Method for detecting resonant wavelength shift of integrated resonant ring

A technology of integrating resonant ring and resonant wavelength, applied in the field of integrated optical sensing, can solve the problems of affecting the detection accuracy of resonant wavelength, affecting the detection accuracy, etc., so as to improve the detection accuracy and stability, improve the detection accuracy and improve the stability. Effect

Active Publication Date: 2014-02-12
NINGBO YINUO ELECTRONICS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These noises will directly affect the detection accuracy of the resonan

Method used

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  • Method for detecting resonant wavelength shift of integrated resonant ring
  • Method for detecting resonant wavelength shift of integrated resonant ring
  • Method for detecting resonant wavelength shift of integrated resonant ring

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 2

[0023] Embodiment 2: Laser 1 outputs a single-frequency laser 7, the frequency is , and its spectrum is as image 3 shown. This laser light passes through an intensity or phase modulator 2 . The intensity or phase modulator is driven by a network analyzer 6 . The output frequency of the network analyzer is between 1GHz and 60GHz. The spectrum of the output light after the laser is modulated by the modulator is as follows: Figure 4 shown. In addition to the original input laser light 7, the modulated optical signal will also contain two sideband lights 9 and 8, whose frequencies are and , respectively. After that, the optical signal will be input to filter 3 . This filter will filter out frequencies as sideband light 9, the output spectrum is as Figure 6 shown. The optical signal after passing the filter will be input to the integrated resonant ring 4, and then converted into an electrical signal by the detector 5, and acquired by the network analyzer 6 to analyze the ...

Embodiment 3

[0024] Embodiment 3: as figure 2 As shown, the laser 1 outputs a single-frequency laser 7, the frequency is , and its spectrum is as image 3 shown. This laser light passes through an intensity or phase modulator 2 . The intensity or phase modulator is driven by a network analyzer 6 . The output frequency of the network analyzer is between 1GHz and 60GHz. The spectrum of the output light after the laser is modulated by the modulator is as follows: Figure 4 shown. In addition to the original input laser light 7, the modulated optical signal will also contain two sideband lights 9 and 8, whose frequencies are and , respectively. Afterwards, the optical signal will be input to the integrated resonant ring 4 and then to the filter 3 . This filter will filter out frequencies as sideband light 8, the output spectrum is as Figure 5 shown. The optical signal after passing the filter will be converted into an electrical signal by the detector 5 and acquired by the network an...

Embodiment 4

[0025] Embodiment 4: Laser 1 outputs a single-frequency laser 7, the frequency is , and its spectrum is as image 3 shown. This laser light passes through an intensity or phase modulator 2 . The intensity or phase modulator is driven by a network analyzer 6 . The output frequency of the network analyzer is between 1GHz and 60GHz. The spectrum of the output light after the laser is modulated by the modulator is as follows: Figure 4 shown. In addition to the original input laser light 7, the modulated optical signal will also contain two sideband lights 9 and 8, whose frequencies are and , respectively. Afterwards, the optical signal will be input to the integrated resonant ring 4 and then to the filter 3 . This filter will filter out frequencies as sideband light 9, the output spectrum is as Figure 6 shown. The optical signal after passing the filter will be converted into an electrical signal by the detector 5 and acquired by the network analyzer 6 to analyze the phas...

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Abstract

The invention discloses a method for detecting resonant wavelength shift of an integrated resonant ring. A pair of lasers with a frequency difference are generated to serve as detecting optical signals after a single-frequency laser passes through the integrated resonant ring; the resonant wavelength shift amount is obtained through detection of the phase difference of the detecting optical signals. According to the method, a phase detection method is adopted, the intensity noise caused by the factors of the stability of a light source, vibration of an optically coupled system between the integrated resonant ring and an integrated chip is effectively reduced, and the detecting accuracy is improved.

Description

technical field [0001] The invention relates to the field of integrated light sensing, in particular to a method for detecting the resonance wavelength drift of a resonance ring. The method can be used in temperature, chemical, biological and other optical sensing systems based on integrated chips. Background technique [0002] With the development of information technology and bioengineering technology, sensor technology has gradually become one of the three pillars of the information industry in the 21st century, and has been widely infiltrated in the construction of infrastructure and services. Sensors are not only widely used in the field of traditional medicine, but also in the fields of life science, food industry, environmental monitoring, national defense security and fermentation engineering. Nowadays, people's requirements for quality of life are getting higher and higher, and the requirements for fields closely related to human life are also gradually increasing....

Claims

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Application Information

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IPC IPC(8): G01J9/04
Inventor 郑志强
Owner NINGBO YINUO ELECTRONICS TECH
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