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Ultra-wide tuning range of reconfigurable optical add-drop multiplexer using photo refractive polymer

机译:使用光折变聚合物的可重配置光分插复用器的超宽调谐范围

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We propose a reconfigurable optical add-drop multiplexer with ultra-broadband tuning range over 770 nm using a photorefractive polymer. This add-drop multiplexer can optically switch the assignment of the waveband used for communications by only changing the incident angles of two beams writing a hologram. In this work, we clarified the condition in which the channel tuning can be carried out without the location change in the port array. We simulated on the add-drop operation, and showed the ultra-wide tuning range from 780 to 1550 nm. Moreover, we suggested an apodization method for the grating distribution by controlling the intensity ratio of the writing beams to enhance the diffraction efficiency in add-drop operation. As a result, we showed that the apodization method for the grating distribution can improve the diffraction efficiency.
机译:我们提出了一种使用光折变聚合物的可重新配置的光学分插复用器,其超宽带调谐范围超过770 nm。通过仅改变写入全息图的两个光束的入射角,该分插复用器可以光学地切换用于通信的波段的分配。在这项工作中,我们阐明了在不更改端口阵列中位置的情况下可以进行通道调整的条件。我们对分插操作进行了仿真,并显示了从780到1550 nm的超宽调谐范围。此外,我们提出了一种通过控制写入光束的强度比来实现光栅分布的变迹方法,以提高分插操作中的衍射效率。结果表明,切趾变迹方法可以提高衍射效率。

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