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    • 35. 发明专利
    • Fiber laser device
    • 光纤激光器件
    • JP2011054913A
    • 2011-03-17
    • JP2009205197
    • 2009-09-04
    • Fujikura Ltd株式会社フジクラ
    • KITABAYASHI KAZUHIRO
    • H01S3/06H01S3/094
    • H01S3/06754H01S3/06733H01S3/094069H01S3/09408H01S3/09415H01S3/10007H01S3/1301H01S3/1618H01S5/0612
    • PROBLEM TO BE SOLVED: To provide a fiber laser device capable of performing stable processing and measuring even when a temperature change is caused. SOLUTION: The fiber laser device includes an excitation light source 20 for outputting an excitation light of wavelength λ and a rare earth-added fiber. The wavelength λ is such a wavelength wherein ΔP, Δλp×A'(λ) and ΔA(λ) mutually offset, when a fluctuation rate of strength of the excitation light to temperature is ΔP [dB/°C], a fluctuation rate of wavelength of the excitation light to temperature is Δλp [nm/°C], a fluctuation rate of the amount of absorption of the excitation light per unit wavelength in wavelength λ nm, which is a fluctuation rate of the amount of absorption of the excitation light in the rare earth-added fiber 50 when the wavelength of the excitation light is fluctuated, is A'(λ) [dB/nm], and a fluctuation rate of the amount of absorption of the excitation light per unit temperature in wavelength λ nm, which is a fluctuation rate of absorption of the excitation light in the rare earth-added fiber 50 when the temperature of the rare earth-added fiber 50 is fluctuated, is ΔA(λ) [dB/°C]. COPYRIGHT: (C)2011,JPO&INPIT
    • 要解决的问题:提供即使当发生温度变化时也能够进行稳定的处理和测量的光纤激光器件。 解决方案:光纤激光器件包括用于输出波长λ的激发光的激发光源20和添加有稀土的光纤。 当激发光强度的波动率为ΔP[dB /℃]时,波长λ为波长λP,Δλp×A'(λ)和ΔA(λ)相互偏移的波长,波长λ 激发光的温度的波长为Δλp[nm /℃],波长λnm的每单位波长的激发光的吸收量的波动率为激发光的吸收量的波动率 在激发光的波长波动时的稀土添加纤维50中,为A'(λ)[dB / nm],波长λnm的每单位温度的激发光的吸收量的变动率 是当稀土添加纤维50的温度波动时,稀土添加纤维50中的激发光的吸收波动率为ΔA(λ)[dB /℃]。 版权所有(C)2011,JPO&INPIT
    • 40. 发明专利
    • Laser light source device
    • 激光光源设备
    • JP2011008042A
    • 2011-01-13
    • JP2009151679
    • 2009-06-26
    • Panasonic Corpパナソニック株式会社
    • KOBAYASHI YUICHIWATANABE KATSUYA
    • G02F1/37H01S3/06H01S3/094H01S3/10
    • PROBLEM TO BE SOLVED: To increase wavelength conversion efficiency and to stabilize an output of a laser beam.SOLUTION: A laser light source device is provided, in which a phase matching temperature is set to be higher than the ambient temperature, and a fiber laser 101 and a power supply 114 are disposed in a heat sink side of a Peltier element 104. By setting the phase matching temperature to be higher than the ambient temperature, the Peltier element 104 acts to heat a wavelength conversion element 102, while the heat sink side of the Peltier element 104 acts to be endothermic, which cools the fiber laser 101 and the power supply 114 disposed close to the heat sink, and suppresses the fiber laser 101 from reaching a high temperature. Thereby, the wavelength conversion efficiency is increased and the laser beam output can be stabilized.
    • 要解决的问题:提高波长转换效率和稳定激光束的输出。解决方案:提供一种激光光源装置,其中相位匹配温度设定为高于环境温度,光纤激光器 101和电源114设置在珀耳帖元件104的散热器侧。通过将相位匹配温度设置为高于环境温度,珀尔帖元件104用于加热波长转换元件102,同时散热片 珀耳帖元件104的侧面起吸热作用,其使靠近散热片的纤维激光器101和电源114冷却,抑制光纤激光器101达到高温。 由此,波长转换效率提高,激光束输出稳定。