam with an output beam wavelength, wherein the output beam wavelength is at least in part longer than the first wavelength. A subsystem includes lenses or mirrors to deliver a delivered portion of the output beam to a sample. The delivered output beam has a temporal duration greater than about 30 picoseconds, a repetition rate between continuous wave and Megahertz or higher, and a time averaged intensity of less than approximately 50 MW/cm2. The output beam has a time averaged output power of 20 mW or more.
대표청구항▼
1. An optical system for use in material processing, the system comprising: a plurality of semiconductor diodes, each of the diodes configured to generate an optical beam;a beam combiner configured to receive at least a portion of the optical beams from the plurality of semiconductor diodes and to g
1. An optical system for use in material processing, the system comprising: a plurality of semiconductor diodes, each of the diodes configured to generate an optical beam;a beam combiner configured to receive at least a portion of the optical beams from the plurality of semiconductor diodes and to generate a multiplexed optical beam; anda cladding-pumped fiber amplifier or laser configured to receive at least a portion of the multiplexed optical beam and to form an intermediate beam having at least a first wavelength;an optical element configured to receive at least a portion of the intermediate beam and to form an output beam with an output beam wavelength, wherein at least a portion of the output beam wavelength is longer than at least a portion of the first wavelength; anda subsystem comprising one or more lenses or mirrors configured to receive a received portion of the output beam and to deliver a delivered portion of the output beam to a sample, wherein the delivered portion of the output beam has a temporal duration greater than approximately 30 picoseconds, wherein the delivered portion of the output beam has a repetition rate between continuous wave and Megahertz or higher, wherein a time averaged output power of the output beam is about 20 mW or more, and wherein a time averaged intensity of the delivered portion of the output beam is less than approximately 50 MW/cm2. 2. The optical system of claim 1, wherein at least a portion of the delivered portion of the output beam is scanned across at least a part of the sample. 3. The optical system of claim 1, wherein at least a portion of the optical element comprises a crystal material or a Raman wavelength shifter. 4. The optical system of claim 1, wherein at least a portion of the sample comprises one or more powdered substances. 5. The optical system of claim 1, wherein at least a portion of the sample comprises a multi-layered structure. 6. The optical system of claim 1, wherein at least a portion of the sample is selected from the group consisting of hydro-carbons, amide groups, plasticizer and benzene rings. 7. An optical system for use in material processing, the system comprising: one or more semiconductor diodes configured to generate an input beam, wherein at least a portion of the input beam comprises a wavelength shorter than about 2.5 microns;one or more optical amplifiers configured to receive at least the portion of the input beam and to communicate an intermediate beam to an output end of the one or more optical amplifiers; andone or more optical fibers configured to receive at least a portion of the intermediate beam and to propagate the at least a portion of the intermediate beam to form at a distal end of the one of more optical fibers a first optical beam having at least a first wavelength;a nonlinear element configured to receive at least a portion of the first optical beam and to wavelength shift at least a portion of the first wavelength through a nonlinear effect in the nonlinear element to form an output beam with an output beam wavelength, wherein at least a portion of the output beam wavelength is longer than the at least a portion of the first wavelength; anda subsystem comprising one or more lenses or mirrors configured to receive a received portion of the output beam and to deliver a delivered portion of the output beam to a sample, wherein the delivered portion of the output beam has a temporal duration greater than approximately 30 picoseconds, wherein the delivered portion of the output beam has a repetition rate between continuous wave and Megahertz or higher, wherein a time averaged output power of the output beam is about 20 mW or more, and wherein a time averaged intensity of the delivered portion of the output beam is less than approximately 50 MW/cm2. 8. The system of claim 7, wherein at least a portion the one or more optical amplifiers form a cladding-pumped fiber amplifier or laser, and wherein at least a portion of the nonlinear element comprises a crystal material or a Raman wavelength shifter. 9. The system of claim 7, wherein at least a portion of the delivered portion of the output beam is scanned across at least a part of the sample. 10. The system of claim 7, wherein at least a portion of the sample comprises one or more powdered substances. 11. The system of claim 7, wherein at least a portion of the sample is selected from the group consisting of hydro-carbons, amide groups, plasticizer and benzene rings. 12. The system of claim 7, wherein at least a portion of the sample comprises a multi-layered structure. 13. An optical system for use in material processing, the system comprising: a plurality of semiconductor diodes, each of the diodes configured to generate an optical beam;a beam combiner configured to receive at least a portion of the optical beams from the plurality of semiconductor diodes and to generate a multiplexed optical beam; andan optical fiber configured to receive at least a portion of the multiplexed optical beam and to communicate the at least a portion of the multiplexed optical beam to form an intermediate beam;a light guide configured to receive at least a portion of the intermediate beam and to propagate the at least a portion of the intermediate beam to form an output beam having at least one wavelength; anda subsystem comprising one or more lenses or mirrors configured to receive a received portion of the output beam and to deliver a delivered portion of the output beam to a sample comprising one or more powdered substances, wherein the delivered portion of the output beam has a temporal duration greater than approximately 30 picoseconds, wherein the delivered portion of the output beam has a repetition rate between continuous wave and Megahertz or higher, wherein a time averaged output power of the output beam is about 20 mW or more, and wherein a time averaged intensity of the delivered portion of the output beam is less than approximately 50 MW/cm2. 14. The optical system of claim 13, wherein at least a portion of the output beam wavelength is in a wavelength range between approximately 1700 nm and 1750 nm. 15. The optical system of claim 13, wherein at least a portion of the optical fiber comprises a gain fiber doped with erbium, ytterbium or thulium. 16. The optical system of claim 13, wherein at least a portion of the light guide comprises a Raman wavelength shifter. 17. The optical system of claim 13, wherein at least a portion of the sample comprises one or more multi-layered structures. 18. The optical system of claim 13, wherein at least a portion of the delivered portion of the output beam is scanned across at least a part of the sample. 19. The optical system of claim 13, wherein at least a portion of the sample is selected from the group consisting of hydro-carbons, plasticizers and benzene rings. 20. The optical system of claim 13, wherein at least a portion of the sample comprises one or more amide groups.
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