Low-Crosstalk Silicon Nitride Arrayed Waveguide Grating for the 800-nm Band

Autor: Jaegyu Park, Sang-Gi Kim, Seong-Wook Yoo, Gyungock Kim, Jiho Joo
Rok vydání: 2019
Předmět:
Zdroj: IEEE Photonics Technology Letters. 31:1183-1186
ISSN: 1941-0174
1041-1135
DOI: 10.1109/lpt.2019.2922425
Popis: We present a silicon nitride (SixNy) arrayed waveguide grating (AWG). Crosstalk in this AWG was reduced by decreasing the phase error in a multimode arrayed waveguide (WG) at center wavelength of 838 nm. 8-channel SixNy AWGs using arrayed WGs with double-etched inverse-tapered WG structure and cross-sectional area of $1.5 \times 1.5\,\,\mu \text{m}^{{2}}$ were fabricated. The AWG exhibited less than −29.6-dB crosstalk with 0.43-dB insertion loss for transverse electric (TE) polarization.
Databáze: OpenAIRE