[9p-Z19-1~16] 3.15 Silicon photonics and integrated photonics

[9p-Z19-15] Polarization independent Si waveguide Bragg grating resonant wavelength filter using polarization mode converter

〇Hideaki Okayama^1,2, Yosuke Onawa^1,2, Hiroyuki Takahashi^1,2, Daisuke Shimura^1,2, Hiroki Yaegashi^1,2, Hironori Sasaki^1,2 (1.PETRA, 2.OKI)

Keywords:silicon photonics, wavelength filter, grating

Polarization independent wavelength filter is required in WDM optical communication and interconnection. In this report we describe a experimental polarization independent wavelength filter composed of TE0/TE1 mode conversion Bragg grating incorporating a resonator cavity and TM0/TE1 polarization mode converter. Polarization independent 1 nm wide flat-top wavelength transmission peak and 30 dB extinction ratio were attained.