Abstract

In a recent paper, we presented the influence of sinusoidal nonlinearities in the wavelength sweeping speed on the performance of an absolute distance interferometry setup. Nonlinearities in an optical frequency modulation system are generally the source of degradation in performance. The interest of this study comes from the experimental observation of the good behavior of an absolute distance measurement system with the presence of sinusoidal nonlinearities in the wavelength sweeping speed obtained from an external cavity laser diode (ECLD). This paper presents experimental results obtained with a custom ECLD based on a Littman–Metcalf setup. We link the sinusoidal nonlinear sweep to some mechanical properties of the cavity. The main source of these nonlinearities comes from the digitization of the piezoelectric transducer excitation. Different types of excitation like super-Gaussian and ramp, including or not sinusoidal modulations, were implemented and analyzed. By this way, we are able to reduce the spectral width by a factor 3 without adding linearization electronics such as a servo-loop control on injection current or nonuniform samplers, and our system achieves a $3 \times 10^{- 6}$ relative uncertainty on distance measurement with a number of samples reduced by a factor 8.

© 2009 IEEE

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2008 (2)

E. D. Moore, R. R. McLeod, "Correction of sampling errors due to laser tuning rate fluctuations in swept-wavelength interferometry," Opt. Exp. 16, 13139-13149 (2008).

T. Führer, T. Walther, "Extension of the mode-hop-free tuning range of an external cavity diode laser based on a model of the mode-hop dynamics," Opt. Lett. 33, 372-374 (2008).

2007 (3)

2006 (1)

S. Stry, S. Thelen, J. Sacher, D. Halmer, P. Hering, M. Mürtz, "Widely tunable diffraction limited 1000 mW external cavity diode laser in Littman/Metcalf configuration for cavity ring-down spectroscopy," Appl. Phys. B 85, 365-374 (2006).

2005 (1)

2003 (2)

M. A. Choma, M. V. Sarunic, C. Yang, J. A. Izatt, "Sensitivity advantage of swept source and Fourier domain optical coherence tomography," Opt. Exp. 11, 2183-2189 (2003).

R. Mokdad, B. Pécheux, P. Pfeiffer, P. Meyrueis, "Fringe pattern analysis with a parametric method for measurement of absolute distance by a frequency-modulated continuous optical wave technique," Appl. Opt. 42, 1008-1012 (2003).

2001 (1)

R. Schneider, P. Thürmel, M. Stockmann, "Distance measurement of moving objects by frequency modulated laser radar," Opt. Eng. 40, 33-37 (2001).

2000 (1)

1999 (1)

1996 (1)

K. Iiyama, L.-T. Wang, K.-I. Hayashi, "Linearizing optical frequency-sweep of a laser diode for FMCW reflectometry," J. Lightw. Technol. 14, 173-178 (1996).

1993 (1)

U. Glombitza, E. Brinkmeyer, "Coherent frequency-domain reflectometry for characterisation of single-mode integrated-optical waveguides," J. Lightw. Technol. 11, 1377-1384 (1993).

1992 (1)

K. Takada, "High-resolution OFDR with incorporated fiber-optic frequency encoder," IEEE Photon. Technol. Lett. 4, 1069-1072 (1992).

1991 (2)

1985 (1)

1978 (2)

1977 (1)

I. Shoshan, N. N. Danon, U. P. Oppenheim, "Narrowband operation of a pulsed dye laser without intracavity beam expansion," J. Appl. Phys. 48, 4495-4497 (1977).

Appl. Opt. (7)

Appl. Phys. B (1)

S. Stry, S. Thelen, J. Sacher, D. Halmer, P. Hering, M. Mürtz, "Widely tunable diffraction limited 1000 mW external cavity diode laser in Littman/Metcalf configuration for cavity ring-down spectroscopy," Appl. Phys. B 85, 365-374 (2006).

IEEE Photon. Technol. Lett. (1)

K. Takada, "High-resolution OFDR with incorporated fiber-optic frequency encoder," IEEE Photon. Technol. Lett. 4, 1069-1072 (1992).

J. Appl. Phys. (1)

I. Shoshan, N. N. Danon, U. P. Oppenheim, "Narrowband operation of a pulsed dye laser without intracavity beam expansion," J. Appl. Phys. 48, 4495-4497 (1977).

J. Lightw. Technol. (2)

U. Glombitza, E. Brinkmeyer, "Coherent frequency-domain reflectometry for characterisation of single-mode integrated-optical waveguides," J. Lightw. Technol. 11, 1377-1384 (1993).

K. Iiyama, L.-T. Wang, K.-I. Hayashi, "Linearizing optical frequency-sweep of a laser diode for FMCW reflectometry," J. Lightw. Technol. 14, 173-178 (1996).

Opt. Eng. (1)

R. Schneider, P. Thürmel, M. Stockmann, "Distance measurement of moving objects by frequency modulated laser radar," Opt. Eng. 40, 33-37 (2001).

Opt. Exp. (2)

E. D. Moore, R. R. McLeod, "Correction of sampling errors due to laser tuning rate fluctuations in swept-wavelength interferometry," Opt. Exp. 16, 13139-13149 (2008).

M. A. Choma, M. V. Sarunic, C. Yang, J. A. Izatt, "Sensitivity advantage of swept source and Fourier domain optical coherence tomography," Opt. Exp. 11, 2183-2189 (2003).

Opt. Lett. (6)

Other (2)

F. S. Luecke, Tuning System for External Cavity Diode Laser U.S. Patent 5 319 668 (1994).

L. Perret, P. Pfeiffer, A. Chakari, "Influence of non-linearities in wavelength-swept absolute distance interferometry," Proc. SPIE 6616 pp. 66161X-1-66161X-9 pp. 66161X- (2007).

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