We present a new detection scheme for measuring the spatial distribution of mode coupling in birefringent, polarization-maintaining fibers. The new method can improve the signal-to-noise ratio by a factor of 100 compared with the previously reported heterodyne-detection scheme. As a result, origin of the mode coupling in a low-cross-talk, birefringent fiber is clarified.
© 1986 Optical Society of America
Original Manuscript: May 27, 1986
Manuscript Accepted: July 9, 1986
Published: October 1, 1986
K. Takada, J. Noda, and K. Okamoto, "Measurement of spatial distribution of mode coupling in birefringent polarization-maintaining fiber with new detection scheme," Opt. Lett. 11, 680-682 (1986)