Waveguide type non-reciprocal beam splitter member

Abstract

Wherein, serial connecting an input waveguide, a waveguide contained magneto-optic material with common 1X2 beam splitter, two continual waveguides, a phase modification zone and 2X2 multimode interference waveguide device to be used as 1X2 splitter on forward transmission and 1X1 or 2X1 beam-combining device on backward transmission; and two output waveguide in turn. This invention can reduce energy loss greatly, has compact structure, high integration and fit to wide application.

Description

technical field [0001] The invention relates to a waveguide type non-reciprocal optical beam splitting device. Background technique [0002] Integrated optical waveguide devices have broad application prospects in the fields of optical communication, integrated photonics technology, and on-chip photonic systems. To improve the integration of the system, it is inevitable to use waveguide-type photonic devices. At the same time, non-reciprocal photonic devices are often used in integrated optical optical circuits and photonic devices, such as optical isolation devices, optical ring devices, and optical gyroscopes. Waveguide optical beam splitter is a photonic device commonly used in optical communication systems. It is an indispensable device for evenly distributing signals from trunk optical cables to each user end system. It is often used as an optical power distribution function, and can also be used as an optical ring. protection etc. But we know that for the traditional...

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Problems solved by technology

But we know that for the traditional dielectric waveguide type and fiber fused cone type 1×2 optical beam splitter, when used in the forward direction, it can achieve the purpose of equal beam splitting from one channel to two channels, and when used in the reverse direction, no matter from which end Input, at most only half of the energy returns from the original path; when the two ends are input at the same time, it may not be possible to achieve the purpose of complete beam convergence

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