A Tunable Narrow Linewidth Laser Based on Organic-Inorganic Hybrid Waveguide

Abstract

The application discloses a tunable narrow-linewidth laser based on an organic-inorganic hybrid waveguide, including a planar optical waveguide and a semiconductor optical amplifier. The planar optical waveguide includes a substrate layer, a lower cladding layer, a waveguide core layer, an upper cladding layer, and an electrode layer. The waveguide core layer is divided into an inorganic waveguide core layer area and an organic waveguide core layer area, and the inorganic waveguide area includes a ring reflector, a first biconical mode converter, a straight waveguide core layer, a second biconical mode converter and parallel channels A single microring filter, a semiconductor optical amplifier is bonded on the straight waveguide core layer, the organic waveguide core layer area includes an inorganic-organic tapered mode converter, a thermo-optic switch array and a waveguide grating filter, and the other end of the waveguide grating filter is The output port, ring reflector, parallel channel single microring filter, thermo-optic switch array and waveguide grating filter are all equipped with heating electrodes, which not only has the advantage of narrow line width, but also has a wide tuning range, and the output laser has high Side mode suppression ratio.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lasers, in particular to a tunable narrow-linewidth laser based on an organic-inorganic hybrid waveguide. Background technique [0002] The core of silicon photonics technology is "replacing electricity with light" to transmit data. It can integrate active and passive devices such as light sources, modulators, waveguides, and detectors on the same silicon substrate, which has high integration and great potential for cost reduction. , excellent waveguide transmission performance and other advantages, it has important applications in the fields of optical communications, data centers, national defense, smart cars and drones. However, silicon is an indirect bandgap material, and the lack of high-performance light sources severely restricts the development of silicon photonics technology. [0003] At present, there are three types of technologies for realizing silicon-based monolithic integrate...

AI Technical Summary

Problems solved by technology

In summary, silicon-based hybrid integrated lasers based on microring filters and waveguide grating filters, one has a large tuning range, but the line width is not narrow enough, and the other is that the line width can be narrow enough, but the tuning range is not wide enough , that is to say, none of them can combine the advantages of narrow line width and wide tuning range

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