Passive laser spectrum detection technology based on static interferometer

Xiao Li; Ji-long Zhang; Er-ming Tian; Zhi-bin Wang

doi:10.1117/12.805724

2 February 2009 Passive laser spectrum detection technology based on static interferometer

Xiao Li, Ji-long Zhang, Er-ming Tian, Zhi-bin Wang

Author Affiliations +

Proceedings Volume 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications; 71601I (2009) https://doi.org/10.1117/12.805724
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

Abstract

Laser spectrum detection is an important technology which is used in laser reconnaissance and laser warning receiver. The identification of the laser spectrum can provide the information for optic-electronic countermeasure. On the basis of analysis of and research on the current laser spectrum detection technology, a passive laser spectrum detection system based on the theory of coherent spectrum detection and Fourier Transform spectrum detection technology was designed. The fiber optical antenna and modified wedge interferometer are system's important component parts, and the parameters of them are expatiated detailedly. The spectrum information was obtained after the Opto-Electronic transform by liner charge couple device (CCD) and Fourier transform by fast digital signal processor (DSP). The design method and the structure principle of key parts were analyzed detailedly in this paper, it also consisted the correlative performance analyze and setting up of experiment system. The result shows that the measure of wavelength of eight different semiconductor lasers, The test results indicate that the response time of the designed system is less than 10ms and the wavelength resolution is less than 10nm.

Citation Download Citation

Xiao Li, Ji-long Zhang, Er-ming Tian, and Zhi-bin Wang "Passive laser spectrum detection technology based on static interferometer", Proc. SPIE 7160, 2008 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Applications, 71601I (2 February 2009); https://doi.org/10.1117/12.805724

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KEYWORDS

Laser applications

Fourier transforms

Digital signal processing

Fabry–Perot interferometers

Laser countermeasures

Fiber lasers

Interferometers

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