Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5007259 | Optics & Laser Technology | 2017 | 7 Pages |
Abstract
We demonstrate a passively mode-locked fiber laser incorporating graphene thin film (GTF) as saturable absorber (SA). The SA is fabricated by sandwiching the GTF between two single mode fiber ferrules through a fiber adaptor. The transmission loss at 1560Â nm and non-linear saturation absorption modulation depth for GTF-SA are 0.8Â dB and 2.90%, respectively. An erbium-doped fiber laser cavity is constructed to verify the functionality of GTF-SA and is designed to have net anomalous dispersion. It generates large spectral width of 4.99Â nm with pulse repetition rate of 9.655Â MHz and pulse width of 670Â fs. Net anomalous dispersion and time bandwidth product higher than the sech2 transform-limited pulse validate the experimental result. In short, we demonstrate high performance GTF-SA that is able to generate ultrafast pulse duration in femtosecond range effortlessly with simple and green SA fabrication procedures.
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Engineering
Electrical and Electronic Engineering
Authors
K.Y. Lau, F.D. Muhammad, A.A. Latif, M.H. Abu Bakar, Z. Yusoff, M.A. Mahdi,