Abstract
An experimental comparative study between two wide-band wavelength-tunable erbium doped fiber ring lasers (EDFRLs) with the same active fiber length but with two different pumping configuration (forward unidirectional pumping and symmetric bidirectional pumping) is reported in this paper. Both fiber lasers cover almost the whole C-band and L-band with a single setup laser. The signal wavelength can be tuned in a wide range of 60 nm with the two presented lasers. Nevertheless, experimental results verify that a higher output power is obtained with the bidirectional pump configuration.
Highlights
Erbium–doped fiber lasers (EDFL) have been applied both sensing and telecommunication fields (wavelength-division multiplexing, fiber-optic sensors, optical spectroscopy, etc) due to their potential characteristics
Erbium–doped fiber lasers (EDFL) have been applied both sensing and telecommunication fields due to their potential characteristics
A sample of the experimental results of the output optical spectrum of both erbium doped fiber ring lasers (EDFRLs) working in different signal wavelengths for a total pump power of 600mW at 1480nm are shown in Fig. 2(a) and Fig. 2(b)
Summary
Erbium–doped fiber lasers (EDFL) have been applied both sensing and telecommunication fields (wavelength-division multiplexing, fiber-optic sensors, optical spectroscopy, etc) due to their potential characteristics. Tunable EDFRL can cover the conventional wavelength C-band that matches well to the gain range of the EDF. An experimental comparative study between two wide-band wavelength-tunable EDFRLs covering the C-band and L-band, with the same length of the active fiber but with two different pumping configurations (forward unidirectional pumping and symmetric bidirectional pumping) is presented.
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