Nonvolatile band switching using transparent phase-change materials on Bragg structures
Nonvolatile band switching using transparent phase-change materials on Bragg structures
复制标题
在布拉格结构上使用透明相变材料进行非易失性能带切换
DOI：
10.1117/12.2647868
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发表时间：
2023
期刊：
影响因子：
--
通讯作者：
Youngblood, Nathan
中科院分区：
文献类型：
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作者：
Nobile, Nicholas A.;Lian, Chuanyu;Sun, Hongyi;Mills, Brian;Popescu, Cosmin Constantin;Hu, Juejun;Ríos, Carlos;Youngblood, Nathan
光域中的高速调制已经通过克服电能-带宽折衷实现了超过1 Tbps数据传输速度的通信。弱光子相互作用引起波分复用（WDM），其通过总线波导使许多光学设备的能力倍增。然而，许多集成光子滤波器和解调器依赖于应用于大型环形谐振器的连续加热元件来控制其分插功能，这可能限制了这些系统的器件密度和功率效率。布拉格光栅由材料折射率的周期性变化图案形成。当光入射到光栅上时，一部分光被反射，而其余的光通过它。被光栅反射的光的波长由图案的周期决定。通过改变波导宽度，布拉格光栅很容易集成到光子芯片上。Sb等透明相变材料的研究进展
High speed modulation in the optical domain has enabled communications exceeding> 1Tbps data transfer speeds via overcoming the electrical energy-bandwidth tradeoff. The weak photon interactions give rise to wavelength-division multiplexing (WDM) which has multiplied the capable capacities across many optical devices via bus waveguides. However, many integrated photonic filters & demuxes depend on continuous heating elements being applied to large ring resonators to control their add-drop functionality, potentially limiting the device density and power efficiency of these systems.A Bragg grating is formed by a periodic pattern of changes in the refractive index of a material. When light is incident on a grating, some of the light is reflected, while the rest of the light passes through it. The wavelength of light that is reflected by the grating is determined by the period of the pattern. Bragg gratings are easily integrated onto a photonic chip by varying waveguide widths. Novel research of transparent Phase-Change Materials (PCMs) like Sb