Abstract
The sensing distance of the optical time-domain reflectometry (BOTDR) is one of the key parameters for many real applications. In practice, the attenuated stimulating pulse light and its Brillouin scattering signal in the general BOTDR system will become too weak as the sensing fiber goes farther, which limits their uses in certain applications in which the distance to monitor is larger. To enhance the operating range of the BOTDR system, unidirectionally pump Raman amplifier is adopted for amplifying the stimulating pulse light and the scattering signal. Furthermore, our experiments confirm that 100 km sensing is realized by regulating parameters such as the power of Raman pump and EDFA gain.
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Alahbabi, M.N., Cho, Y.T., Newson, T.P.: 150-km-range distributed temperature sensor based on coherent detection of spontaneous Brillouin backscatter and in-line Raman amplification. J. Opt. Soc. 22(6), 1321–1324 (2005)
Horiguchi, T., Tateda, M.: BOTDA-nondestructive measurement of single-mode optical fiber attenuation characteristics using Brillouin interaction: theory. J. Lightwave Technol. 7(8), 1170–1176 (1989)
Jia, X.H., Rao, Y.J., Deng, K.: Experimental demonstration on 2.5-m spatial resolution and 1 °C temperature uncertainty over long-distance BOTDA with combined Raman Amplification and optical pulse coding. J. IEEE Photonic Tech. Lett. 23(7), 435–437 (2011a)
Jia, W.G., Yang, S.J., Yin, J.Q., et al.: Gain spectra of Raman scattering and parametric amplification in birefringence dispersion shifted fiber. J. Chin. J. Lumin. 32(5), 487–492 (2011b)
Jia, X.H., Rao, Y.J.: Enhanced sensing performance in long distance Brillouin optical time-domain analyzer based on Raman amplification: theoretical and experimental investigation. J. Lightwave Technol. 11(28), 1624–1630 (2010)
Kwon, H., Kim, S., Yeom, S., Kang, B., Kim, K., Kim, T., Jang, H., Kim, J., Kang, S.: Analysis of nonlinear fitting methods for distributed measurement of temperature and strain over 36 km optical fiber based on spontaneous Brillouin backscattering. J. Opt. Commun. 294, 59–63 (2013)
Li, A., Hu, Q., Che, D., Wang, Y., Shieh, W.: Measurement of distributed mode coupling in a few-mode fiber using a Brillouin optical time domain reflectometer. In: Conference on ECOC 2014, vol. 1–3 (2014)
Li, Y.Q., Wang, J., Yang, Z.: A method for improving BOTDR system performance. In: Symposium on Photonics and Optoelectronics (SOPO), pp. 1–4. IEEE (2012)
Lu, Y., Yao, Y., Zhao, X., Wang, F., Zhang, X.: Influence of non-perfect extinction ratio of electro-optic modulator on signal-to-noise ratio of BOTDR. J. Opt. Commun. 297, 48–54 (2013)
Maughan, S.M., Kee, H.H., Newson, T.P.: 57-km single-ended spontaneous Brillouin-based distributed fiber temperature sensor using microwave coherent detection. J. Opt. Lett. 26(6), 331–333 (2001)
Naruse, H., Tateda, M., Ohno, H., Shimada, A.: Linear strain distribution dependence of the Brillouin gain spectrum. In: Optical fiber sensors conference technical digest, 2002, OFS 2002, 15th, 2002, vol. 1, pp. 309–312 (2002)
Rao, Y.J., Chang, L., Jia, X.H.: Brillouin optical time domain analysis system based on Raman amplification and semiconductor optical amplifier. J. Univ. Electron. Sci. Technol. China 4(41), 621–625 (2012)
Rodríguez-Barrios, F., Martín-López, S., Carrasco-Sanz, A., et al.: Distributed Brillouin fiber sensor assisted by first-order Raman Amplification. J. Lightwave Technol. 28(15), 2162–2172 (2010)
Shen, Y.C., Song, M.P., Zhang, X.M., et al.: Brillouin scattering in long optical fiber. J. Acta Photonica Sin. 33(8), 931–934 (2004)
Song, M.P., Ma, Z.G.: Optical signal processing in Brillouin optical time domain reflector based Morlet wavelet transform. J. Acta Opt. Sin. 27(5), 819–823 (2007)
Song, M.P., Zhang, X.M.: Design and realization of Briliouin optical time domain reflectometer with 34 km in sensing length. J. Chin. J. Sci. Instrum. 26(11), 1155–1158 (2005)
Sawaguchi, H., Kashiwagi, K., Tanaka, Y., Kurokawa, T.: Sensing distance elongation in BOTDR scheme using optical frequency comb. In: C. MOC’13, vol. 1, pp. 3–5 (2013)
Wang, J., Jia, X.H., Rao, Y.J., et al.: Phase-sensitive optical time-domain reflectometer based on bi-directional Raman amplification. J. Acta Physica Sinica. 4, 034 (2013)
Wu, X., Ying, Z., Zhang, Y., Zhang, X.: Performance improvement for long-range BOTDR sensing system based on high extinction ratio modulator. J. Electron. Lett. 50(14), 1014–1016 (2014)
Yan, M.H., Chen, J.P., Li, J.L., et al.: Optimal configuration of multiple pump powers and wavelengths for balanced pre- and post-pumped Raman fiber amplifiers. J. Chin. J, Lasers 11(2), 61–65 (2002)
Zhang, Y., Ying, Z., Tu, G., Zhang, X., Lv, L.: Strain variation measurement with short-time Fourier transform-based Brillouin optical time-domain reflectometry sensing system. J. Electron. Lett. 50(22), 1624–1626 (2014)
Zhang, Z., Gong, H.: Amplification effect on SBS and Rayleigh scattering in the backward pumped distributed fiber Raman amplifier. J. Chin. Opt. Lett. 7, 393–395 (2009)
Zhao, Y., Zhang, Y., Han, B., Qin, C., Wang, Q.: High sensitive BOTDR demodulation method. J. Lightwave Technol. 31(21), 3345–3351 (2013)
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Song, M., Xia, Q., Feng, K. et al. 100 km Brillouin optical time-domain reflectometer based on unidirectionally pumped Raman amplification. Opt Quant Electron 48, 30 (2016). https://doi.org/10.1007/s11082-015-0314-z
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DOI: https://doi.org/10.1007/s11082-015-0314-z