High-Order-Mode supercontinuum generation based on shortcut to adiabaticity coupling

Guan Hong LI, Tzu Der Hsieh, Chi Hung Wu, Min Hsiung Shih, Hao Chung Kuo, Shuo Yen Tseng, Yi Jen Chiu, Chao Kuei Lee

Research output: Contribution to journalArticlepeer-review

Abstract

Broadband optical sources have been attracting widespread attention because of their remarkable potential for application to quantum technology. One of the major obstacles to realization of such applications is the weak anomalous group velocity dispersion (GVD) of these sources and low coupling efficiency of high order mode for generating supercontinuum generation (SCG). In this work, using a shortcut to adiabaticity (STA) approach, high order modes can be excited selectively with coupling efficiency of more than 80 % to enable octave spanning supercontinuum generation within a waveguide composed of tantalum pentoxide (Ta2O5), which is a high nonlinear refractive index material. The SCG over the range from 650 nm to 1300 nm, which corresponds to one octave, was demonstrated and analyzed when the material was pumped using a femtosecond laser with a center wavelength of 1030 nm.

Original languageEnglish
Article number111409
JournalOptics and Laser Technology
Volume179
DOIs
Publication statusPublished - 2024 Dec

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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