This Letter demonstrates a polarization-maintaining higher-order mode fiber module that has anomalous dispersion at 1 μm. The group velocity dispersion of the module is measured, showing a split of the two polarization axes. The excellent polarization-maintaining properties of the relevant fiber modes for the higher-order mode fiber are likewise demonstrated employing a new simple method for the measurement of the beat length of higher-order modes at a single wavelength. The higher-order fiber module is intended for group velocity dispersion compensation.
© 2012 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: June 15, 2012
Revised Manuscript: August 17, 2012
Manuscript Accepted: September 1, 2012
Published: October 2, 2012
S. H. M. Larsen, M. E. V. Pedersen, L. Grüner-Nielsen, M. F. Yan, E. M. Monberg, P. W. Wisk, and K. Rottwitt, "Polarization-maintaining higher-order mode fiber module with anomalous dispersion at 1 μm," Opt. Lett. 37, 4170-4172 (2012)