title: Improved N-port optical quasi-circulator by using a pair of orthogonal holographic spatial- and polarization- modules.
abstract: Based on the flexibilities of light beam propagation in three dimensions, we propose an improved N-port optical quasi-circulator by using a pair of orthogonal holographic spatial- and polarization- modules. All optical elements are located in parallel planes that are perpendicular to the optical axis. The number of optical elements is decreased, and a higher performance optical quasi-circulator without crosstalk and polarization mode dispersion can be easily achieved. A prototype of 5-port polarizationindependent optical quasi-circulator operating at a wavelength of 1300nm was assembled and tested to show its validities.
authors.forename: Jing-Heng
authors.initials: JH
authors.lastname: Chen
authors.forename: Po-Jen
authors.initials: PJ
authors.lastname: Hsieh
authors.forename: Jiun-You
authors.initials: JY
authors.lastname: Lin
authors.forename: Der-Chin
authors.initials: DC
authors.lastname: Su