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美国康宁公司已研制成一种低损耗耦合器,这种耦合器可提供各种分光比,每档为5％,而标准的每档为10％～20％。据该公司介绍:尽管降低了电子均衡调节的要求和放宽了损耗预算余量,仍有可能实现光功率的最佳平衡,使我们可以用这种平衡来补偿经过不同光纤路径而出现的信号差异。这种双窗口定向耦合器将允许有线电视经营者在把光纤用于1310nm和1550nm调幅视频分配系统时使用较长的无失真干线,据说这种干线可提高图像质量。第三分路玻璃结构中的光纤耦合区采用多分路工艺密封,因此这种工艺所
Corning Incorporated has developed a low-loss coupler that offers a variety of splitting ratios of 5% per file compared to 10% to 20% for each standard. According to the company: Despite the reduced requirements for electronic equalization adjustment and relaxation of the loss budget margin, it is still possible to achieve the optimal balance of optical power so that we can use this balance to compensate for signal differences across different fiber paths . This dual-window directional coupler will allow cable operators to use longer, undistorted trunk lines when using optical fibers for 1310 nm and 1550 nm AM video distribution systems, which is said to improve image quality. The third split glass structure in the fiber coupling area with multi-tap process seal, so this process