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Tunable Q-switched erbium doped fiber laser with graphene oxide paper based saturable absorber

M. H. M. AHMED1, A. M. BANABILA2, A. A. LATIFF2, N. IRAWATI2, N. M. ALI1, S. W. HARUN1,* , H. AROF1

Affiliation

  1. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
  2. Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia

Abstract

We demonstrate a tunable wavelength Q-switched erbium doped fiber laser (EDFL) using a graphene oxide (GO) saturable absorber (SA). The GO solution was prepared using the simplified Hummer’s method, which is then thinly spread into a petri-disk to make a paper-like material. The GO paper is sandwiched between two FC/PC fiber connectors and incorporated into a ring EDFL’s cavity for Q-switching operation. The wavelength tunable operation of the Q-switched laser was obtained with a band-pass filter. The stable Q-switched pulse with a tunable range from 1536 nm to 1563 nm was achieved, covering a wavelength range over ~28 nm. The Q-switched EDFL produced maximum pulse energy of 151 nJ at pump power of 80 mW..

Keywords

Tunable-wavelength, Passively Q-switched laser, Graphene oxide paper.

Citation

M. H. M. AHMED, A. M. BANABILA, A. A. LATIFF, N. IRAWATI, N. M. ALI, S. W. HARUN, H. AROF, Tunable Q-switched erbium doped fiber laser with graphene oxide paper based saturable absorber, Optoelectronics and Advanced Materials - Rapid Communications, 10, 11-12, November–December 2016, pp.791-796 (2016).

Submitted at: Dec. 19, 2015

Accepted at: Nov. 25, 2016