Spectral Shaping with Integrated Self-Coupled Sagnac Loop Reflectors

具有更高RSOA与PIC对准容差的外腔637-nm激光器及带单输出波导的滤波型萨格纳克环反射器

External Cavity 637-nm Laser with Increased RSOA-to-PIC Alignment Tolerance and a Filtered Sagnac-Loop Reflector with Single Output Waveguide

面向量子技术应用，设计了基于PIC的637-nm外腔激光器，采用MMEC提升RSOA对准容差，搭配游标配置环形谐振器滤波的萨格纳克环实现单输出发射，初步验证出激光发射特性。

薄膜铌酸锂上的低损耗、制造容差且高度可调的Sagnac环路反射器与Fabry-Pérot腔

Low-loss, fabrication-tolerant, and highly-tunable Sagnac loop reflectors and Fabry-Pérot cavities on thin-film lithium niobate

在薄膜铌酸锂上提出低损耗MZI，利用可调Sagnac环路反射器构建Fabry-Pérot腔实现2×10^6品质因数，并通过热隔离沟槽将热光相移器功耗降低超10倍，助力复杂光子集成电路扩展。

Silicon nanophotonic chips featuring Sagnac loop reflectors as a basis for advanced optical spectral filters

We present and investigate theoretically photonic integrated filters based on 2 Sagnac coupled loop reflectors (SLRs) that are arranged in a self-coupled optical waveguide. We recently presented photonic integrated filters based on coupled and cascaded SLRs. In this paper, we advance this field by investigating a unique approach of employing coupled SLRs formed by self-coupled waveguides. This allows us to achieve high performance filter functions including Fano-like resonances and wavelength interleaving with a simpler design and a higher fabrication tolerance by tailoring coherent mode inter…

基于级联Sagnac环谐振器的硅光子滤波器

Silicon photonic filters based on cascaded Sagnac loop resonators

我们展示了先进的集成光子滤波器在绝缘体上硅（SOI）纳米线实现级联Sagnac环反射器（CLR）谐振器。我们调查这些驻波（SW）谐振器中的模式分裂，并证明其用于工程片上光子滤波器的光谱分布。通过改变Sagnac环形反射器（SLR）的反射率和沿连接波导的相移，我们定制CSL谐振器中的模式分裂，以实现各种各样的滤波器形状，用于各种应用，包括增强光捕获，平顶滤波，Q因子增强和信号整形。我们提出的理论设计和比较的CSLR谐振器与三个，四个，和八个SLR在SOI制造。我们实现了多功能的过滤器的形状在测量的透射光谱，通过不同的模式分裂，同意与理论。这项工作证实了使用CSLR谐振器作为集成的多功能SW滤波器的灵活的频谱工程的有效性。

利用频率相关外部反射器调控太赫兹谐波频率梳

Shaping terahertz harmonic frequency combs with frequency dependent external reflectors

提出一种通过将量子级联激光器（QCL）与频率相关反射器结合调控太赫兹谐波频率梳的方法，可同时控制频率偏移和梳齿间距，被动生成超短皮秒脉冲，还能从自由运行未锁定态触发并增强相干性。

Spectral engineering of integrated photonic filters using mode splitting in silicon nanowire integrated standing-wave resonators

Mode splitting induced by coherent optical mode interference in coupled resonant cavities is a key phenomenon in photonic resonators that can lead to powerful and versatile filtering functions, in close analogy to electromagnetically-induced-transparency, Autler-Townes splitting, Fano resonances, and dark states. It can not only break the dependence between quality factor, free spectral range, and physical cavity length, but can also lead to group delay response and mode interactions that are useful for enhancing light-material interaction and dispersion engineering in nonlinear optics. In thi…

集成法布里-珀罗腔作为提高微环谐振器性能的机制

Integrated Fabry-Perot cavities as a mechanism for enhancing micro-ring resonator performance

我们提出并实验证明，通过将集成微环谐振器（MRR）嵌入由级联Sagnac环反射器（SLR）形成的集成法布里-珀罗（FP）腔中，可以提高其滤波质量（Q）因子。通过利用FP腔内的相干干涉对MRR的透射谱进行整形，可以显著提高Q因子和消光比（ER）。对器件进行了理论分析，并在绝缘体上硅（SOI）晶片上进行了实际制作。实验结果表明，高达11倍的改善Q因子，连同8 dB的ER增加，可以通过我们提出的方法实现。不同结构参数对器件性能的影响也进行了研究，并通过不同结构参数的器件的测量光谱进行了验证。

氮化硅光子集成电路中的百万级Q值双偏振微法布里-珀罗谐振器

Million-Q Dual-Polarization Micro-Fabry-Perot Resonators in Silicon Nitride Photonic Integrated Circuits

该研究提出一种采用偏振不敏感Sagnac环反射器和多模波导的氮化硅双偏振微法布里-珀罗谐振器，实现TM0和TE0模式创纪录的高Q值（2.38×10^6和3.48×10^5）及高效热调谐，为紧凑型高性能双偏振谐振器树立新基准。