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Experimental investigation of link between growth and decay of fiber Bragg gratings
Balaji Srinivasan1, V J Vishnu Prasad, Rajesh Joseph
1Department of Electrical Engineering, Indian Institute of Technology Madras, Chennai 600 036, India. balajis@ee.iitm.ac.in
Abstract:
We report here an experimental investigation for establishing and quantifying a link between the growth and decay characteristics of fiber Bragg gratings. One of the key aspects of our work is the determination of the defect energy distribution from the grating characteristics measured during their fabrication. We observe a strong correlation between the growth-based defect energy distribution and that obtained through accelerated aging experiments, paving the way for predicting the decay characteristics of fiber Bragg gratings from their growth data. Such a prediction is significant in simplifying the postfabrication steps required to enhance the thermal stability of fiber Bragg gratings.
