Ultra-high polarization spectrum analysis system and method

Abstract

The invention discloses an ultra-high polarization spectral two-dimensional information fusion analysis system and method. The system is composed of a to-be-measured light input channel, a polarization pumping module, a control and data acquisition module, a data processing module, a wavelength calibration module and at least two polarization measuring channels. The to-be-measured light input channel divides to-be-measured light into at least two beams of polarized to-be-measured light with orthogonal polarization states and the polarized to-be-measured light is inputted into all polarizationmeasuring channels; the polarization pumping module generates a wavelength-variable pump light transmitted to the polarization measuring channels; and the control and data acquisition module acquiresand obtains spectral signals outputted by all polarization measuring channels and controls work of the spectral analysis system. The wavelength of the ultra-high polarization spectral sampling data isgiven by the wavelength calibration module; and the ultra-high polarization spectral sampling data enter the data processing module for follow-up processing to complete ultra-high polarization spectral two-dimensional information fusion analysis of the to-be-measured light.

Description

Technical field [0001] The invention relates to an ultra-high polarization spectrum two-dimensional information fusion analysis system and method. Background technique [0002] Spectral analysis is a key diagnostic tool in optical applications such as communications, sensing, molecular spectroscopy, and microwave generation. For example, the use of optical methods to measure the polarization spectrum two-dimensional parameters of the ultra-high rate signal transmitted in the optical fiber communication system to obtain the signal quality, polarization-dependent loss, frequency polarization drift and other information of the transmission signal, which is an effective way to diagnose and monitor the transmission signal Means: Laser spectrum contains most of the information on radiation characteristics. With the development of optical network technologies such as polarization wavelength division multiplexing and orthogonal frequency division multiplexing, the polarization characteri...

AI Technical Summary

Problems solved by technology

[0006] At present, several spectral analysis technologies based on the stimulated Brillouin effect can only perform spectral measurement with ultra-high spectral resolution, but cannot complete ultra-high-resolution polarization spectrum two-dimensional information fusion measurement, and cannot meet the needs of advanced communication modulation. formats, high-performance lasers, new-generation optoelectronic devices, etc. for ultra-high polarization spectral analysis

For example, patent EP1562028A1 provides a high-resolution spectral measurement method, but it can only realize the measurement of spectral parameters, and cannot realize the measurement of polarization spectral information fusion data

[0007] Therefore, the existing technology can only obtain polarization parameters and spectral parameters of high-speed optical networks, new optical devices, etc., or can only obtain spectral data of a specific polarization direction, and cannot directly perform fusion measurement of two-dimensional signals of polarization spectra, and there are It is difficult to realize the defect of pm level ultra-high polarization spectral analysis in the C and L bands, which needs to be improved

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