Multimode nonlinear optics and its application in supercontinuum source and all-optical signal processing

Yuan-Yao Lin; Guan-Hong Lee; Chao-Kuei Lee; Yi-Jen Chiu

doi:10.1117/12.3027258

2 October 2024 Multimode nonlinear optics and its application in supercontinuum source and all-optical signal processing

Yuan-Yao Lin, Guan-Hong Lee, Chao-Kuei Lee, Yi-Jen Chiu

Author Affiliations +

Proceedings Volume 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII; 1313903 (2024) https://doi.org/10.1117/12.3027258
Event: Optical Engineering + Applications, 2024, San Diego, California, United States

Abstract

We show two of our work on multi-mode nonlinear optical process. In a Ta₂O₅ waveguide of 100 nm in thickness, 8 μm in width and 4.3 mm in length, all-optical signal switching and power limiting operation were demonstrated by nonlinear multi-mode interference while the modes were properly excited by a near infrared pulse at the wavelength of 1064 nm, peak power of 100 W and the pulse duration of 1 ps. In supercontinuum process, a waveguide of 760 nm in thickness and 1.1 μm in width was designed where different guided modes were anomalously dispersive at different wavelengths. Supercontinuum spectrum spanning over an octave with high degree of spectral flatness was excited by a 100-fs laser pulse at the wavelength of 1030 nm. Spectral synthesis with a diffraction gratings mapped the spectral components attributed to specific waveguide modes. It inferred the possibility to engineer supercontinuum generation through waveguide-mode arrangement.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuan-Yao Lin, Guan-Hong Lee, Chao-Kuei Lee, and Yi-Jen Chiu "Multimode nonlinear optics and its application in supercontinuum source and all-optical signal processing", Proc. SPIE 13139, Ultrafast Nonlinear Imaging and Spectroscopy XII, 1313903 (2 October 2024); https://doi.org/10.1117/12.3027258

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