A new, to our knowledge, interferometric method of measuring beat lengths in polarization-maintaining fibers that is based on correlation measurements is presented.
© 1998 Optical Society of America
(120.3180) Instrumentation, measurement, and metrology : Interferometry
V. Sikka, S. Balasubramanian, A. Viswanath, and K. Srinivasan, "Correlation-Based Interferometric Method of Evaluating the Beat Length," Appl. Opt. 37, 350-351 (1998)