应力双折射

低双折射旋转光纤LB650 | LB1060 | LB1300 | LB1300RC | PME1300-10 Spun fiber：Rotating glass preform during fiber drawing process produces a waveguide with unique properties: all fiber non-uniformities are averaged along all possible directions, effectively cancelling out total fiber birefringence. With total (but not local) birefringence close to zero, we obtain a fiber that will hold circular polarization (even when bent or twisted). Unlike conventional PM fibers that can hold only linearly polarized light, or annealed fiber that requires special handling, this low-birefringence fiber preserves both linear and circular polarization and can relay it with minimum error over large distances. Highly-birefringent preforms with incorporated stress produce spun fibers that can withstand significant bending and twisting and hold polarization over large number of coils with reasonable accuracy (without costly annealing process). Polarization accuracy in this case depends on local (instant) birefringence that introduces a small constant error, independent of fiber length. Elliptical core fiber Our elliptical-core PME1300-10 fiber provides high polarization extinction and insensitivity to bending and twisting stress. Unlike conventional PM fibers, birefringence of the elliptical-core waveguide has low thermal dependence (10 times lower than Panda). Due to core geometry the splice losses to a conventional circular-core fiber (SMF, Panda or Bow-tie) are asymmetrical - 0.5 dB for circular-toelliptical coupling and 2.5 dB for elliptical-to-circular arrangement.Elliptical core fiber：Our elliptical-core PME1300-10 fiber provides high polarization extinction and insensitivity to bending and twisting stress. Unlike conventional PM fibers, birefringence of the elliptical-core waveguide has low thermal dependence (10 times lower than Panda). Due to core geometry the splice losses to a conventional circular-core fiber (SMF, Panda or Bow-tie) are asymmetrical - 0.5 dB for circular-toelliptical coupling and 2.5 dB for elliptical-to-circular arrangement.Features：- High extinction ratio- Reduced coupling loss- Low temperature dependence Applications - Fiber-optic gyros- Optical current sensors - Fiber amplifiers需要咨询更多的服务请与我们的市场人员联系。

PR-32a折射仪 日本ATAGO 产品详细介绍 高品质RX-5000数字式折射计系列之一，带有漏斗槽,可以灌入样品进行连续测量。也可对不同样品进行连续测量，不需每次清洗棱镜，提高测量效率。 产品功能描述 测量范围： 　 折射率(nD) 1.32700 to 1.58000 Brix 0.00 to 95.00% 最小标度： 　 折射率(nD) 0.00001 Brix 0.01% 测量精度： 　 折射率(nD) ± 0.00004 Brix ± 0.03% 温度校正 5~60℃ 输出接口 RS-232, CDP-62数字式打印机(另售) 损耗 40VA 电源需求 电压 AC100~240V, 50/60Hz 产品特征 长度 21cm 宽度 29cm 高度 34cm 重量 11.0kg(除漏斗槽) 产品持有证书 　 CE

数字手持袖珍折射仪PAL-RI 数字手持袖珍折射仪PAL-RI是PAL系列中唯一可测量折射率的新款产品.适合在药品及化工制品等以折射率来管理产品质量的过程中使用. Model PAL-RI 型号 3850 测量范围 折射指数 1.3306 至1.5284 溶解值 折射指数0.0001 测量准确度 折射指数± 0.0003 (在20度摄氏使用水时) 环境温度 10 至40° C 测量温度 5 至45° C (溶解值1° C ) 样本量 0.3 ml 测量时间 3 秒 电源 2 × AAA 电池 国际保护等级 IP65 无尘且对喷射水柱具防护作用 尺寸重量 55(W) × 31(D)× 109(H)毫米, 100公克(不含零件的重量) 选件 &bull PAL保管箱: RE-39409&bull 携带连: RE-39410