Conclusions

1) Mode coupling depends sensitively on the orientation of the fiber (x, y, z, Q, F), as well as the V number of the fiber (which depends on wavelength of the light).

2) The core diameter of this fiber was 6.03 +/- .022 um.

3) The hypothesis that the intensity of the transmitted light should decrease as the laser is tuned across the LP₂₁ cutoff wavelength cannot be confirmed.

4) It is difficult (maybe impossible) to track the intensity of an individual mode over large changes in V number, due to the wavelength-dependence of mode propagation for any given fiber orientation.

Future Work

1) Explore the properties of different properties.

2) Find a method to isolate individual modes and measure their intensity vs. V dependence.

References

J.A. Buck, Fiber Optics, (Georgia Institute of Technology, 1989)

C.C. Davis, Lasers and Electro-Optics: Fundamentals and Engineering, (Cambridge University Press, 1996).

B.E.A. Saleh and M.C. Teich, Fundamentals of Photonics, (John Wiley & Sons, New York, 1991).

A. Yariv, Optical Electronics, (The Dryden Press, 1985)

Newport Corporation,  Projects in Fiber Optics Application Handbook, (Newport Corporation, 1999).