We demonstrate a novel method that enables one to measure the structure of highly reflecting fiber Bragg gratings. The method is based on measuring both the transmission and reflection spectra of the grating and applying an inverse-scattering algorithm. The use of the transmission spectrum significantly reduces the sensitivity of the reconstruction to measurement noise, and therefore it significantly decreases the measurement duration. We experimentally demonstrate our method for reconstructing the structure of an apodized grating with a reflectivity of 99.91%.
© 2007 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: October 4, 2006
Manuscript Accepted: November 17, 2006
Published: February 2, 2007
Anatoly Sherman, Amir Rosenthal, and Moshe Horowitz, "Extracting the structure of highly reflecting fiber Bragg gratings by measuring both the transmission and the reflection spectra," Opt. Lett. 32, 457-459 (2007)