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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 17 — Jun. 10, 2013
  • pp: 3957–3963

Sensitive detection of CO2 implementing tunable thulium-doped all-fiber laser

K. Bremer, A. Pal, S. Yao, E. Lewis, R. Sen, T. Sun, and K. T. V. Grattan  »View Author Affiliations

Applied Optics, Vol. 52, Issue 17, pp. 3957-3963 (2013)

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In this paper a compact, yet sensitive gas detection system based on a modulated, tunable thulium-doped fiber laser in the 2 μm wavelength region is reported. The laser operating wavelength range centered at a wavelength of 1.995 μm has been selected to access the R(50) transition (ν1+2ν2+ν3) of CO2 based on its line strength and to achieve isolation from interfering high-temperature water absorption features. The laser linewidth and tuning range are optimized accordingly. The modulation of the fiber laser, achieved through pump source modulation and a locking detection mechanism, has been utilized to stabilize the laser system and therefore to create a compact gas sensor with high sensitivity. The absorption spectrum, as well as the line strength and the concentration level of CO2, have been monitored through absorption spectroscopy techniques. The measured minimum detectable concentration of CO2 obtained using the system shows that it is quite capable of detecting trace gas at the ppm (parts in 106) level. The stable laser performance achieved in the sensor system illustrates its potential for the development of practical, compact, yet sensitive fiber-laser-based gas sensor systems.

© 2013 Optical Society of America

OCIS Codes
(060.4080) Fiber optics and optical communications : Modulation
(140.3600) Lasers and laser optics : Lasers, tunable
(010.1030) Atmospheric and oceanic optics : Absorption
(060.3510) Fiber optics and optical communications : Lasers, fiber

ToC Category:
Lasers and Laser Optics

Original Manuscript: January 16, 2013
Revised Manuscript: May 8, 2013
Manuscript Accepted: May 9, 2013
Published: June 5, 2013

K. Bremer, A. Pal, S. Yao, E. Lewis, R. Sen, T. Sun, and K. T. V. Grattan, "Sensitive detection of CO2 implementing tunable thulium-doped all-fiber laser," Appl. Opt. 52, 3957-3963 (2013)

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  1. G. Stewart, “Technology,” in Optical Fiber Sensors, K. T. V. Grattan and B. T. Meggitt, eds. (Kluwer Academic, 1999), Chap. 5, pp. 87–112.
  2. G. Stewart, G. Whitenett, P. Shields, J. Marshall, and B. Culshaw, “Design of fiber laser and sensor systems for gas spectroscopy in the near-IR,” Proc. SPIE 172, 172–180 (2004). [CrossRef]
  3. Y. Zhang, M. Zhang, W. Jin, H. L. Ho, M. S. Demokan, X. H. Fang, B. Culshaw, and G. Stewart, “Investigation of erbium-doped fiber laser intracavity absorption sensor for gas detection,” Opt. Commun. 234, 435–441 (2004). [CrossRef]
  4. J. Cousin, P. Masselin, W. Chen, D. Boucher, S. Kassi, D. Romanini, and P. Szriftgiser, “Application of a continuous-wave tunable erbium-doped finer laser to molecular spectroscopy in the near infrared,” Appl. Phys. B 83, 261–266 (2006). [CrossRef]
  5. P. Werle, R. Mücke, F. D’Amato, and T. Lancia, “Near-infrared trace-gas sensors based on room-temperature diode lasers,” Appl. Phys. B 67, 307–315 (1998). [CrossRef]
  6. A. Rocco, G. De Natale, P. De Natale, G. Gagliardi, and L. Gianfrani, “A diode-laser-based spectrometer for in-situ measurements of volcanic gases,” Appl. Phys. B 78, 235–240 (2004). [CrossRef]
  7. M. E. Webber, S. Kim, S. T. Sanders, D. S. Baer, R. K. Hanson, and Y. Ikeda, “In situ combustion measurements of CO2 by use of a distributed-feedback diode-laser sensor near 2.0 μm,” Appl. Opt. 40, 821–828 (2001). [CrossRef]
  8. V. L. Kasyutich and P. A. Martin, “A CO2 sensor based upon a continuous-wave thermoelectrically-cooled quantum cascade laser,” Sens. Actuators B 157, 635–640 (2011). [CrossRef]
  9. G. Whitenett, G. Stewart, H. Yu, and B. Culshaw, “Investigation of a tunable mode locked fiber laser for application to multipoint gas spectroscopy,” J. Lightwave Technol. 22, 813–819 (2004). [CrossRef]
  10. HITRAN2008 database, http://www.cfa.harvard.edu/hitran/vibrational.html .
  11. W. A. Clarkson, N. P. Barnes, P. W. Turner, J. Nilsson, and D. C. Hanna, “High-power cladding pumped Tm-doped silica fiber laser with wavelength tuning from 1860 to 2090 nm,” Opt. Lett. 27, 1989–1991 (2002). [CrossRef]
  12. A. Pal, R. Sen, K. Bremer, S. Yao, E. Lewis, T. Sun, and K T. V. Grattan, “‘All-fiber’ tunable laser in the 2 μm region, designed for CO2 detection,” Appl. Opt. 51, 7011–7015 (2012). [CrossRef]
  13. N. L. Alpert, W. E. Keiser, and H. A. Szymanski, IR: Theory and Practice of Infrared Spectroscopy, 2nd ed. (Plenum, 1970), p. 303.
  14. J. Mulrooney, “An optical fibre sensor for the measurement of carbon dioxide exhaust emissions from land transport vehicles,” Ph.D. thesis (University of Limerick, 2006).
  15. A. E. Siegman, Lasers (University Science Books, 1986), pp. 957, 502.
  16. S. Michelsen, “Optical fiber grating based sensors,” Ph.D. thesis (Technical University of Denmark, 2003).
  17. A. N. Pisarchik and Yu. O. Barmenkov, “Locking of self-oscillation frequency by pump modulation in an erbium-doped fiber laser,” Opt. Commun. 254, 128–137 (2005). [CrossRef]

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