Nanosecond soliton pulse generation by mode-locked erbium-doped fiber laser using single-walled carbon-nanotube-based saturable absorber

We demonstrate a simple and low cost mode-locked erbium-doped fiber laser (EDFL) operating in the nanosecond region using a single-walled carbon nanotube (SWCNT)-based saturable absorber (SA). A droplet of SWCNT solution is applied on the end of a fiber ferrule, which is then mated to another clean...

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Bibliographic Details
Published in:Applied optics (2004) 2012-12, Vol.51 (36), p.8621-8624
Main Authors: Ismail, Mohd Afiq, Harun, Sulaiman Wadi, Zulkepely, Nurul Rozullyah, Nor, Roslan Md, Ahmad, Fauzan, Ahmad, Harith
Format: Article
Language:English
Subjects:
Droplets
Fiber lasers
Nanocomposites
Nanomaterials
Nanostructure
Single wall carbon nanotubes
Solitons
Trains
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Summary:We demonstrate a simple and low cost mode-locked erbium-doped fiber laser (EDFL) operating in the nanosecond region using a single-walled carbon nanotube (SWCNT)-based saturable absorber (SA). A droplet of SWCNT solution is applied on the end of a fiber ferrule, which is then mated to another clean connector ferrule to construct an SA. Then the SA is integrated into a ring EDFL cavity for nanosecond pulse generation. The EDFL operates at around 1570.4 nm, with a soliton-like spectrum with small Kelly sidebands, which confirms the attainment of the anomalous dispersion. It produces a soliton pulse train with a 332 ns width, repetition rate of 909.1 kHz, an average output power of 0.31 mW, and energy of 0.34 nJ at the maximum pump power of 130.8 mW.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.51.008621