Optical coherence tomography

Details Optical coherence tomography Optical coherence tomography

2003-07-16

2009-02-10

Lee, Hwa (Andrew) S (Department: 2886)

Optics: measuring and testing

By light interference

For dimensional measurement

Reexamination Certificate

active

07489405

ABSTRACT:
An optical coherence tomography system includes an optical source has an emission wavelength in the range of 1.6 μm to 2.0 μm, in particular having an infrared emission predominantly at a wavelength of 1.8 μm associated with a transition between an upper energy level and a lower energy level and the optical source comprises an excitation system which generates stimulated emission from a pump level to the upper energy level. The optical source may include a Tm-doped fiber in an optical cavity.

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R. C. Sharp; “190-FS Passively Mode-Locked Thulium Laser With a Low Threshold”, Optics Letters, Optical Society of America, Washington, vol. 21, No. 12.
‘Optical coherence tomography’, David Huang et al., in Science 254(1991)1178-1181.
‘Optical coherence tomographicn imaging of human tissue at 1.55μm and 1.81μm using Er- and Tm-doped fiber sources’ by B.E. Bouma et al, in J. Biomedical Optics 3(1998)76-79.

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