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When the modes of transmitters are designed according to the worst channel state, the reliability of the communication can be guaranteed; however, when the channel states later improve, the spectrum efficiency becomes lower. In this case, transmitters cannot work efficiently or robustly in UWA time...
Compared with that in the near infrared band, the device with TiO2TiO2 film has a longer mode field diameter in the visible spectrum band (Table 2). Table 2. Comparison of the properties of the proposed sensors with existing ones. 4. Conclusions In summary, a D-shaped two-core PCF-...