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A comparison of far-field methods for determining mode field diameter of single-mode fibers using both Gaussian and Petermann definitions

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4 Author(s)
Drapela, T.J. ; Nat. Inst. of Standards & Technol., Boulder, CO, USA ; Franzen, D.L. ; Cherin, A.H. ; Smith, R.J.

An interlaboratory comparison is presented of far-field measurement methods for determining mode field diameter of single-mode fibers. The comparison was conducted by member of the Electronic Industries Association. Measurements were made on dispersion-unshifted and dispersion-shifted fibers at 1300 and 1550 nm. Results were calculated using both Petermann and Gaussian definitions. The Petermann definition gave better agreement than the Gaussian in all cases. A systematic offset of 0.52 μm was observed between methods when applied to dispersion-shifted fibers. Such an offset may be caused by limited angular collection

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Lightwave Technology, Journal of  (Volume:7 ,  Issue: 8 )