• Chinese Optics Letters
  • Vol. 13, Issue 10, 101301 (2015)
Xiangjie Zhao1, Yong Zhang1, Cheng Zeng1, Danping Li1, Ge Gao1, Qinzhong Huang1, Yi Wang1, Jinzhong Yu1、2, and Jinsong Xia1、*
Author Affiliations
  • 1Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China
  • 2Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China
  • show less
    DOI: 10.3788/COL201513.101301 Cite this Article Set citation alerts
    Xiangjie Zhao, Yong Zhang, Cheng Zeng, Danping Li, Ge Gao, Qinzhong Huang, Yi Wang, Jinzhong Yu, Jinsong Xia. Large-mode-volume transverse-electric-polarized distributed feedback cavity on silicon-on-insulator[J]. Chinese Optics Letters, 2015, 13(10): 101301 Copy Citation Text show less
    (a) Longitude mode distribution and (c) the transmission spectrum of a λ/4 shifted DFB cavity for different values of κL, (b) flatness of the longitude mode profile versus κL, and (d) the linewidth of the resonance mode versus κL.
    Fig. 1. (a) Longitude mode distribution and (c) the transmission spectrum of a λ/4 shifted DFB cavity for different values of κL, (b) flatness of the longitude mode profile versus κL, and (d) the linewidth of the resonance mode versus κL.
    2D-FDTD simulation result of λ/4 shifted DFB cavity: the mode profile of the three cavities with lengths of 25, 50, and 75 μm.
    Fig. 2. 2D-FDTD simulation result of λ/4 shifted DFB cavity: the mode profile of the three cavities with lengths of 25, 50, and 75 μm.
    (a) Coupling coefficient of the rib and strip waveguide as a function of the corrugation length and field distribution of the fundamental TE mode for (b) the rib and (c) the strip waveguide, where the dashed line indicates the sidewall corrugation.
    Fig. 3. (a) Coupling coefficient of the rib and strip waveguide as a function of the corrugation length and field distribution of the fundamental TE mode for (b) the rib and (c) the strip waveguide, where the dashed line indicates the sidewall corrugation.
    (a) SEM image of the phase-shift region and the sidewall corrugation (inset) of the DFB cavity and (b) optical microscope micrographs of the whole cavity C.
    Fig. 4. (a) SEM image of the phase-shift region and the sidewall corrugation (inset) of the DFB cavity and (b) optical microscope micrographs of the whole cavity C.
    (a) Illustration of the measurement experiment setup and (b) the measured transmission spectrum of cavities A, B, and C. The inset is a Lorentz fit of the resonance peak for cavity C.
    Fig. 5. (a) Illustration of the measurement experiment setup and (b) the measured transmission spectrum of cavities A, B, and C. The inset is a Lorentz fit of the resonance peak for cavity C.
    Coupling coefficient as a function of the corrugation length on the rib waveguides.
    Fig. 6. Coupling coefficient as a function of the corrugation length on the rib waveguides.
    CavityCoupling Coefficient κ (cm1)Cavity Length (mm)κLLinewidth (nm)
    A330.5051.70.493
    B331.0903.60.174
    C122.8603.40.069
    Table 1. Experiment Parameters
    Xiangjie Zhao, Yong Zhang, Cheng Zeng, Danping Li, Ge Gao, Qinzhong Huang, Yi Wang, Jinzhong Yu, Jinsong Xia. Large-mode-volume transverse-electric-polarized distributed feedback cavity on silicon-on-insulator[J]. Chinese Optics Letters, 2015, 13(10): 101301
    Download Citation