Abstract

We describe a new interferometric configuration for optical coherence tomography that is based on the Mirau interferometer. It uses the photodetector included in a superluminescent diode package, which makes possible a highly miniaturized device. Other advantages of the configuration include its totally coaxial structure, confocal microscope operation, availability of the full working distance of the imaging objective, and no central obscuration. Fundamental characteristics such as resolution and dynamic range are discussed, and the result of measurement on a rough metallic surface is presented.

© 2002 Optical Society of America

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  1. D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
    [CrossRef] [PubMed]
  2. J. M. Schmitt, Opt. Lett. 20, 419 (1995).
    [CrossRef]
  3. T. Ikari, M. Sato, and N. Tanno, in Conference on Lasers and Electro-Optics (CLEO), Vol. 56 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), pp. 253–254.
  4. G. S. Kino and S. S. C. Chim, Appl. Opt. 29, 3775 (1990).
    [CrossRef] [PubMed]
  5. R. Juškaitis, N. P. Rea, and T. Wilson, Appl. Opt. 33, 578 (1994).
    [CrossRef]
  6. M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
    [CrossRef]

2000 (1)

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

1995 (1)

1994 (1)

1991 (1)

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

1990 (1)

Chang, W.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Chim, S. S. C.

Flotte, T.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Fujimoto, J. G.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Gregory, K.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Hee, M. R.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Huang, D.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Ikari, T.

T. Ikari, M. Sato, and N. Tanno, in Conference on Lasers and Electro-Optics (CLEO), Vol. 56 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), pp. 253–254.

Juškaitis, R.

Kino, G. S.

Lin, C. P.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Onodera, K.

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

Puliafito, C. A.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Rea, N. P.

Sato, M.

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

T. Ikari, M. Sato, and N. Tanno, in Conference on Lasers and Electro-Optics (CLEO), Vol. 56 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), pp. 253–254.

Schmitt, J. M.

Schuman, J. S.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Seino, K.

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

Stinson, W. G.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Swanson, E. A.

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Tanno, N.

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

T. Ikari, M. Sato, and N. Tanno, in Conference on Lasers and Electro-Optics (CLEO), Vol. 56 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), pp. 253–254.

Wilson, T.

Appl. Opt. (2)

Opt. Commun. (1)

M. Sato, K. Seino, K. Onodera, and N. Tanno, Opt. Commun. 184, 95 (2000).
[CrossRef]

Opt. Lett. (1)

Science (1)

D. Huang, E. A. Swanson, C. P. Lin, J. S. Schuman, W. G. Stinson, W. Chang, M. R. Hee, T. Flotte, K. Gregory, C. A. Puliafito, and J. G. Fujimoto, Science 254, 1178 (1991).
[CrossRef] [PubMed]

Other (1)

T. Ikari, M. Sato, and N. Tanno, in Conference on Lasers and Electro-Optics (CLEO), Vol. 56 of OSA Trends in Optics and Photonics (Optical Society of America, Washington, D.C., 2001), pp. 253–254.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the coaxial Mirau interferometer: PD, photodector; I0, light produced by the SLD; IR and IS, reference and signal waves, respectively.

Fig. 2
Fig. 2

Experimental setup of the coaxial Mirau interferometer: PD, photodiode; LD, laser diode; PZT, piezoelectric transducer; 3D, three dimensional; NA, numerical aperture.

Fig. 3
Fig. 3

(a) Axial resolution of the coaxial Mirau interferometer determined by use of the same setup for measuring the coherence function. (b) For the lateral resolution the focal spot radii (in the x and y directions) were assessed by the knife-edge method.

Fig. 4
Fig. 4

(a) Japanese 5-yen coin used as a sample. The selected area is indicated by a white square at the bottom right of the coin, shown enlarged in (b). (c) Two of the horizontal ridges can be seen in the corresponding OCT image, whose actual size is 2 mm×2 mm. Measurement of the geometrical details in the OCT image permitted its correct placement on the close-up photograph, as marked by the dotted lines in (d).

Equations (4)

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

IHBt=I1+IR+IS+2IRISgOPD×cosφ0+4kX0 sinω0t=I1+IR+IS+2IRISgOPD×cos φ0J04kX0+2n=1J2n4kX0cos 2nω0t-sin φ02n=0J2n+14kX0sin2n+1ω0t,
IHBACIRIS.
IR=I0R11-R12R22,    IS=I01-R121-R22RS,
IRISR11-R14R221-R22.

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