Research on Length Optimization of Fiber of Length Measurement Method Based on Opto-Electronic Oscillator

Abstract:

Precision length measurement is one of the key techniques of modern manufacturing and industrial mechanics. Taking advantage of the high sensitivity and the corresponding relation between oscillation frequencies and group delay of the loop, the novel length measurement method based on Opto-Electronic Oscillator promises high accuracy absolute length measurement at long range. The length of optical fiber, which affects the characteristic of measurement and signal spectrum, is the key variable parameter, and has a great influence on the length measurement error. In this paper, the most important fiber-length-dependent errors, including the thermally-induced error and the error induced by frequency measurement error, are theoretically analyzed based on the principle of OEO. The fiber-length-dependent error model is established. And the optimum fiber length is deduced according to the model, and practical optimal design way of fiber length is proposed to reduce length measurement error. Experiments on different length of fiber are carried out to verify the optimization of this length measurement method. The results are insistent with the theory, showing the optimization method is effective and practical to reduce the fiber-length-dependent error.

• Periodical: Applied Mechanics and Materials (Volume 404)
• Pages: 454-459
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.404.454
• Online since: September 2013
• Authors: Ji Gui Zhu, Ting Hang Guo, Tao Zhang
• Keywords: Length Measurement, Length Measurement Error, Optimum Fiber Length, Opto-Electronic Oscillator

References

[1] X. Steve Yao, Lute Maleki, in: Optoelectronic microwave oscillator, volume 12 of Journal of the Optical Society of America, issue, 8, (1996), pp.1725-1735.

[2] Nguyen Lam Duy, Bernard Journet, Isabelle Ledoux-rak, in: Opto-electronic oscillator: Applications to sensors, International Topics' Meeting on 2008 Asia–Pacific Microwave Photonics Conference, (2008), pp.131-134.

DOI: 10.1109/mwp.2008.4666653

[3] Lam Duy Nguyen, Keitaro Nakatani, Bernard Journet, in: Refractive index measurement by using an optoelectronic oscillator, volume 22 of IEEE Photonic Technology Letters, issue, 12, (2010), pp.857-859.

DOI: 10.1109/lpt.2010.2046028

[4] M. Kaba, H-W. Li, A. s. Daryoush. in: Improving thermal stability of Opto-Electronic Oscillaotrs, volume 7 of IEEE Microwave Magazine, issue, 4, (2006), pp.38-47.

DOI: 10.1109/mmw.2006.1663988

[5] D. Eliyahu, K. Sariri, M. Kamran, in: Improving short and long term frequency stability of the Opto-Electronic Oscillator, IEEE conference on Frequency control symposium and PDA exhibition, (2002), pp.580-583.

DOI: 10.1109/freq.2002.1075948

[6] T. Musha, J. Kamimura, M. Nakazawa, in: Optical phase fluctuations thermally induced in a single-mode optical fiber, volume 21 of Applied Optics, issue, 4, (1982), pp.694-698.

DOI: 10.1364/ao.21.000694

[7] D. Eliyahu, K. Sariri, J. Taylor et al, in: Opto-Electronic oscillator with improved phase noise and frequency stability, Proceedings of SPIE, Photonics West, Vol. 4998B (2003), pp.138-147.

[8] G. Beck, L Bigot, G. Bouwmans et al. , in: Benefits of photonic bandgap fibers for the thermal stabilization of optoelectronic oscillators, volume 4 of IEEE Photonics Journal, issue, 3, (2012), pp.789-794.

DOI: 10.1109/jphot.2012.2195778

[9] A. V. Loparev, M. E. Belkin, Modeling a transducer based on an optoelectronic oscillator for precision measurements of the optico-physical parameters of different media, volume 53 of Measurement Techniques, issue, 11, (2011), pp.1236-1245.

DOI: 10.1007/s11018-011-9648-5

[10] Andrew Docherty, Olukayode Okusaga, Curtis R. Menyuk et al. , in: Theoretical investigation of optical fiber-length-dependent phase noise in opto-electronic osillators, Frequency control and the European frequency and time forum, 2011 joint conference of the IEEE.

DOI: 10.1109/fcs.2011.5977781

[11] Wang Jing, Yang Xueyou, Zhang Tao et al. , in: A distance measurement method based on the opto-electronic oscillator, column 25 of Chinese Journal of Sensors and Actuators, issue, 11, (2012), pp.1494-1497.