Abstract: Integrated photonic devices, packages, and systems are disclosed. An example photonic device includes a laser device with a laser cavity having three sections. The three sections include, respectively, an active region, a waveguide, and a grating arranged along a longitudinal axis of the cavity. Materials of these three sections of the laser device are selected so that a TOC of the grating is between a TOC of the active region and a TOC of the waveguide.

Abstract: Embodiments herein relate to an optical system coupled with or including a control logic. The control logic may be configured to identify, based on feedback provided by a photodiode (PD) of an optical receiver, that an amplitude of an optical marker signal output by an interferometer of the optical receiver is above a threshold value. The control logic may further be configured to adjust, based on the identification, a thermo-optic phase tuner of the interferometer, wherein adjustment of the thermo-optic phase tuner results in a change to the amplitude of the optical marker signal. Other embodiments may be described and/or claimed.

Abstract: Various embodiments described herein may relate to apparatuses, systems, techniques, and/or processes that are directed to tunable lasers. Specifically, embodiments herein may relate to chips that include both a tunable laser portion as well as a WLL portion on a same silicon substrate. Other embodiments may be described and/or claimed.

Abstract: The present disclosure discloses a color matching evaluation method combining similarity measure and visual perception. The method includes: firstly, constructing an image database with rich color information; extracting main colors from an acquired image using an improved clustering method for color matching; generating a corresponding palette using an intelligent color matching recommendation system, and evaluating a palette similarity using a minimum color difference model; then, recoloring the corresponding image using the generated palette through an image recoloring technology to obtain a recolored image, and calculating a structural similarity between the source image and the recolored image; performing feature level adaptive weighted fusion on the palette similarity and the structural similarity, and performing an eye movement tracking experiment on the source image and the recolored image to obtain visual perception data of the images.