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Polymer large core optical splitter 1 × 2 Y for high-temperature operation

机译：聚合物大芯分光器1×2 Y，用于高温操作

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摘要

The design, fabrication and measurement of the properties of the large core 1x2 Y optical planar splitters for high-temperature operation are demonstrated. The splitters were designed by the beam propagation method optimized for operation wavelengths 650nm and for assembling with optical fibre having core diameter 600 mu m and cladding 630 mu m. The splitters consisted of optical glue core and cladding layers made of Cyclo Olefin Polymer. The applied materials allowed for higher operating temperatures (up to 120 degrees C) than standard splitters made of acrylate plastic (up to 80 degrees C). The splitters show optical losses lower than 4.0dB at 532nm/650nm, 2.6dB at 850nm, 3.4dB at 1300nm and 5.1dB at 1550nm at room temperature. The optical losses measured in the thermal shock test chamber at temperatures up to 120 degrees C showed that the best sample had losses lower than 4.2dB at 850/1300nm, 4.6dB at 532nm and 7.6dB at 650nm. Such splitters would be very useful in places with elevated temperatures, for instance in engine parts where the expected temperature can reach as high as 120 degrees C.
机译：说明了用于高温工作的大芯1x2 Y光学平面分光镜的设计，制造和性能测量。分离器是通过光束传播方法设计的，该方法针对工作波长650nm进行了优化，并与纤芯直径为600μm和包层为630μm的光纤组装在一起。分离器由光学胶芯和由Cyclo Olefin Polymer制成的包层组成。与标准的丙烯酸酯塑料分流器（最高80摄氏度）相比，所施加的材料允许更高的工作温度（最高120摄氏度）。分光器在室温下的光损耗在532nm / 650nm下低于4.0dB，在850nm下为2.6dB，在1300nm下为3.4dB，在1550nm下为5.1dB。在高达120摄氏度的温度下在热冲击试验室中测量的光损耗表明，最佳样品的损耗低于850 / 1300nm的4.2dB，低于532nm的4.6dB和低于650nm的7.6dB。这种分流器在温度升高的地方非常有用，例如在发动机部件中预期温度可以达到120摄氏度。

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