LASER DEVICE AND OPTOACOUSTIC MEASUREMENT DEVICE E

专利名称：LASER DEVICE AND OPTOACOUSTIC

MEASUREMENT DEVICE EQUIPPED WITHSAME

发明人：MURAKOSHI Dai,IRISAWA Kaku,TADA Takuji申请号：EP157638.1申请日：20150205公开号：EP3125378A4公开日：20170308

摘要：In a laser device which uses a laser medium having two oscillation wavelengthswith different light emission efficiencies and a photoacoustic measurement deviceincluding the laser device, the intensity of light at each wavelength made independentlycontrollable without increasing the number of parts of the device. The laser deviceincludes a laser medium (laser rod 51) which has oscillation wavelengths at a first

wavelength and a second wavelength with higher light emission efficiency than at the firstwavelength, an excitation section (flash lamp 52), a first resonator C1, a second resonatorC2, a Q-value change unit (56 and 57) which oscillates light having the first or secondwavelength through Q switching, and a control section (control circuit 62) which controlsthe excitation section and the Q-value change unit. The control section oscillates lighthaving the first wavelength through Q switching when a first delay time has elapsed afterthe excitation of the laser medium has been started in a case where the oscillationwavelength is the first wavelength, and oscillates light having the second wavelengththrough Q switching when a second delay time has elapsed after the excitation of thelaser medium has been started in a case where the oscillation wavelength is the second

wavelength.

申请人：FUJIFILM Corporation

地址：26-30, Nishiazabu 2-chome Minato-ku Tokyo 106-8620 JP

国籍：JP

代理机构：Klunker . Schmitt-Nilson . Hirsch

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