An optical filter switchable between bandpass and bandstop responses is proposed by analyzing frequency response in the complex plane. The device is fabricated based on silicon-on-insulator wafer. Experimental results show that the bandstop response has an extinction ration of exceeding 62.5 dB and a full width at half maximum (FWHM) bandwidth of 971 MHz, and the bandpass response has a rejection ration of 19.5 dB and a FWHM bandwidth of 840 MHz, respectively. The device also exhibits good tunability for both bandstop and bandpass responses.

中文翻译：

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可在 SOI 晶圆中的带阻和带通响应之间切换的滤光器

通过分析复平面中的频率响应，提出了一种可在带通和带阻响应之间切换的光学滤波器。该器件是基于绝缘体上硅晶片制造的。实验结果表明，带阻响应具有超过62.5 dB的消光比和971 MHz的半高宽（FWHM）带宽，带通响应具有19.5 dB的抑制比和840 MHz的FWHM带宽。 . 该器件还表现出良好的带阻和带通响应可调性。