Active glass waveguide coupling microannular resonant cavity and active controller thereof

Abstract

A micro-ring resonant cavity of glass active waveguide couple is prepared by interlinking passive straight waveguide module with active ring waveguide module. The dynamic control device of it is featured as connecting a pumping laser to an input port of wavelength division complexer, using another port as signal light input port and connecting output end of the waveguide division complexer to straight waveguide.

Description

technical field [0001] The invention relates to integrated optics, in particular to a glass active waveguide coupling micro-ring resonant cavity and a dynamic control device thereof. technical background [0002] In recent years, Waveguide-Coupled Micro-Ring Resonator (WCMRR) has attracted much attention of researchers because of its broad application prospects and compact structure in optical communication systems. It can be used to build a variety of integrated photonic circuits with different functions. For example, by using its good filtering performance, it can be used to form high-performance filter devices such as dense wavelength division multiplexing filters, optical comb filters, and optical add-drop multiplexers. ; Utilizing its critical coupling (Critical Coupling) characteristics, a number of dynamically tunable integrated photonic devices can be formed, such as optical switches, modulators, dynamically configurable optical add-drop multiplexers (ROADM) and dyna...

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Problems solved by technology

[0003] (1) The inherent high bending loss and scattering loss of the ring waveguide 2 greatly limit the size of the device, that is, the radius of curvature R of the waveguide is large, which makes the free spectral range of the device small and cannot cover the entire C-band;

[0004] (2) The insertion loss of the device is large;

[0005] (3) Although critical coupling can be achieved by controlling the coupling coefficient between waveguides 1 and 2 to achieve dynamic tunable performance of the device, the technical means used are very complicated, which is not conducive to the practical application of the device

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