POLARIZATION-SENSITIVE LOW-COHERENCE REFLECTOMETER FOR BIREFRINGENCE CHARACTERIZATION AND RANGING
POLARIZATION-SENSITIVE LOW-COHERENCE REFLECTOMETER FOR BIREFRINGENCE CHARACTERIZATION AND RANGING
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DOI：
10.1364/josab.9.000903
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发表时间：
1992-06-01
影响因子：
1.9
通讯作者：
FUJIMOTO, JG
中科院分区：
文献类型：
--
作者：
HEE, MR;HUANG, D;FUJIMOTO, JG
我们提出了一种偏振敏感光学相干域反射计，能够表征双折射样品中每个反射点处正交线性偏振模式之间的相位延迟。该装置对垂直于测距的平面内样本的旋转不敏感。相位测量精度为+/-0.86度，但反射计可以区分小至0.05度的双折射局部变化，距离分辨率为10.8μm，动态范围为90dB。演示了波片、电光调制器和小腿冠状动脉中的双折射敏感测距。
We present a polarization-sensitive optical coherence-domain reflectometer capable of characterizing the phase retardation between orthogonal linear polarization modes at each reflection point in a birefringent sample. The device is insensitive to the rotation of the sample in the plane perpendicular to ranging. Phase measurement accuracy is +/-0.86-degrees, but the reflectometer can distinguish local variations in birefringence as small as 0.05-degrees with a distance resolution of 10.8-mu-m and a dynamic range of 90 dB. Birefringence-sensitive ranging in a wave plate, an electro-optic modulator, and a calf coronary artery is demonstrated.