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LASER DEVICE AND PHOTOACOUSTIC MEASUREMENT DEVICE

申请公布号:JP2013214703(A)

申请号:JP20120206754

申请日期:2012.09.20

申请公布日期:2013.10.17

申请人:
FUJIFILM CORP

发明人:KASAMATSU TADASHI;HIROTA KAZUHIRO

分类号:H01S3/106;A61B8/00;H01S3/00

主分类号:H01S3/106

摘要:PROBLEM TO BE SOLVED: To improve laser efficiency in a laser device capable of emitting lights of a first wavelength and a second wavelength without causing high costs.SOLUTION: A flash lamp 52 irradiates a laser rod 51 with excitation light. A optical resonator includes a pair of mirrors 53 and 54 that face with each other with the laser rod 51 interposed therebetween. A wavelength switching unit 56 includes a long pass filter that transmits light of a first wavelength or longer. When a wavelength of laser light to be emitted is the first wavelength, the wavelength switching unit 56 inserts the long path filter on a light pass of the optical resonator.

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