中国科学技术大学精密机械与精密仪器系光电信息技术实验室, 安徽 合肥 230027
用有限元计算方法仿真了MgF2楔形腔中的色散情况,并研究半径、楔角大小、楔角位置三个参数对整个腔在通讯波段的色散影响。通过从蓝失谐到红失谐的调谐过程,利用得到的色散曲线,根据Lugiato-Lefever方程和热偏移公式仿真孤子的频域和时域图。并且研究了扫描速度、品质因子、泵浦功率等对孤子产生的影响。在结合以往实验和理论基础的情况下,探讨了利用MgF2晶体腔产生孤子的一些重要参数。数据结果对制备低反常色散MgF2楔形腔及在此腔中产生孤子梳具有指导意义。
光学器件 回音壁模式 光频梳 楔形腔 腔孤子
Author Affiliations
Abstract
1 Department of Precision Machinery and Precision Instrumentation, University of Science and Technology of China, Hefei 230027, China
2 School of Instrument Science and Technology, Hefei University of Technology, Hefei 230009, China
3 School of Electromechanical Engineering, Guangdong University of Technology, Guangzhou 510643, China
4 Science and Technology on Optical Radiation Laboratory, Beijing 100039, China
In this Letter, we demonstrate high-quality (Q), millimeter-size, and V-shaped calcium fluoride crystalline resonators for modal modification. To manufacture such resonators, we develop a home-made machining system and explore a detailed process. With a dedicated polished container, three special polishing steps, including grinding, smoothing, and polishing, are employed to achieve the required surface smoothness, which is characterized by less than 3 nm. An ultra-high-Q factor exceeding 108 is obtained by a coupled tapered fiber. In addition, a customized packaged structure for our disk resonator is achieved. The Q maintenance and stable spectrum are realized by sealing the coupling system in a hard disk. The simple, stable, portable, controlled, and integratable device would provide great potential in optical filters, sensors, nonlinear optics, cavity quantum electrodynamics, and especially some applications that require large resonators such as gyroscopes.
140.3410 Laser resonators 350.3950 Micro-optics 210.4590 Optical disks 220.5450 Polishing Chinese Optics Letters
2019, 17(11): 111401
