关键词: 纤维与波导光学, 宽带光源, 掺铒光纤, 放大的自发辐射, 双程结构

Abstract:

ASE broadband light source based on erbium-doped fiber (EDF), as an excellent broadband light source, has attracted many people’s attention. The output spectral characteristics of ASE broadband light source based on erbium-doped fiber (EDF) with single- and double-pass configurations are respectively investigated experimentally. With the central pump wavelength of 1480nm, the influences of EDF length and pump power on output spectral width and flatness are studied for both the single- and double-pass configuration ASE sources. It is found that the power of ASE source located in the L-band, especially in the wavelength range of 1570-1620nm, for the double-pass configuration may be enhanced, giving a wider and flatter spectrum in whole C- and L-bands by comparing to the output spectra for the single-pass configuration. All the experimental results will be helpful for the developments of ASE broadband light source.

Key words: fiber and waveguide optics, broadband light source, erbium-doped fiber, amplified spontaneous emission, double-pass