Reduction of band edge absorption through the increase of bandgap energy shift by quantum well intermixing on III-V-OI wafer

Naoki Sekine; Kashidit Toprasertpong; Shinichi Takagi; Takenaka Mitsuru

Presentation information

Oral presentation

3 Optics and Photonics » 3.15 Silicon photonics and integrated photonics

[16p-Z10-1~17] 3.15 Silicon photonics and integrated photonics

Tue. Mar 16, 2021 1:30 PM - 6:15 PM Z10 (Z10)

Makoto Okano(AIST), Shota Kita(NTT), Hirohito Yamada(Tohoku Univ)

4:15 PM - 4:30 PM

[16p-Z10-11] Reduction of band edge absorption through the increase of bandgap energy shift by quantum well intermixing on III-V-OI wafer

〇Naoki Sekine¹, Kashidit Toprasertpong¹, Shinichi Takagi¹, Takenaka Mitsuru¹ (1.Univ. Tokyo)

Keywords:Quantum well intermixing, waveguide

We have reported waveguide PD using quantum well intermixing. However, the propagation loss of passive waveguide was limited by its small bandgap energy. In this research, we have enlarged the bandgap energy of the waveguide and reduced the loss originated from bandedge absorption.