The paper will describe application of Brillouin spectroscopy to obtain Young modulus, stress, and thermal history of different glass parts as well as mechanical properties of polymer coating on optical fibers. We demonstrate that use of empirical relationships between Brillouin frequency and stress and thermal history in glass can provide useful information about different glass products like optical fibers, ion-exchanged glass and others. In addition, similar approach for polymers can serve as a tool to obtain degree of cure or Young modulus for multilayered products such optical fiber.
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