Optical fibre probe for photoacoustic material analysis

Details Optical fibre probe for photoacoustic material analysis Optical fibre probe for photoacoustic material analysis

2005-01-04

2005-01-04

Williams, Joseph (Department: 2879)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

C385S117000, C385S116000

Reexamination Certificate

active

06839496

ABSTRACT:
A probe comprises an excitation source and a double-core optical fiber. A pulsed laser signal (20) of the excitation sources supplied to the outer core (42) at one end of the optical fiber. The other end is provided with an interferometer film (18). An excitation signal (22) produced in the sample (10) modulates the thickness of the film (18). This provides an interferometer signal (26, 28) detected from the inner core (40).

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