The modal property and light propagation in tapered silicon ridge waveguides with different heights are investigated for a on insulator (SOI) platform 500 nm (Si) thickness. Mode conversion between the transverse magnetic (TM) fundamental higher-order electric (TE) modes occurs when is propagated waveguide taper. Such due to mode hybridization resulting from vertical asymmetry of cross-section ...

Anomalies persist in the foundations of ridge regression as set forth in Hoerl and Kennard (1970) and subsequently. Conventional ridge estimators and their properties do not follow on constraining lengths of solution vectors using LaGrange’s method, as claimed. Estimators so constrained have singular distributions; the proposed solutions are not necessarily minimizing; and heretofore undiscover...

This paper introduces a function of correlation between two hydrophones, basing on the Kuperman-Ingenito ocean ambient noise model. There is a similarity in form between the cross correlation function and the transfer function in ocean waveguide from a point source to a receiver. Thus, the noise cross correlation function between two hydrophones in vertical location can extract actual transfer ...

A high-sensitivity Mach-Zehnder interferometer (MZI) biochemical sensing platform based on Silicon-in-insulator (SOI) rib waveguide with large cross section is proposed in this paper. Based on the analyses of the evanescent field intensity, the mode polarization and cross section dimensions of the SOI rib waveguide are optimized through finite difference method (FDM) simulation. To realize high...

Birefringence phase-matched third-harmonic generation at 1594 nm is performed for the first time in a KTiOPO 4 single crystal micrometric ridge waveguide. The energy conversion efficiency reaches 3.4% pump as low 2 µJ over pulse duration of 15 ps repetition rate 10 Hz. Strong agreements between theory and experiments both phase-matching obtained, which let us envision future triple photon quant...