Erbium-Ytterbium codoped fiber amplifiers

Author

• Wai Yee Chan, Universiti Malaya

Date of Award

1-1-2000

Thesis Type

Masters

Document Type

Thesis

Divisions

Faculty of Science

Department

Department of Physics

Institution

Universiti Malaya

Abstract

The amplification characteristics of an Erbium/Ytterbium codoped fiber amplifier(EYDFA) pumped in both the 800nm and 980nm pump bands is reported. With -3m long Er-Yb fiber, the 813nm pumped-EYDFA shows small-signal gain exceeding 20dB over a 20nm bandwidth in the l.Sµm region where the peak gain of 38.4dB is achieved at 1535nm. A low noise figure of ~3.6d8 is also achieved at 1550nm. However, it is found that 980nm pumped­EYDF A suffers lower gain due to the effect of nonsaturable absorption by Yb³⁺ ions which causes high pump poWer loss, thus degrades the signal amplification in Er³⁺ system. Compared to the same length of erbium-doped fiber amplifier(EDF A) at 813nm pump wavelength, EYDF A demonstrates a higher perfonnance and has potential as a low cost effective optical amplifier.

Initial

snms

Additional Information

Dissertation (M.A) -- Faculty of Science, Universiti Malaya, 2000.

Recommended Citation

Chan, Wai Yee, "Erbium-Ytterbium codoped fiber amplifiers" (2000). Student Works (2000-2009). 301.
https://knova.um.edu.my/student_works_2000s/301

Creative Commons License

This work is licensed under a Creative Commons Attribution-NonCommercial-No Derivative Works 4.0 International License.