Linear-core-array microstructured fibers are fabricated using the modified chemical-vapor desposition and etching method for preparing each core performs, and two D-shape large-scale silica rods are also used in the linear-core-array fiber perform stacking. The supermodes in optical fibers with linearly distributed 23 cores are investigated by using the coupled-mode theory. The coupling field propagation characteristics of the optical fibers are analyzed. The linear-core-array fiber could be used in improving the high-power fiber laser-beam shape, enhancing its quality.
© 2009 Optical Society of America
Fiber Optics and Optical Communications
Original Manuscript: January 5, 2009
Revised Manuscript: February 24, 2009
Manuscript Accepted: February 25, 2009
Published: May 8, 2009
Libo Yuan, Qiang Dai, Fengjun Tian, Tao Zhang, Chunying Guan, and Xiaoliang Zhu, "Linear-core-array microstructured fiber," Opt. Lett. 34, 1531-1533 (2009)