Abstract
We demonstrate the possibility of measuring reflection spectra of fiber Bragg gratings by tuning the wavelength of an off-the-shelf laser diode. Two methods of tuning are studied: temperature tuning at a frequency of 0.5 Hz and current tuning at a frequency of tens of kHz. A wavelength resolution of 2 pm is achieved for both methods. It is shown that by current tuning it is possible to interrogate fiber Bragg gratings at frequencies up to 100 kHz. Using the methods proposed, we have measured the shift of the reflection spectra of a fiber Bragg grating upon heating.
Full Text
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call