Abstract
A photonic bandgap fiber collimator with C-lens was proposed. The photonic crystal fiber end face does not have reflection, so the transform matrix will change. From the general model of Gaussian-beam imaging, using the theory of matrix optics, the matrix optics was calculated in meridian plane and sagittal plane respectively. Combined with practical applications in photonic bandgap fiber and C-lens related parameters, the influence of the distance between fiber tail and C-lens and the influence of the parameter of the C-lens on working distance and beam waist diameter of collimator were both stimulated and analyzed. The results of the analysis in new model show that the influence of the C-lens tile for meridian plane and sagittal plane was similar, and the Gaussian-beam ellipse was smaller compared with ordinary fiber. The result may direct the design of photonic bandgap fiber collimator and the design of optical device with photonic bandgap fiber collimator.
| Original language | English |
|---|---|
| Pages (from-to) | 1517-1522 |
| Number of pages | 6 |
| Journal | Beijing Hangkong Hangtian Daxue Xuebao/Journal of Beijing University of Aeronautics and Astronautics |
| Volume | 43 |
| Issue number | 8 |
| DOIs | |
| State | Published - Aug 2017 |
Keywords
- Beam waist diameter
- C-lens
- Fiber collimator
- Photonic bandgap fiber
- Working distance
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