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Khan, Sheroz Khan
International Islamic University Malaysia
Electrical & Electronics Engineering

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Investigation of Output Power in Ring CW Fiber Laser Using Graphene Saturable Absorber Ahmed Hamida, Belal Ahmed Hamida; Eltaif, Tawfig; Daniel Bin Mohd Noh, Farhan; Khan, Sheroz Khan
Bulletin of Electrical Engineering and Informatics Vol 8, No 3: September 2019
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/eei.v8i3.1497

Abstract

This paper reported the effect of different coupling ratio in continuous wave fiber laser in a ring cavity configuration. Different coupling ratios of 10/90 and 50/50 were tested. Where the output power may vary depending on the ratio and it can be applied to specific area that requires either high or low output power. In addition, generation of passive Q-switched erbium doped fiber laser (EDFL) using graphene based saturable absorber in ring cavity using different coupling ratio was experimentally investigated. As a result wavelength centered at 1566.62nm is obtain from EDFL cavity. Moreover, the cavity using coupler of 50/50 is capable to achieve Q-switched pulses as compared to the cavity using coupler of 10/90. Where the maximum output power recorded is 336mW with pulse repetition rate of 23.74 kHz. In addition, the pulse width is 3.84µs, and pulse energy is 14.15nJ.
Co-Authors Ahmed Hamida, Belal Ahmed Hamida Daniel Bin Mohd Noh, Farhan Eltaif, Tawfig