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1. 发明申请

WO2018089075A1 ALL-MICROWAVE STABILIZATION OF MICRORESONATOR-BASED OPTICAL FREQUENCY COMBS 审中-公开
标题翻译：基于微波激光器的光学频率合成器的全微波稳定化
公开(公告)号：WO2018089075A1
公开(公告)日：2018-05-17
申请号：PCT/US2017/047413
申请日：2017-08-17
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： WONG, Chee, Wei , HUANG, Shu-Wei , VINOD, Abhinav, Kumar
IPC分类号： G02F1/35
摘要： Systems and methods in accordance with embodiments of the invention implement all- microwave stabilized microresonator-based optical frequency comb. In one embodiment, an all-microwave stabilized microresonator-based optical frequency comb includes: an optical pump configured to generate pulses of light; a microresonator including an input configured to receive pulses generated by an optical pump and an output configured to generate an optical frequency comb signal characterized by frep and ξ; where frep describes spacing of frequency components in the optical frequency comb; where the optical frequency comb includes a primary comb and a plurality of subcombs and ξ is a frequency offset between subcombs; and two phase locked loops that phase lock frep and ξ to low noise microwave oscillators by modulating output power and pump frequency of the optical pump.
摘要翻译：根据本发明实施例的系统和方法实施全微波稳定的基于微谐振器的光学频率梳。在一个实施例中，全微波稳定的基于微谐振器的光学频率梳包括：配置成产生光脉冲的光泵; 微谐振器，包括被配置为接收由光泵产生的脉冲的输入和被配置为产生以frep和ξ为特征的光学频率梳信号的输出; 其中frep描述了光频梳中频率分量的间隔; 其中光频梳包括主梳和多个子团，ξ是子团之间的频率偏移; 以及两个锁相环，通过调制光泵的输出功率和泵浦频率，将frep和ξ锁相到低噪声微波振荡器。

2. 发明申请

WO2017214512A1 GRAPHENE-BASED SEMICONDUCTOR CHIP FOR TUNABLE THZ PLASMON GENERATION 审中-公开
标题翻译：基于石墨烯的半导体芯片用于可调谐THZ等离子体生成
公开(公告)号：WO2017214512A1
公开(公告)日：2017-12-14
申请号：PCT/US2017/036765
申请日：2017-06-09
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： WONG, Chee, Wei , YAO, Baicheng , LIU, Yuan , DUAN, Xiangfeng
IPC分类号： G01J3/12 , G02B6/42 , G02B6/12 , G02B6/122 , G02F1/01 , H01P7/00
CPC分类号： G02F1/025 , G02B6/122 , G02B6/1226 , G02B6/42 , G02F1/011
摘要： Methods and apparatus for providing all-optically generated, on-chip propagated and high-efficiency tunable plasmons are described. The plasmon generating apparatus includes a graphene based silicon nitride waveguide (GSiNW) utilizing 'C+L' band light sources and detectors that take advantage of the surface 2nd nonlinearity on graphene. The optical generation is accomplished via one or more optical communication lasers through the difference-frequency generation process. The THz frequency and intensity is tunable via an external gate voltage. Using such a device the optical to THz conversion may be made at least an order of magnitude more efficient than prior THz sources, and can be used to make chip-scale room-temperature THz sources, switches, modulators and detectors based on graphene.
摘要翻译：描述了用于提供全光学产生的片上传播和高效可调谐等离子体的方法和设备。等离子体激元产生装置包括利用“C + L”带光源的石墨烯基氮化硅波导（GSiNW）和利用石墨烯上的表面第二非线性的检测器。通过差频生成过程，通过一个或多个光通信激光器来完成光生成。太赫兹频率和强度可通过外部栅极电压进行调整。使用这样的设备，光学到THz转换可以比现有的THz源至少高效一个数量级，并且可以用于制造基于石墨烯的芯片级室温THz源，开关，调制器和检测器。 / p>

3. 发明申请

WO2019046645A1 GRAPHENE MICROCAVITY FREQUENCY COMBS AND RELATED METHODS OF MANUFACTURING 审中-公开
公开(公告)号：WO2019046645A1
公开(公告)日：2019-03-07
申请号：PCT/US2018/048954
申请日：2018-08-30
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： YAO, Baicheng , HUANG, Shu-Wei , WONG, Chee, Wei , VINOD, Abhinav, Kumar
IPC分类号： G02B6/293 , H03H9/24 , H01P1/205 , H01P1/213 , H01P7/06
CPC分类号： H03H9/24 , G02B6/29341 , G02F2203/15 , G02F2203/56
摘要： Based on graphene heterostructure in chip-scale silicon nitride microresonators, optoelectronic control and modulation in frequency combs via group velocity dispersion modulation can be demonstrated. By tuning graphene Fermi level from 0.50 eV to 0.65 eV via electric-field gating, deterministic in-cavity group velocity dispersion control from anomalous (-62 fs 2 /mm) to normal (+9 fs 2 /mm) can be achieved with Q factor remaining high at 10 6 . Consequently, both the primary comb lines and the full comb spectra can be controllable dynamically with the on/off switching of the Cherenkov radiation, the tuning of the primary comb lines from 2.3 THz to 7.2 THz, and the comb span control from zero comb lines to ~781 phase-locked comb lines, directly via the DC voltage.

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