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Graded index fiber waveguides with borosilicate composition: fabrication techniques.

W G French, G W Tasker, J R Simpson

|February 19, 2010

Summary

Fabrication of graded refractive index fibers using SiO(2)-B(2)O(3) is well controlled. These optical fibers exhibit low loss and low dispersion, making them suitable for various applications.

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Area of Science:

Materials Science
Optical Engineering
Fiber Optics

Background:

Graded refractive index (GRIN) fibers offer unique light-guiding properties.
Controlling the refractive index profile is crucial for fiber performance.
Silica-boria (SiO(2)-B(2)O(3)) glasses are promising for fiber fabrication.

Purpose of the Study:

To demonstrate controlled fabrication of SiO(2)-B(2)O(3) GRIN fibers.
To characterize the optical properties of the fabricated fibers, focusing on loss and dispersion.

Main Methods:

Utilized controlled fabrication techniques for SiO(2)-B(2)O(3) composition.
Measured fiber loss at 900 nm and 1060 nm.
Measured fiber dispersion at 900 nm, including material dispersion.

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Main Results:

Fabrication process for SiO(2)-B(2)O(3) GRIN fibers demonstrated good control.
Achieved low optical loss below 3 dB/km at both 900 nm and 1060 nm.
Observed low total dispersion of 260 psec/km at 900 nm, with material dispersion at 200 psec/km.

Conclusions:

Well-controlled fabrication of SiO(2)-B(2)O(3) GRIN fibers is achievable.
The fabricated fibers possess excellent low-loss and low-dispersion characteristics.
These results indicate potential for these fibers in optical communication and sensing applications.