High-precision on-chip optical beam forming network

Abstract

The invention discloses a wavelength division multiplexing-based high-precision on-chip optical beam forming network, which is applied to a microwave photon radar and is formed by sequentially connecting a beam splitter, a first array waveguide grating, a delay line array, a second array waveguide grating and a coupling grating, the array waveguide grating is composed of a waveguide array, an input slab waveguide and an output slab waveguide, wherein a constant length difference exists between adjacent waveguides, and the input slab waveguide and the output slab waveguide are connected to the two ends of the waveguide array. The delay line array is formed by connecting a delay line silicon waveguide linear part and a delay line silicon waveguide bent part. In order to further improve the integration level of an on-chip optical beam forming network and the performance of a microwave photon radar, the invention provides a high-precision multi-wavelength on-chip optical beam forming network based on a wavelength division multiplexing technology so as to realize multi-beam and wide-angle range scanning of the microwave photon radar.

Description

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AI Technical Summary

Benefits of technology

The technical effect of this patented method improves how an integrated circuit (IC) chip can communicate with other components like sensors or antennas by transmitting light signals through different waveguides that carry data wirelessly at specific frequencies called microwaves. This allows for precise detection over longer distances without relying solely on radio waves from satellites.

Problems solved by technology

The present patented method described in this patents allows for faster data communication over longer distances without sacrificing resolution or quality due to limitations caused by electronic devices like transistors that are becoming increasingly important nowadays. However, current methods require expensive electronics equipment (Electric Beamformer) at both ends of an interferometer system, making it difficult to integrate into existing technologies. This limits their use beyond specific areas where they may benefit from these new techniques.

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