Optical fiber with plurality of air holes and stress rods

Details Optical fiber with plurality of air holes and stress rods Optical fiber with plurality of air holes and stress rods

2006-05-19

2008-08-12

Font, Frank G (Department: 2883)

Optical waveguides

Optical fiber waveguide with cladding

Utilizing nonsolid core or cladding

C385S123000, C385S124000, C385S126000, C385S127000, C385S128000, C385S141000, C385S142000, C385S143000, C385S144000, C385S145000

Reexamination Certificate

active

07412142

ABSTRACT:
An optical fiber comprising: (i) a silica based passive core having a first index of refraction n1; (ii) a silica based cladding surrounding the core and having a second index of refraction n2, such that n1>n2, said cladding having at least one stress rod and at least one air hole extending longitudinally through the length of said optical fiber; and (iii) wherein said optical fiber supports a single polarization mode or poses polarization maintaining properties within the operating wavelength range.

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patent: 2006/0204195 (2006-09-01), Kurosawa et al.
“Polarization-Maintaining Fibers and Their Applications”; Journal of Lightwave Technologies, vol. Lt-4, No. 8, Aug. 1986; Juichi Noda, Katsunari Okamoto and Yutakara Sasaki.
“Birefringence Caused by Thermal Stress in Elliptically Deformed Core Optical Fibers”, IEEE Journal of Quantum Electronics, vol. QE-18, No. 11, Nov. 1982; Jun-Ichi Sakai and Tatsuya Kimura.

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