Study on Broadband Optical Modulator with Superconducting Transmission Line

我们已经研究了一个长电压光学调制器部署高Tc超导电共振型电极用于在子载波光学传输系统中使用的微波信号由强度调制的光波传输系统。这表明，光波的微波调制可以通过使用具有高Q因子的超导电电极来产生有效的效果。A preliminary experiment using LiNbO·D23·D2 （LN） optical modulator with YBa·D22·D23·D2O·D2x·D2 （YBCO） electrode demonstrates Dc and microwave modulation of the optical wave. 1。该设计的共振型光学调制器带有撞击电路，以及YBCO薄膜在MgO基础上被雇用为电子元件。它是由数字计算显示的，当调制效率增加时，高Q超级导体被用作电子元件。我们在光学调制器上进行了初步的实验，它是由LN和MgO材料的倒装芯片绑定实现的。基于设计和计算，模块化实验在低温度下进行。它被证明是一种光学调制器，用高Tc超导电的电极通过倒装芯片键合方法有效地操作。

We have studied a long voltage optical modulator employing high Tc superconducting resonant-type electrodes for use in the sub-carrier optical transmission system in which microwave signals are carried by intensity modulated light-wave. It is shown that microwave modulation of light-wave can be made efficient by using superconducting electrodes with high Q-factor. A preliminary experiment using LiNbOィイD23ィエD2 (LN) optical modulator with YBaィイD22ィエD2CuィイD23ィエD2OィイD2xィエD2 (YBCO) electrode demonstrates dc and microwave modulation of the optical wave.1. The design of resonant type optical modulators with impedance circuits in presented, and YBCO thin films on MgO substrate were employed as the electrodes. It is shown by numerical calculation that the modulation efficiency increases when high Q superconductors are used as the electrodes.2. We present a preliminary experiment on the optical modulator, which was realized by flip-chip bonding of LN and MgO substrates. Based on the design and calculation, modulation experiments were carried out at low temperatures. It was demonstrated that the optical modulator with high Tc superconducting electrode by the flip-chip bonding method operated effectively.