DOI: 10.17586/2226-1494-2016-16-6-1018-1022


EFFECT OF OPTICAL FIBER HYDROGEN LOADING ON THE INSCRIPTION EFFICIENCY OF CHIRPED BRAGG GRATINGS BY MEANS OF KrF EXCIMER LASER RADIATION

S. V. Varzhel, M. Rothhardt, A. V. Kulikov, B. Hartmut


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For citation: Varzhel S.V., Rothhardt M., Kulikov A.V., Bartelt H. Effect of optical fiber hydrogen loading on the inscription efficiency of chirped Bragg gratings by means of KrF excimer laser radiation. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2016, vol. 16, no. 6, pp. 1018–1022.. doi: 10.17586/2226-1494-2016-16-6-1018-1022

Abstract

Subject of Research.We present comparative results of the chirped Bragg gratings inscription efficiency in optical fiber of domestic production with and without low-temperature hydrogen loading. Method. Chirped fiber Bragg gratings inscription was made by the Talbot interferometer with chirped phase mask having a chirp rate of 2.3 nm/cm used for the laser beam amplitude separation. The excimer laser system Coherent COMPexPro 150T, working with the gas mixture KrF (248 nm), was used as the radiation source. In order to increase the UV photosensitivity, the optical fiber was placed in a chamber with hydrogen under a pressure of 10 MPa and kept there for 14 days at 40 °C. Main Results. The usage of the chirped phase mask in a Talbot interferometer scheme has made it possible to get a full width at half-maximum of the fiber Bragg grating reflection spectrum of 3.5 nm with induced diffraction structure length of 5 mm. By preliminary hydrogen loading of optical fiber the broad reflection spectrum fiber Bragg gratings with a reflectivity close to 100% has been inscribed. Practical Relevance. The resulting chirped fiber Bragg gratings can be used as dispersion compensators in optical fiber communications, as well as the reflective elements of distributed fiber-optic phase interferometric sensors.


Keywords: fiber Bragg grating, chirping, phase mask, hydrogen loading, Talbot interferometer, excimer laser

Acknowledgements. This work has been executed at ITMO University and supported by the Ministry of Education and Science of the Russian Federation (Unique identifier of the project: RFMEFI57815X0109, Contract No.14.578.21.0109).

References

1. Hill K.O., Fujii Y., Johnson D.C., Kawasaki B.S. Photosensitivity in optical fiber waveguides: application to reflection filter fabrication. Applied Physics Letters, 1978, vol. 32, no. 10, pp. 647–649. doi: 10.1063/1.89881
2. Meltz G., Morey W.W., Glenn W.H. Formation of Bragg gratings in optical fibers by a transverse holographic method. Optics Letters, 1989, vol. 14, no. 15, pp. 823–825. doi: 10.1364/OL.14.000823
3. Canning J. Fibre gratings and devices for sensors and lasers. Laser and Photonics Review, 2008, vol. 2, no. 4, pp. 275–289. doi: 10.1002/lpor.200810010
4. Pinto J.L. Fiber Bragg grating sensors novel applications. Proc. of Latin America Optics and Photonics Conference. San Sebastiano, Brazil, 2012, art. LS2C.1. doi: 10.1364/LAOP.2012.LS2C.1
5. Roriz P., Carvalho L., Frazao O., Santos J.L., Simoes J.A. From conventional sensors to fibre optic sensors for strain and force measurements in biomechanics applications: a review. Journal of Biomechanics, 2014, vol. 47, no. 6, pp. 1251–1261. doi: 10.1016/j.jbiomech.2014.01.054
6. Othonos A. Fiber Bragg gratings. Review of Scientific Instruments, 1997, vol. 68, no. 12, pp. 4309–4341.
7. Vasil'ev S.A., Medvedkov O.I., Korolev I.G., Bozhkov A.S., Kurkov A.S., Dianov E.M. Fibre gratings and their applications. Quantum Electronics, 2005, vol. 35, no. 12, pp. 1085–1103. doi: 10.1070/QE2005v035n12ABEH013041
8. Meshkovsky I.K., Varzhel S.V., Belikin M.N., Kulikov A.V., Brunov V.S. Thermal annealing of Bragg grating on manufacturing of fiber-optic phase sensor. Journal of Instrument Engineering, 2013, vol. 56, no. 5, pp. 91–93. (In Russian)
9. Takahashi N., Hirose A., Takahashi S. Underwater acoustic sensor with fiber Bragg grating. Optical Review, 1997, vol. 4, no. 6, pp. 691–694.
10. Okawara Ch., Saijyou K. Fiber optic interferometric hydrophone using fiber Bragg grating with wavelength division multiplexing. Acoustical Science and Technology, 2008, vol. 29, no. 3, pp. 232–234. doi: 10.1250/ast.29.232
11. Campopiano St., Cutolo A., Cusano A., Giordano M., Parente G., Lanza G., Laudati A. Underwater acoustic sensors based on fiber Bragg gratings. Sensors, 2009, vol. 9, no. 6, pp. 4446–4454. doi: 10.3390/s90604446
12. Munko A.S., Varzhel S.V., Arkhipov S.V., Zabiyakin A.N. Protective coatings of fiber Bragg grating for minimizing of mechanical impact on its wavelength characteristics. Scientific and Technical Journal of Information Technologies, Mechanics and Optics, 2015, vol.15, no. 2, pp. 241–245. doi: 10.17586/2226-1494-2015-15-2-241-245
13. Lemaire P.J., Atkins R.M., Mizrahi V., Reed W.A. High pressure H2 loading as a technique for achieving ultrahigh UV photosensitivity and thermal sensitivity in GeO2 doped optical fibres. Electronics Letters, 1993, vol. 29, no. 13, pp. 1191–1193.
14. Kashyap R. Fiber Bragg Gratings. San Diego, Academic Press, 1999, 478 p.
15. Varzhel S.V., Munko A.S., Konnov K.A., Gribaev A.I., Kulikov A.V. Writing of Bragg gratings in birefringent optical fiber with an elliptical stress cladding subjected to hydrogen treatment. Opticheskii Zhurnal, 2016, vol. 83, no. 10, pp. 74–78. (In Russian)
16. Idrisov R.F., Varzhel S.V., Kulikov A.V., Meshkovskiy I.K., Rothhardt M., Becker M., Schuster K., Bartelt H. Spectral characteristics of draw-tower step-chirped fiber Bragg gratings. Optics and Laser Technology, 2016, vol. 80, pp. 112–115. doi: 10.1016/j.optlastec.2016.01.007
 



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