Stark-tuned laser modulator
    2.
    发明授权
    Stark-tuned laser modulator 失效
    Stark调谐激光调制器

    公开(公告)号:US4085387A

    公开(公告)日:1978-04-18

    申请号:US715461

    申请日:1976-08-18

    IPC分类号: G02F1/17 H01S3/10

    CPC分类号: G02F1/174

    摘要: Apparatus is disclosed for modulating the R(18) or the R(24) lines of the (00.degree.1 - 10.degree.0) vibrational band of a C.sup.13 O.sub.2.sup.16 laser using Stark-tuned absorption resonances in N.sup.14 H.sub.3. A dc electric field is applied to a Stark cell containing N.sup.14 H.sub.3 gas to tune the asQ(6,6) absorbing transition in N.sup.14 H.sub.3 so as to overlap the R(18) laser line or the asQ(2,2) transition so as to overlap the R(24) line. Modulating frequencies approaching 300 MHz can be employed, and a 100% modulation depth is achievable with audio modulating frequencies. Unsaturated modulation has been obtained using a Stark cell of 10 cm length and containing N.sup.14 H.sub.3 gas at a pressure of 0.45 Torr for a laser power density of 12 watts per cm.sup.2.

    摘要翻译: 公开了使用N14H3中的Stark调谐吸收共振来调制C13O216激光器(00-1-10℃)振动带的R(18)或R(24)线的装置。 将直流电场施加到含有N14H3气体的Stark单元以调节N14H3中的as(6,6)吸收跃迁,以便与R(18)激光线或asQ(2,2)跃迁重叠,以便重叠 R(24)线。 可以采用接近300MHz的调制频率,并且可以通过音频调制频率实现100%的调制深度。 使用10cm长的Stark单元并且在0.45Torr的压力下含有N14H3气体,对于12w / cm 2的激光功率密度已经获得不饱和调制。