High signal-to-noise ratio Q-switching erbium doped fiber laser pulse emission utilizing single layer trivial transfer graphene film saturable absorber

• Main Authors: Lau, K. Y., Abd Latif, Amirah, Abu Bakar, Muhammad Hafiz, Mahdi, Mohd Adzir
• Format: Article
• Language: English
• Published: Penerbit UTM Press 2016
• Online Access: http://psasir.upm.edu.my/id/eprint/47422/1/High%20signal-to-noise%20ratio%20Q-switching%20erbium%20doped%20fiber%20laser%20pulse%20emission%20utilizing%20single%20layer%20trivial%20transfer%20graphene%20film%20saturable%20absorber.pdf; http://psasir.upm.edu.my/id/eprint/47422/; http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/7478

This paper presents the high signal-to-noise ratio (SNR) Q-switched erbium-doped fiber laser pulse emission using a commercial single layer graphene (SLG) film as a saturable absorber (SA). A sandwiched-type structure with transferred single layer SLG film between two fiber ferrules is formed to function as the SA. Q-switched pulse emission with repetition rate from 47.25 kHz to 67.39 kHz and round-trip time per oscillation from 7.42 µs to 10.36 µs are obtained from the laser cavity set-up. The SNR of 62.64 dB shows a good quality of pulse generation using the SLG film as SA. The effortless production of SLG is enabling factor to produce fast fabrication and low cost SA for application in Q-switched pulsed fiber lasers.