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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 3 — Feb. 2, 2009
  • pp: 1268–1273

Control of hollow-core photonic bandgap fiber ellipticity by induced lateral tension

Gilhwan Kim, Taiyong Cho, Kyujin Hwang, Kwanil Lee, Kyung S. Lee, and Sang Bae Lee  »View Author Affiliations

Optics Express, Vol. 17, Issue 3, pp. 1268-1273 (2009)

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We describe the fabrication of elliptical hollow-core photonic bandgap fibers (EC-PBGFs). It was shown that the aspect ratio of the hollow core can be controlled by tuning the negative pressure in the space between the intermediate preform cane and outer jacketing tube, and by placing this preform assembly off-center in the furnace, resulting in lateral tension during the final draw. Modal birefringences of fabricated PBGFs with different aspect ratio were measured using a Sagnac loop interferometer. For the elliptical hollow core PBGF with aspect ratio of 2.34, the modal birefringence was measured to be about 4.6×10-2 at 1,550nm.

© 2009 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication
(060.2400) Fiber optics and optical communications : Fiber properties
(120.5790) Instrumentation, measurement, and metrology : Sagnac effect

ToC Category:
Photonic Crystal Fibers

Original Manuscript: September 26, 2008
Revised Manuscript: December 23, 2008
Manuscript Accepted: January 12, 2009
Published: January 21, 2009

Gilhwan Kim, Taiyong Cho, Kyujin Hwang, Kwanil Lee, Kyung S. Lee, and Sang Bae Lee, "Control of hollow-core photonic bandgap fiber ellipticity by induced lateral tension," Opt. Express 17, 1268-1273 (2009)

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