7 August 2012 Erbium-doped fiber laser passively mode-locked by a position-adjustable graphene saturable absorber
Yu Chen, Chujun Zhao, Zhiteng Wang, Han Zhang, Shuangchun Wen, Jingchao Song
Author Affiliations +
Abstract
We propose a simple method to fabricate graphene saturable absorber (GSA) through drop casting the graphene dispersion prepared by liquid-phase exfoliation of graphite onto quartz plate and realize the passively mode-locked of an Erbium-doped fiber laser by this saturable absorber (SA). In contrast with previous GSAs, due to the incorporation of additional free space alignment from the SA component, we are able to deliberately control the laser radiation spot size and location on GSA, leading to flexibility in mode-locked performance. Finally, we can obtain stable soliton pulse emission with central wavelength at 1564.42 nm, 3 dB bandwidth of 1.02 nm, and pulse duration of 2.89 ps, and also note that soliton parameters (pulse energy, central wavelength, and pulse duration) sensitively depend on the position of GSA, which could be traced back to nonuniformity of saturable absorption from the nonhomogeneous morphology of the as-prepared graphene sample.
© 2012 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2012/$25.00 © 2012 SPIE
Yu Chen, Chujun Zhao, Zhiteng Wang, Han Zhang, Shuangchun Wen, and Jingchao Song "Erbium-doped fiber laser passively mode-locked by a position-adjustable graphene saturable absorber," Optical Engineering 51(8), 084203 (7 August 2012). https://doi.org/10.1117/1.OE.51.8.084203
Published: 7 August 2012
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CITATIONS
Cited by 5 scholarly publications.
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KEYWORDS
Graphene

Fiber lasers

Mode locking

Solitons

Picosecond phenomena

Quartz

Saturable absorption

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