偏振消光比自动测试系统 (CUBE-PM100 & CUBE-ER100) 

       在对待测保偏 (PM) 设备 (DUT) 进行偏振消光比 (PER) 测量时，如果光源的 PER 低或未与 PM 光纤轴对准，通常会产生较大的 PER 测量不确定性。为减少这种测量不确定性，Inline Photonics 自豪地推出了业内首个自动化 PER 测量双组件系统，它能够自动消除 PER 测量中的误差来源。该双组件系统包括一个偏振最大化模块 (CUBE-PM100) 和一个 PER 测量模块 (CUBE-ER100) ，它们协调工作，自动优化线性偏振光到 DUT 的 PM 尾纤角度，同时可以高速测量 PER。它们将总 PER 测量时间（包括设置时间）缩短至两分钟以内，同时保证高测量精度，测量不确定性小于 0.25 dB，这在测量时间和精度上比传统 PER 测量系统提高了十倍以上。

        CUBE-PM100 是一个电动线性偏振光发生器，将输入的宽光谱光转换为高线性偏振光（PER > 45 dB），并将光耦合到自由空间中的 PM 光纤中。电机可以精细调整线性偏振光与 PM 光纤轴之间的角度，以实现超过 45 dB 的最大 PER。

CUBE-ER100 是一款高性能的 PER 测量仪，具有 52 dB 的 PER 测量范围、0.028   度的角分辨率、600nm 到 1620nm 的宽工作波长范围，以及高达每秒 50 个数据点的快速测量速度。

        CUBE-PM100 和 CUBE-ER100 各自配备一个全速 USB 2.0 端口用于计算机控制，以及一个 UART 端口用于与 Inline Photonics 的其他 LabCUBE™ 模块进行互连，以扩展功能。CUBE-ER100 还具有两个模拟输出，用于 PM 光纤自动对准系统中的闭环控制，以及两个通用 TTL 输入/输出，用于测量和控制同步。

         CUBE-PM100 旨在替代传统 PER 测量系统中的在线偏振器和费时的融合拼接过程。用户只需通过两个 FC 光纤裸纤适配器分别将 DUT 的输入和输出 PM 光纤连接到 CUBE-PM100 输出端和 CUBE-ER100 输入端。然后，CUBE-PM100 将通过 UART 端口自动从 CUBE-ER100 读取 PER 测试结果，并通过优化 CUBE-PM100 中的对准角度来检索最大 PER。有了这个双组件系统，您再也不必担心 PM 光纤或设备的 PER 测量不确定性。

In the polarization extinction ratio (PER) measurement of a polarization maintaining (PM) device under test (DUT), large PER measurement uncertainties often arise if the PER of the light source is low or is not well aligned with the PM fiber axis. To minimize such measurement uncertainties, In-line Photonics is proud to introduce the industry’s first automated PER measurement duo, which can automatically eliminate the error sources in the PER measurements. The duo comprises a polarization maximizer cube (CUBE-PM100) and a PER meter cube (CUBE-ER100), which are coordinated to automatically optimize the linear polarization into the PM fiber pigtail of DUT while measuring the PER at high speed. Collectively, they reduce the total PER measurement time (including setup time) to under two minutes while assuring a high measurement accuracy with an uncertainty of less than 0.25 dB, which are more than ten times the improvement for both the measurement time and accuracy over conventional PER measurement systems.

CUBE-PM100 is a motorized linear polarization generator that converts input broadband light to highly linearly polarized light (PER > 45 dB) and couples the light into a PM fiber in free space. A motor can finely adjust the angle between the linear polarization and the PM fiber axis to achieve an over 45 dB maximum PER.

The CUBE-ER100 is a high-performance PER meter with a PER measurement range of 52 dB, an angular resolution of 0.028^o, a wide operating wavelength range from 600nm to 1620nm, and a fast measurement speed of up to 50 data points per second.

CUBE-PM100 and CUBE-ER100 each come with a full-speed USB 2.0 port for computer control and a UART port for interconnecting with other LabCUBE^TM modules from In-line Photonics for expanded functionalities. CUBE-ER100 also has two analog outputs for the closed-loop control in the PM fiber auto-alignment system and two general-purpose TTL inputs/outputs for measurement and control synchronization. CUBE-PM100 is designed to replace the inline polarizers and the time-consuming fusion splicing between the inline polarizer and the DUT in conventional PER measurement systems. Instead, the user connects the input and output PM fibers of DUT to CUBE-PM100 output and CUBE-ER100 input through two FC bare-fiber adapters, respectively. Then the CUBE-PM100 will automatically read PER test results from CUBE-ER100 through the UART port and retrieves the maximum PER by optimizing the alignment angle in CUBE-PM100. With the duo, no more worries about the PER measurement uncertainties of PM fibers or devices.