Abstract

We present a versatile technique for modal phase-matched second-harmonic generation in a waveguide, which relies on the incident electromagnetic field having transverse wavevector components on the input facet of the waveguide. Such a requirement is satisfied by using an angular-coupling arrangement, which allows for the excitation of modes having an odd spatial distribution that contribute to modal phase-matched second-harmonic generation. The strength of the second-harmonic signal is directly related to the angle at which the incident field is coupled into these modes. This is critical for on-chip nonlinear frequency conversion processes in the areas of optical communication, optical computing, and quantum computing.

© 2020 Optical Society of America

Asymmetric silicon–polymer hybrid waveguide for second-harmonic generation based on modal phase matching

Babak Janjan, Vahid Ahmadi, Mehdi Miri, and Davood Fathi
J. Opt. Soc. Am. B 37(2) 376-381 (2020)

Wideband two-process frequency conversion under stimulated Raman adiabatic passage via a continuum of dark intermediate states

Pragati Aashna and K. Thyagarajan
J. Opt. Soc. Am. B 37(11) 3370-3378 (2020)

Poling and characterization of polymer waveguides for modal dispersion phase-matched second-harmonic generation

M. Jäger, G. I. Stegeman, S. Yilmaz, W. Wirges, W. Brinker, S. Bauer-Gogonea, S. Bauer, M. Ahlheim, M. Stähelin, B. Zysset, F. Lehr, M. Diemeer, and M. C. Flipse
J. Opt. Soc. Am. B 15(2) 781-788 (1998)

Phase-matched second-harmonic generation in coupled nonlinear optical waveguides

Bodong Liu, Huakang Yu, Zhi-yuan Li, and Limin Tong
J. Opt. Soc. Am. B 36(10) 2650-2658 (2019)

Generation of narrowband counterpropagating polarization-entangled photon pairs based on thin-film lithium niobate on insulator

Jia-Chen Duan, Ji-Ning Zhang, Yin-Jun Zhu, Chang-Wei Sun, Yi-Chen Liu, Ping Xu, Zhenda Xie, Yan-Xiao Gong, and Shi-Ning Zhu
J. Opt. Soc. Am. B 37(7) 2139-2145 (2020)