| Autor: |
Sun S, Huang M, Wu D, Shen L, Ren H, Hawkins TW, Ballato J, Gibson UJ, Mashanovich GZ, Peacock AC |
| Jazyk: |
angličtina |
| Zdroj: |
Optics letters [Opt Lett] 2022 Apr 01; Vol. 47 (7), pp. 1626-1629. |
| DOI: |
10.1364/OL.451785 |
| Abstrakt: |
A strong Raman enhancement to the four-wave mixing (FWM) conversion efficiency is obtained in a silicon core fiber (SCF) when pumped with a continuous-wave (CW) source in the telecom band. By tapering the SCFs to alter the core diameter and length, the role of phase-matching on the conversion enhancement is investigated, with a maximum Raman enhancement of ∼15 dB obtained for an SCF with a zero dispersion wavelength close to the pump. Simulations show that by optimizing the tapered waist diameter to overlap the FWM phase-matching with the peak Raman gain, it is possible to obtain large Raman enhanced FWM conversion efficiencies of up to ∼2 dB using modest CW pump powers over wavelengths covering the extended telecom bands. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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