中国物理B ›› 2016, Vol. 25 ›› Issue (11): 114211-114211.doi: 10.1088/1674-1056/25/11/114211

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Ultra broadband flat dispersion tailoring on reversed-rib chalcogenide glass waveguide

Yanfen Zhai(翟彦芬), Renduo Qi(齐人铎), Chenzhi Yuan(袁晨智), Wei Zhang(张巍), Yidong Huang(黄翊东)   

  1. Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2016-02-17 修回日期:2016-05-12 出版日期:2016-11-05 发布日期:2016-11-05
  • 通讯作者: Wei Zhang E-mail:zwei@tsinghua.edu.cn
  • 基金资助:
    Project supported by the National Basic Research Program of China (Grant Nos. 2013CB328700 and 2011CBA00303) and the National Natural Science Foundation of China (Grant Nos. 61575102 and 61321004).

Ultra broadband flat dispersion tailoring on reversed-rib chalcogenide glass waveguide

Yanfen Zhai(翟彦芬), Renduo Qi(齐人铎), Chenzhi Yuan(袁晨智), Wei Zhang(张巍), Yidong Huang(黄翊东)   

  1. Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China
  • Received:2016-02-17 Revised:2016-05-12 Online:2016-11-05 Published:2016-11-05
  • Contact: Wei Zhang E-mail:zwei@tsinghua.edu.cn
  • Supported by:
    Project supported by the National Basic Research Program of China (Grant Nos. 2013CB328700 and 2011CBA00303) and the National Natural Science Foundation of China (Grant Nos. 61575102 and 61321004).

摘要: In this paper, we introduce a horizontal slot in the reversed-rib chalcogenide glass waveguide to tailor its dispersion characteristics. The waveguide exhibits a flat and low dispersion over a wavelength range of 1080 nm, in which the dispersion fluctuates between -10.6 ps·nm-1·km-1 and+11.14 ps·nm-1·km-1. The dispersion tailoring effect is due to the mode field transfer from the reversed-rib waveguide to the slot with the increase of wavelength, which results in the extension of the low dispersion band. Moreover, the nonlinear coefficient and the phase-matching condition of the four-wave mixing process in this waveguide are studied, showing that the waveguide has great potential in nonlinear optical applications over a wide wavelength range.

关键词: chalcogenides films, nonlinear optics, waveguides, dispersion

Abstract: In this paper, we introduce a horizontal slot in the reversed-rib chalcogenide glass waveguide to tailor its dispersion characteristics. The waveguide exhibits a flat and low dispersion over a wavelength range of 1080 nm, in which the dispersion fluctuates between -10.6 ps·nm-1·km-1 and+11.14 ps·nm-1·km-1. The dispersion tailoring effect is due to the mode field transfer from the reversed-rib waveguide to the slot with the increase of wavelength, which results in the extension of the low dispersion band. Moreover, the nonlinear coefficient and the phase-matching condition of the four-wave mixing process in this waveguide are studied, showing that the waveguide has great potential in nonlinear optical applications over a wide wavelength range.

Key words: chalcogenides films, nonlinear optics, waveguides, dispersion

中图分类号:  (Nonlinear waveguides)

  • 42.65.Wi
42.65.-k (Nonlinear optics) 42.79.-e (Optical elements, devices, and systems) 77.84.Bw (Elements, oxides, nitrides, borides, carbides, chalcogenides, etc.)