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光学通信系统在通信网络中随处可见。随着通信量的增加,数据传输速率也在增加,而可用的带宽就成了一种稀缺的资源。为了更有效地利用这一资源,人们在光学通信系统中普遍采用了波分多路传输技术。然而,波分多路传输系统需要准确的波段选择、稳定的可调谐激光器或滤波器以及良好的光谱纯度。这些不仅会增加其成本,而且还会增加其复杂性。 本发明提供一种可用于滤波或分离间距极小的通
Optical communication system can be seen everywhere in the communication network. As traffic increases, data rates also increase, and available bandwidth becomes a scarce resource. In order to utilize this resource more effectively, WDM technology has been widely used in optical communication systems. However, WDM systems require accurate band selection, stable tunable lasers or filters, and good spectral purity. These not only increase their costs but also increase their complexity. The present invention provides a filter that can be used to filter or isolate very small gaps