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The thermo-optical variable optical attenuator based on SOI

机译:基于SOI的热光可变光衰减器

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摘要

A thermo-optical variable optical attenuator was studied based on silicon on insulator (SOI) substrate waveguide. It is composed by the single-mode waveguide, taper waveguide, multi-mode waveguide, and inclined electrode. By adjusting the applied voltage on the inclined electrode it can achieve continuously variable attenuation of the output light. The results we studied show that when the applied voltage is about 4.7 V (the corresponding power is 233 mW), the variation of the waveguide's core temperature is about 33 °C, the refractive index changes more than 5.0 x 10~(-3) and the attenuation will reach 35 dB, and the response time is only 35 μs.
机译:研究了基于绝缘体上硅(SOI)衬底波导的热光可变光衰减器。它由单模波导,锥形波导,多模波导和倾斜电极组成。通过调节在倾斜电极上施加的电压,可以实现输出光的连续可变衰减。我们研究的结果表明,当施加的电压约为4.7 V(对应的功率为233 mW)时,波导芯温度的变化约为33°C,折射率变化超过5.0 x 10〜(-3)衰减将达到35 dB,响应时间仅为35μs。

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