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- W3099315903 abstract "Herein a circular defect in a 2D photonic crystal (CirD) laser for wavelength division multiplexing (WDM) optical communications is theoretically analyzed. By coupling CirD lasers to a waveguide, a huge communication capacity can be expected. For example, if high‐speed, 50 Gbps laser operations are successfully achieved, WDM devices with 20 CirD lasers could achieve a communication capacity of 1 Tbps. Based on finite‐difference time‐domain (FDTD) simulation results, in this study, both current‐output and high‐frequency characteristics are investigated by solving 2D rate equations, revealing that an excessively high‐quality factor in laser cavities reduces the relaxation‐oscillation frequency. When the photon lifetime is 2 ps, which corresponds to a quality factor of ≈3000, a small threshold current of 5 μA and a high relaxation‐oscillation frequency of 40 GHz can be simultaneously obtained. These results suggest the potential of developing a WDM device using CirD lasers." @default.
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- W3099315903 date "2020-11-25" @default.
- W3099315903 modified "2023-10-14" @default.
- W3099315903 title "Theoretical Analysis on Operation Speed of the Circular Defect in 2D Photonic Crystal (CirD) Laser" @default.
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- W3099315903 doi "https://doi.org/10.1002/pssa.202000411" @default.
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