Abstract

A signal-to-noise ratio enhancement of an order of magnitude was observed when digital signal-processing algorithms were applied to two diode-laser frequency-modulation spectrometers in the near-infrared and midinfrared spectral ranges. These algorithms include digital bandpass filters, a Wiener filter, a matched filter, and a least-squares fit. Digital signal processing has a practical advantage over other noise suppression techniques because it is easy to implement and to adapt to all experiment configurations without any physical modifications or additions to the spectrometer.

© 1994 Optical Society of America

Full Article  |  PDF Article

References

  • View by:
  • |
  • |
  • |

  1. G. C. Bjorklund, Opt. Lett. 5, 15 (1980).
    [CrossRef] [PubMed]
  2. J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
    [CrossRef]
  3. G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
    [CrossRef]
  4. G. Janik, C. B. Carlisle, T. F. Gallagher, J. Opt. Soc. Am. B 3, 1070 (1986).
    [CrossRef]
  5. D. E. Cooper, R. E. Warren, J. Opt. Soc. Am. B 4, 470 (1987).
    [CrossRef]
  6. C. R. Webster, J. Opt. Soc. Am. B 2, 1464 (1985).
    [CrossRef]
  7. C. B. Carlisle, D. E. Cooper, Opt. Lett. 14, 1306 (1989).
    [CrossRef] [PubMed]
  8. J. A. Silver, A. C. Stanton, Appl. Opt. 27, 1914 (1988).
    [CrossRef] [PubMed]
  9. E. A. Whitaker, C. M. Shum, H. Grebel, H. Lotem, J. Opt. Soc. Am. B 5, 1253 (1988).
    [CrossRef]
  10. L. G. Wang, D. Tate, H. Riris, T. F. Gallagher, J. Opt. Soc. Am. B 6, 871 (1989).
    [CrossRef]
  11. W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).
  12. W. A. Gardner, Introduction to Random Processes (Macmillan, New York, 1986).
  13. A. K. Jain, Fundamentals of Digital Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1989).
  14. A. Fried, B. Henry, J. R. Drummond, Appl. Opt. 32, 821 (1993).
    [CrossRef] [PubMed]

1993

1989

1988

1987

1986

1985

1983

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

1981

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

1980

Baer, T.

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

Bjorklund, G. C.

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

G. C. Bjorklund, Opt. Lett. 5, 15 (1980).
[CrossRef] [PubMed]

Carlisle, C. B.

Cooper, D. E.

Drummond, J. R.

Flannery, B. P.

W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).

Fried, A.

Gallagher, T. F.

Gardner, W. A.

W. A. Gardner, Introduction to Random Processes (Macmillan, New York, 1986).

Grebel, H.

Hall, J. L.

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

Henry, B.

Hollberg, L.

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

Jain, A. K.

A. K. Jain, Fundamentals of Digital Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1989).

Janik, G.

Lenth, W.

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Levenson, M. D.

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Lotem, H.

Ortiz, C.

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Press, W. H.

W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).

Riris, H.

Robinson, H. G.

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

Shum, C. M.

Silver, J. A.

Stanton, A. C.

Tate, D.

Teukolsky, S. A.

W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).

Vetterling, W. T.

W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).

Wang, L. G.

Warren, R. E.

Webster, C. R.

Whitaker, E. A.

Appl. Opt.

Appl. Phys. B

G. C. Bjorklund, M. D. Levenson, W. Lenth, C. Ortiz, Appl. Phys. B 32, 145 (1983).
[CrossRef]

Appl. Phys. Lett.

J. L. Hall, L. Hollberg, T. Baer, H. G. Robinson, Appl. Phys. Lett. 39, 680 (1981).
[CrossRef]

J. Opt. Soc. Am. B

Opt. Lett.

Other

W. H. Press, B. P. Flannery, S. A. Teukolsky, W. T. Vetterling, Numerical Recipes in C (Cambridge U. Press, Cambridge, 1991).

W. A. Gardner, Introduction to Random Processes (Macmillan, New York, 1986).

A. K. Jain, Fundamentals of Digital Image Processing (Prentice-Hall, Englewood Cliffs, N.J., 1989).

Cited By

OSA participates in CrossRef's Cited-By Linking service. Citing articles from OSA journals and other participating publishers are listed here.

Alert me when this article is cited.


Figures (4)

Fig. 1
Fig. 1

Experimental setup.

Fig. 2
Fig. 2

Application of an infinite impulse response elliptical filter (IIR Elliptical) and a finite impulse response Kaiser filter (FIR Kaiser) to an FMS signal.

Fig. 3
Fig. 3

Application of a Wiener filter to an FMS signal.

Fig. 4
Fig. 4

Application of a matched-filter and linear-fit combination to an FMS signal.

Equations (2)

Equations on this page are rendered with MathJax. Learn more.

H ( f ) = | S ( f ) | 2 / [ | S ( f ) | 2 + | N ( f ) | 2 ] ,
H ( f ) = S * ( f ) exp ( 2 π ift 0 ) / | N ( f ) | 2 ,

Metrics