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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Design of a dispersion-engineered broadband Ge11.5As24Se64.5-Si3N4 strip-slot hybrid waveguide with giant and flat dispersion over 350 nm for on-chip photonic networks
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Design of a dispersion-engineered broadband Ge11.5As24Se64.5-Si3N4 strip-slot hybrid waveguide with giant and flat dispersion over 350 nm for on-chip photonic networks

机译：设计宽带宽带GE11.5AS24SE64.5-SI3N4条槽混合波导，具有超过350nm的巨大分散体，用于片上光子网络

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摘要

We propose a new strip-slot hybrid waveguide with extreme large and flat dispersion over broad wavelength range. The strong resonance coupling between the strip and slot modes has been employed to obtain a high dispersion at desired wavelength. The properties of dispersion are analyzed using the finite-difference time-domain method. All numerical simulation results reveal that for the optimized waveguide structure, a maximum dispersion of -1.54x10(6) ps nm(-1) km(-1) and dispersion full width at half-maximum of 2.5 nm at 1.55 mu m are obtained. By cascading the strip-slot hybrid waveguides with varied width and height, a large and flattened dispersion of -9.8x10(5) ps nm(-1) km(-1) covering 350 nm is achieved. Moreover, dispersion compensation of 100 Gbit/s return-to-zero on-off-keying optical-time-division-multiplexing signals after 50-km single mode fiber transmission, and after 7-km hollow-core photonic band-gap fiber transmission are demonstrated, separately. Such a waveguide will find widespread applications in on-chip all-optical signal processing.
机译：我们提出了一种在宽波长范围内具有极端大而平坦的分散的新的条形槽混合波导。已经采用了条带和槽模式之间的强共振耦合以在所需波长处获得高分子。使用有限差分时间域法分析分散的性质。所有数值模拟结果表明，对于优化的波导结构，获得-1.54×10（6）PS nm（-1）km（-1）的最大分散体，并获得了1.55μm的半最大值为2.5nm的半宽度。通过具有不同的宽度和高度，大的和扁平的-9.8x10（5）分散液PS纳米（-1）公里（-1），其覆盖350纳米级联带状槽混合波导实现。此外，在50 km单模光纤传输之后和7公里的空心核心光带间隙光纤传输之后，在50 km单模光纤传输之后和7 km空心核心光带间隙光纤传输之后的三个Gbit / s返回到零断开的光学时分多路复用信号分别证明。这种波导将在片上所有光信号处理中发现广泛应用。

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