Special Issue on 70th anniversary of National University of Defense Technology
Single-pixel wavefront sensing via vectorial polarization modulation
Wunan Li, Yu Cao, Yu Ning, Fengjie Xi, Quan Sun, and Xiaojun Xu
Chinese Optics Letters
  • Sep. 22, 2023
  • Vol. 21, Issue 9 (2023)
Special Issue on 70th anniversary of National University of Defense Technology
Comparison of optical properties of bioaerosols composed of microbial spores and hyphae [Invited]
Xinyu Wang, Yihua Hu, Xing Yang, Youlin Gu, Haihao He, Wanying Ding, and Peng Wang
Chinese Optics Letters
  • Sep. 22, 2023
  • Vol. 21, Issue 9 (2023)
Special Issue on 70th anniversary of National University of Defense Technology
Water track laser Doppler velocimeter [Invited]
Rong Huang, Qi Wang, Zhiyi Xiang, Xiaoming Nie, Jian Zhou, and Hui Luo
Chinese Optics Letters
  • Sep. 22, 2023
  • Vol. 21, Issue 9 (2023)
Special Issue on 70th anniversary of National University of Defense Technology
Adaptive microwave photonic angle-of-arrival estimation based on BiGRU-CNN [Invited]
Yin Li, Qiaosong Cai, Jie Yang, Tong Zhou, Yuanxi Peng, and Tian Jiang
Chinese Optics Letters
  • Sep. 22, 2023
  • Vol. 21, Issue 9 (2023)
Atomic and Molecular Optics
Recent advances in optical fiber high-temperature sensors and encapsulation technique [Invited]
Wenjie Xu, Qiang Bian, Jianqiao Liang, Zhencheng Wang, Yang Yu, and Zhou Meng
Chinese Optics Letters
  • Sep. 22, 2023
  • Vol. 21, Issue 9 (2023)
On the Cover
Microstructure optical fiber (MOF) offers a wide range of applications in short-distance communication systems, fiber lasers, supercontinuum generation, sensors, modulators and wavelength converters, as well as in various scientific fields such as optics, electronics, medicine, biology and environmental science. Conventional step-index fibers suffer from the constraints of the monotonic structure construction and material properties, which limits the further optimization of their optical performance in terms of work bandwidth, dispersion and loss. For practical purposes such as high-capacity transmission and high-power lasers, they face the challenges such as maintaining single-mode operation with a small core size, ensuring a low cutoff wavelength and matching the thermal characteristics of the core and cladding materials. In contrast, MOF, such as the well-known photonic crystal fiber (PCF), exhibit a strong dependence of the effective refractive index of the cladding on the structural parameters and wavelength, which enables a broad tunability of the effective refractive index contrast (0 ~ 90%) between the core and cladding modes. Therefore, by adjusting the structural parameters of the fiber, such as the size, shape and lattice constant of the air holes, the fundamental mode propagation constant will be effectively controlled, easily achieving single-mode transmission with zero cutoff wavelength, high numerical aperture, ultra-flat dispersion, low loss or high nonlinearity coefficient, among other desirable fiber features. These features endow PCF with an unparalleled advantage over traditional fiber.
Chinese Optics Letters
  • Sep. 05, 2023
  • Vol. 21, Issue 6 (2023-)
Special Issue
Chinese Optics Letters
  • Aug. 17, 2023
  • Vol. , Issue (2023-)
News
On the occasion of the 80th birthdays of both Professors Ling-An Wu and Kai-Ge Wang, we are thrilled to announce the Call for Papers for a special issue on Quantum Imaging in the journal of COL which will be published in June 2024.
Chinese Optics Letters
  • Aug. 11, 2023
  • Vol. , Issue (2023)