Abstract
A novel polarization-maintaining large-mode-area optical fiber is proposed
in this paper. Anisotropic microstructured core in the fiber is realized by
the inclusion of air holes arranged in rectangular lattice. An updoped silica
background is introduced to compensate the reduction of the effective core
index induced by the air holes. Numerical investigation demonstrated high
birefringence on the order of 10<sup>-3</sup> and hexagonal profile mode fields with mode areas as large as of
161.2 and 118.0 <i>µ</i>m<sup>2</sup>, at the wavelength of 1.55 <i>µ</i>m, for <i>x</i>- and <i>y</i>-polarized
states, respectively, can be achieved in one such fiber. In contrast to polarization-maintaining
optical fibers reported previously, the birefringence of the fiber is increasing
with the increase of frequency. We also proposed a novel kind of single-polarization
single-mode optical fibers based on the design, and one such fiber presents
mode area as large as 119 <i>µ</i>m<sup>2</sup> and operating wavelength as broad as 127 nm with confinement
loss below 0.1 dB/km.
© 2008 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription