A Bragg grating in a photonic crystal fiber was written and its dependence with temperature and strain analyzed. The two observed Bragg wavelengths correspond to a fundamental and a higher-order mode in the optical fiber. The temperature and strain calibration curves for both modes are measured and found to be distinct. The general properties of gratings in these fibers, and their implications, are enunciated.
© 2005 Optical Society of America
Cicero Martelli, John Canning, Nathaniel Groothoff, and Katja Lyytikainen, "Strain and temperature characterization of photonic crystal fiber Bragg gratings," Opt. Lett. 30, 1785-1787 (2005)