The effect of pump wavelength, power and direction on gain and noise figure in double-pass/stage TDFAs

YÜCEL M., Dincer A.

Optoelectronics and Advanced Materials, Rapid Communications, cilt.17, sa.7-8, ss.301-310, 2023 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 17 Sayı: 7-8
  • Basım Tarihi: 2023
  • Dergi Adı: Optoelectronics and Advanced Materials, Rapid Communications
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex
  • Sayfa Sayıları: ss.301-310
  • Anahtar Kelimeler: Backward pumping, Bidirectional pumping, Double-pass, Forward pumping, Thulium-doped fiber amplifier
  • Gazi Üniversitesi Adresli: Evet

Özet

The effects of pump laser wavelength, power, and direction on optical gain and noise figures in double pass/stage TDFA setups were investigated. For this purpose, four different setups with different pumping types are presented comparatively along the S-band. TDF lengths have been optimized and setups are aimed to be similar. By comparing the pumps with wavelengths of 800, 1050, 1400, and 1560 nm, which are widely used in the literature, the most efficient pump wavelength was determined. The effect of pump direction was investigated by using forward, backward, and bidirectional pumping methods. Then, the setups were compared and the pump power and pumping method were determined with the most efficient wavelength. Finally, the PCE values of all designs were examined and compared.