[16a-K305-1~8] 3.13 Silicon photonics, Photonics-electronics convergence, Optical control

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16a-K305-7] Notch Filter in Alumina Waveguides for Diamond-Color-Centers Quantum Computing

〇Ryota Kitagawa¹, Takuto Yamaguchi¹, Naoki Fushimi¹, Masaharu Hida¹, Tetsuya Miyatake¹, Toshiyuki Miyazawa¹, Kenichi Kawaguchi¹, Ryoichi Ishihara², Shintaro Sato¹ (1.Fujitsu Ltd., 2.TU Delft)

Keywords:

alumina,notch filter,visible light

Quantum computers using diamond color centers enable scalable qubit coupling through optical interconnects. To remove the 532 nm non-resonant light, an essential technique, we designed and fabricated a Bragg grating (BG) in a visible-light alumina waveguide. A notch filter characteristic with a center wavelength of 529 nm was confirmed for a BG period Λ of 171 nm. The center wavelength linearly depends on Λ, should be 532 nm for Λ = 172 nm. This achievement contributes to the integration of quantum computers based on diamond color centers.