Bragg gratings in polymethyl methacrylate (PMMA)-based polymer fibers were created and were tuned thermally. It is found that the tuning range is more than 18 nm over a temperature variation of 50/spl deg/C. More importantly, no hysteresis effect was observed as the gratings were heated up and cooled down.
No takes yet. Share an insight, caveat, or question.
Liu et al. (2001) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: