Mode-dependent signal delay method

Modal dispersion characterization of multimode optical fibers can be performed using the mode-dependent signal delay method. This method consists of sending optical pulses using different combinations of modes though the multimode optical fiber and measuring the mode group delay at the fiber output. From these measurements, it is possible to estimate the modal dispersion vector, the principal modes, and their corresponding differential mode group delays.

There exist optimal launch modes, minimizing the noise error in the estimation of the fiber modal dispersion vector. These optimal launch modes can be geometrically represented as quasi-orthogonal vectors in a generalized Stokes space. The coordinates of the corresponding generalized Jones vectors are listed in various formats in the following table. 

 

References

  1. I. Roudas, J. Kwapisz, and D. A. Nolan, “Optimal launch states for the measurement of principal modes in optical fibers,” IEEE/OSA J. Lightwave Tech., to appear.
  2. M. Dadras, I. Roudas, and J. Kwapisz, "Mode selection for measuring modal dispersion in Stokes space,” IEEE Photonics Conference (IPC’18), Reston, VA, Oct. 2018. 

 

Data Files

Modes/ Files Mathematica Matlab Excel
3 3.wl

3.mat

3.xlsx
4 4.wl 4.mat 4.xlsx
5 5.wl 5.mat 5.xlsx
 6  6.wl  6.mat 6.xlsx
7 7.wl 7.mat 7.xlsx
8 8.wl 8.mat 8.xlsx
9 9.wl 9.mat 9.xlsx
 10  10.wl 10.mat  10.xlsx
 11 11.wl 11.mat 11.xlsx
 12 12.wl 12.mat 12.xlsx
 13 13.wl 13.mat 13.xlsx
 14 14.wl 14.mat 14.xlsx 
 15 15.wl 15.mat 15.xlsx
16 16.wl 16.mat 16.xlsx
17 17.wl 17.mat 17.xlsx
18 18.wl 18.mat 18.xlsx
19 19.wl 19.mat 19.xlsx
 20 20.wl 20.mat 20.xlsx
21 21.wl  21.mat  21.xlsx
22  22.wl 22.mat  22.xlsx
23  23.wl 23.mat  23.xlsx
24  24.wl 24.mat  24.xlsx
25  25.wl 25.mat  25.xlsx
26  26.wl 26.mat  26.xlsx
27  27.wl 27.mat 27.xlsx
28  28.wl 28.mat  28.xlsx
29  29.wl 29.mat  29.xlsx
30  30.wl 30.mat 30.xlsx
31  31.wl 31.mat 31.xlsx
32  32.wl 32.mat 32.xlsx
33  33.wl 33.mat 33.xlsx
34  34.wl 34.mat 34.xlsx
35  35.wl 35.mat 35.xlsx
36  36.wl 36.mat 36.xlsx
37  37.wl 37.mat 37.xlsx
38  38.wl  38.mat 38.xlsx
39  39.wl 39.mat 39.xlsx
40  40.wl 40.mat 40.xlsx
41 41.wl 41.mat 41.xlsx
42 42.wl 42.mat 42.xlsx
43 43.wl 43.mat 43.xlsx
44 44.wl 44.mat 44.xlsx
45 45.wl 45.mat 45.xlsx
46 46.wl 46.mat 46.xlsx
47 47.wl 47.mat 47.xlsx
48 48.wl 48.mat 48.xlsx
49 49.wl 49.mat 49.xlsx
50 50.wl 50.mat 50.xlsx
51 51.wl 51.mat 51.xlsx
52 52.wl 52.mat 52.xlsx
53 53.wl 53.mat 53.xlsx
54 54.wl 54.mat 54.xlsx
55 55.wl 55.mat 55.xlsx
56 56.wl 56.mat 56.xlsx
57 57.wl 57.mat 57.xlsx
58 58.wl 58.mat 58.xlsx
59 59.wl 59.mat 59.xlsx
60 60.wl 60.mat 60.xlsx