[18a-Z18-1~11] 3.16 Optics and Photonics English Session

▲ [18a-Z18-3] Bipolar thermo-optic Mach–Zehnder interferometer with pulse-height modulation

〇(D)Hanzhi Tang¹, Shuhei Ohno¹, Yuto Miyatake¹, Kasidit Toprasertpong¹, Shinichi Takagi¹, Mitsuru Takenaka¹ (1.Univ. Tokyo)

Keywords:integrated photonic devices, modulators, optical switching devices

We propose to integrate titanium nitride (TiN) heaters and p-n diodes for bipolar Mach–Zehnder interferometer. Thanks to the small series resistance, our design shows higher modulation efficiency and achieved 2π phase change in both directions. We also measured the thermal response of the heater under pulsed control and conducted pulsed height modulation.