Lasing in $\mathrm{Si}_3\mathrm{N}_4$-organic hybrid (SiNOH) waveguides

TL;DR

This paper introduces a new class of visible-wavelength, chip-integrated lasers based on Si3N4-organic hybrid waveguides, suitable for biophotonics, using low-cost fabrication and simple optical pumping.

Contribution

It demonstrates the fabrication and operation of Si3N4-organic hybrid lasers emitting at 600 nm, with novel geometries and easy top-side optical pumping for biophotonic applications.

Findings

Operates at 600 nm wavelength

Compatible with low-cost fabrication techniques

Can be optically pumped from the top without precise alignment

Abstract

Lasers that operate in the visible wavelength range and can be easily integrated on a chip together with photonic integrated circuits are of particular interest for biophotonic applications. We present a new class of laser sources that emit at 600 nm wavelength and can be efficiently integrated on the $\mathrm{Si}_3\mathrm{N}_4$ platform using low-cost fabrication techniques. The $\mathrm{Si}_3\mathrm{N}_4$-organic hybrid lasers are optically pumped from top without the need of a precise alignment. We investigate different laser geometries based on spiral shaped ring resonators and distributed feedback resonators. We discuss the laser properties with a focus on their application in the field of bioscience.