| Autor: |
Das, Bishuddhananda, Majumdar, Angshuman |
| Zdroj: |
Journal of Optics (09728821); Dec2023, Vol. 52 Issue 4, p2168-2175, 8p |
| Abstrakt: |
A theoretical investigation of coupling optics is presented in this paper based on ABCD matrix formulation in order to predict the coupling efficiency involving a laser diode (LD) and some identical single-mode circular core dispersion-shifted fiber (DSF) and dispersion-flattened fiber (DFF) with a cylindrical microlens (CML) in its tip. The authors derive analytical equations for the relevant coupling efficiency by assuming Gaussian distributions of the fields for both the source and the fiber under paraxial approximation. Further, in order to consider the non-Gaussian nature of the field of dispersion managed fibers, we employ spot size of Petermann II in our investigation. The investigations are made for two commonly used wavelengths, namely 1.3 and 1.5 μm. Our suggested technique demands extremely little computing for execution. For stimulation by a LD generating light of wavelength 1.3 μm, the maximum coupling efficiency (η) goes up to 94.41 percent. The proposed formulation also accounts for the limited aperture permitted by the CML. Thus, the analysis should find wide use in the design of CML on the single-mode circular core dispersion-controlled fibers tip to achieve large propagation distance. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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