Multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip

Abstract

The invention discloses a multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip. An input multimode waveguide is connected with input ends of a plurality of single-mode waveguides through a mode demultiplexer; output ends of the plurality of single-mode waveguides are connected with an output multimode waveguide through a mode multiplexer; each single-mode waveguide is provided with a wavelength division structure; the wavelength division structures are connected with a channel uploading waveguide and a channel downloading waveguide respectively; a micro-heating electrode is arranged above the wavelength division structure of each single-mode waveguide; a thermal tuning micro-ring resonator is formed by each micro-heating electrode and the corresponding wavelength division structure. According to the multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip, drop-and-insert multiplexing of any wavelength in a C waveband under each mode channel is realized; flexible uploading and downloading problems of a channel are solved; the loss caused by channels which do not need to be downloaded is relatively small; the multi-wavelength-multimodal reconfigurable drop-and-insert multiplexing chip has the advantages of relatively good working performance, simple structure and compact layout.

Description

technical field

[0001] The invention belongs to the field of integrated optoelectronic devices, in particular to a multi-wavelength-multi-mode reconfigurable add-drop multiplexing chip. Background technique

[0002] In order to increase the communication rate of on-chip integrated optical communication, a variety of advanced multiplexing technologies have been developed and used, including wavelength division multiplexing, mode multiplexing, polarization multiplexing, etc. Among them, wavelength division multiplexing technology is currently the most widely used and most mature multiplexing technology, and it is widely used in optical fiber communication systems. Transmit multiple wavelength signals in the medium to realize the expansion of channel capacity. The mode multiplexing technology uses multiple mode channels as signal carriers, which can simultaneously transmit multiple signals based on different modes in a multimode waveguide. Combining multi-wavelength and multi...

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