The 1817-FS InGaAs Balanced Optical Receiver is ideal for coherent heterodyne-detection applications including Doppler LIDAR, and optical coherence tomography. This free space, 900 to 1700 nm, DC to 80-MHz balanced receiver can make the difference when you need to see a small signal. Just like our Model 16x7-AC-FS 650-MHz and 800-MHz balanced receivers, the Model 1817-FS balanced receiver works by subtracting the photocurrent from two well-matched photodetectors. Common-mode noise that is present on both the reference and signal beams (such as laser-intensity noise) is cancelled out and doesn't appear as part of the signal. Any imbalance between the photocurrents generated by the reference and signal detectors, whether intentional or unintentional, is amplified and is seen as the signal. These Models 18X7 receivers contain the same detectors as those in our Model 18X1 Series receivers, and provide higher gain than their wider-bandwidth 650-MHz and 800-MHz balanced receiver counterparts. These units are sold as FC-connectorized versions only. To ensure safe operation, we strongly recommend our Model 0901 power supply. 8-32 mounting thread. M4 metric adaptor and tool now included.

1817-FS InGaAs平衡光接收机是理想的相干外差探测应用，包括多普勒激光雷达和光相干层析成像。这个自由空间，900到1700纳米，DC到80兆赫的平衡接收器可以在你需要看到小信号时发挥作用。就像我们的16x7-AC-FS 650-MHz和800-MHz平衡接收机一样，1817-FS平衡接收机通过从两个匹配良好的光电探测器中减去光电流来工作。参考光束和信号光束上的共模噪声(如激光强度噪声)被抵消，并且不作为信号的一部分出现。参考探测器和信号探测器产生的光电流之间的任何不平衡，无论是有意的还是无意的，都会被放大并被视为信号。这些型号18X7接收器包含与我们型号18X1系列接收器相同的检测器，并且提供比宽带宽650兆赫和800兆赫平衡接收器更高的增益。这些单元只作为fc连接版本出售。为了确保安全运行，我们强烈推荐我们的0901型电源。8-32越来越多的线程。现在包括M4公制适配器和工具。