Passively Q-Switched Pulses Generation from Erbium-Doped Fiber Laser Using Lutetium Oxide as Saturable Absorber




Q-switched, erbium-doped fiber laser, Lutetium oxide, fiber laser, saturable absorber.


In this paper, a configuration of a passive Q-switched Erbium-doped fiber laser (EDFL) using a Lutetium Oxide (Lu2O3) thin film as a saturable absorber (SA) is experimentally implemented to generate high pulse energy with a high signal to noise ratio. A stable Q-switched pulse train is initiated at the input pump power of 30.442 mW, and a maximum pulse energy of 16.11 nJ is obtained at an output power of 0.97 mW, which confirms the stability of the pulses. It was possible to increase the repetition rate of the Q-switched laser from 31.25 to 60.2 kHz as the pump power was raised from 30.442 mW to 71.652 mW. Moreover, the pulse width decreased from 11.4 µs to 4.27 µs and 66.4 dB of the received signal-to-noise ratio at the radio frequency spectrum was achieved.


Author Biographies

N. A. Mohamed, International Islamic University Malaysia

Department of Electrical Engineering, Faculty of Engineering, 

B. A. Hamida, International Islamic University Malaysia

​Assistant Professor  Electrical and Computer Department, Kulliyyah of Engineering

T. Eltaif, Xiamen University Malaysia

Department of Electrical and Electronics Engineering, Xiamen University Malaysia, Jalan Sunsuria,  Bandar

A. A. A. Jafry, Universiti Teknologi Malaysia

Department of Physics, Faculty of Science, 

S. W. Harun, University of Malaya

Department of Electrical Engineering, Faculty of Engineering


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How to Cite

Mohamed, N. A. ., Hamida, B., Tawfig, Jafry, A. A. A., & Harun, S. W. . (2021). Passively Q-Switched Pulses Generation from Erbium-Doped Fiber Laser Using Lutetium Oxide as Saturable Absorber. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 20(1), 118–125.



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