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(Color online) Configuration of fiber grating microphone.
(Color online) (a) Illustration shows the significance of prestraining the FBG for acoustic waves. (b) Shift in the reflected spectrum due to prestraining the FBG.
Experimental layout for testing the fiber grating microphone.
(Color online) Output of fiber-optic microphone at (a) and (b) as observed on the oscilloscope.
(Color online) Change in microphone output amplitude as the distance between the sensor and speaker increases.
(Color online) Frequency response of the sensor and the frequency response of a commercial condenser tie microphone.
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