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Q‐switching pulses generation with samarium oxide film saturable absorber
Author(s) -
Zulkipli Nur F.,
Batumalay Malathy,
Samsamnun Farina S. M.,
Mahyuddin Mohamad B. H.,
Izam Tengku F. T. M. N.,
Khudus Muhammad I. M. A.,
Harun Sulaiman W.
Publication year - 2020
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.32118
Subject(s) - materials science , saturable absorption , fiber laser , pulse width modulation , q switching , erbium , pulse (music) , optoelectronics , laser , optics , oxide , power (physics) , doping , physics , wavelength , quantum mechanics , detector , metallurgy
Abstract Q‐switching pulses generation in an erbium‐doped fiber laser (EDFL) was demonstrated by using a samarium oxide (Sm 2 O 3 ) film as a saturable absorber (SA) for the first time. The passively Q‐switched EDFL operated stably at 1567 nm with tunable repetition rates, ranging from 47 to 66 kHz with the increase in pump power from 51.0 to 88.1 mW. At 88.1 mW pump power, the maximum pulse energy and the minimum pulse width were obtained at 26 nJ and 5.6 μs, respectively. These results demonstrated that the proposed Sm 2 O 3 SA is viable for the construction of a flexible and reliably stable Q‐switched pulsed fiber laser in the 1.5 μm region.