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Optical signal processing chip based on arrayed waveguide grating

An arrayed waveguide grating and processing chip technology, applied in the field of optical communication, can solve the problems of limiting performance improvement, difficult control of device size and stability, etc., to achieve the effect of reducing volume

Inactive Publication Date: 2021-10-29
HUAZHONG UNIV OF SCI & TECH
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Problems solved by technology

[0009] At present, there is a single-channel waveshaper from the foreign Finisar company that is commercially available. It mainly uses discrete diffraction gratings and 2-dimensional LCoS arrays to realize different frequency light wavelength demultiplexing processing. Due to the use of discrete optical devices, the size and stability of the devices are not easy to control, and limit its performance

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  • Optical signal processing chip based on arrayed waveguide grating
  • Optical signal processing chip based on arrayed waveguide grating
  • Optical signal processing chip based on arrayed waveguide grating

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Embodiment Construction

[0026] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings and examples.

[0027] Such as figure 1 As shown, the present invention provides an optical signal processing chip based on an arrayed waveguide grating (AWG). The optical signal processing chip is based on a reflective structure and consists of an AWG, a phase and amplitude control array, and a reflector connection.

[0028] In this example, arrayed waveguide gratings, phase and amplitude control arrays, and reflectors are monolithically integrated on z-cut thin-film lithium niobate materials to achieve phase and amplitude control of different frequency components of incident light waves. Using thin-film lithium niobate material as the waveguide layer can achieve very low waveguide loss (<0.1dB / cm), thus reducing the loss of the entire optical signal processing chip. Compared with the traditional silicon-based or indium-phosphorus-based optical phased array, the ...

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Abstract

The invention discloses an optical signal processing chip based on an arrayed waveguide grating (AWG). The optical signal processing chip comprises the AWG, a phase and amplitude control array and a reflector array, wherein the AWG projects different frequency components of an incident light signal to different positions in space, then performs amplitude and phase control on each frequency component, then returns each frequency component to the phase and amplitude control array through the total reflector, returns along the original path, finally returns to an input waveguide of the AWG, and is separated from the incident signal through the circulator. According to the technical scheme of the invention, by controlling the phase shift array and the amplitude modulation array, the incident light signal can be processed in the frequency domain, and the functions of an optical filter and a waveform generator are realized.

Description

technical field [0001] The invention belongs to the technical field of optical communication, in particular to an optical signal processing chip based on an arrayed waveguide grating (AWG) Background technique [0002] With the continuous development of optical communication technology, tunable all-optical network is becoming a research hotspot. The spatial light modulator that can realize beam modulation has become the core optoelectronic device in the all-optical network system, and its performance directly affects the comprehensive index of the system. In recent years, the research and application of spatial light modulators have been developing rapidly. It has the advantages of high precision, low voltage drive, and high response sensitivity. Due to its good ability to modulate light beams in real time in space, spatial light modulators have become an , Optical computing, photoelectric integrated system and other key devices have important applications in many directions...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/12
CPCG02B6/12009G02B2006/12133
Inventor 国伟华吴云帆陆巧银
Owner HUAZHONG UNIV OF SCI & TECH
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