LAYERTEC 啁啾镜对 (超快激光反射镜)
总览(Chirped Mirror Pair)啁啾镜用于补偿超短激光脉冲与色散相关的传播时间差。如果 GDD 曲线中的振荡很强,则需要啁啾镜对(由两个啁啾镜组成)。对于高带宽的镜子尤其如此。啁啾镜的 GDD 曲线并不代表直线曲线,而是显示振荡。其中,这些强度有多强取决于光谱带宽。对于小于同类布拉格镜带宽的 GDD 带宽,振荡相当小。另一方面,具有高带宽的镜子表现出强烈的 GDD 振荡。LAYERTEC 啁啾镜对 (超快激光反射镜),LAYERTEC 啁啾镜对 (超快激光反射镜)通用参数 负色散镜对的 GDD 光谱可以通过使用相应的镜对来实现校正。它们由两个具有相反 GDD 曲线的不同涂层介电镜组成,激光束可以根据需要在两个镜之间来回反射(见图)。这些镜子针对小入射角进行了优化,从而可以实现大量反射。啁啾镜对按型号82条型号规格正/背面形状涂层Chirped Mirror Pair 148921Corning 7980 2F or equal&emptyv = 25 mmt = 6.35 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2) HRp(5°,340-440nm)99% GDD(5°,340-440nm)=-25fs² Chirped Mirror Pair 148920Corning 798040 mm x 10 mmwith marked cornert = 12.5 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2) HRp(5°,340-440nm)99%GDDp(5°,340-440nm)=-25fs² Chirped Mirror Pair 102504Corning 7980 2F or equal&emptyv = 12.7 mmt = 6.35 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2)HR(0°,360-480nm)99.5%, GDD=-15fs² Chirped Mirror Pair 103851Corning 7980 2F or equal&emptyv = 25 mmt = 6.35 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2)HR(0°,360-480nm)99.5%GDDu(0-8°,360-480nm)=15fs² Chirped Mirror Pair 107549Corning 7980 2F or equal&emptyv = 25 mmt = 6.35 mmFront&ensp Side (S2)concaver = 250 mmRear&ensp Side (S1)planeFront&ensp Side (S2)PR(0°,430-690nm)=99.5(±0.3%), GDD=-20fs² Rear&ensp Side (S1)AR(0°,430-690nm)Chirped Mirror Pair 148545Corning 798040 mm x 10 mmwith marked cornert = 12.5 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2) HR(0°,470-810nm)99.7%GDD(0°,470-810nm)=-40fs² Chirped Mirror Pair 109812Corning 7980 2F or equal&emptyv = 25 mmt = 6.35 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2)HR(0°,480-640nm)99.85%, GDD=-70--40fs² Chirped Mirror Pair 109811Corning 798040 mm x 10 mmwith marked cornert = 12.5 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2)HR(0°,480-640nm)99.85%, GDD=-70--40fs² Chirped Mirror Pair 109936Corning 7980 2For equal&emptyv = 12.7 mmt = 6.35 mmFront&ensp Side (S2)planeRear&ensp Side (S1)planeFront&ensp Side (S2)HR(0°,480-660nm)99.85%, GDD=-22fs²