| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5007296 | Optics & Laser Technology | 2018 | 7 Pages |
Abstract
A passively Q-switched fiber laser using a Saturable Absorber (SA) fabricated from a new Poly (N-vinyl Carbazole) - Polypyrrole/Graphene Oxide (PNVC-PPy/GO) nanocomposite material deposited on a tapered fiber is proposed and demonstrated. The PNVC-PPy/GO composition is deposited along a 3 mm length of the 6.5 cm tapered fiber which has a tapered waist of 8 µm. Q-switched pulses are obtained with repetition rates of 25.15-42.7 kHz and pulse widths of 5.74-2.48 μs over a pump power range of 12.8-40.0 mW. A maximum average power of 0.19 mW and pulse energy of 4.43 nJ are also observed. The proposed Q-switched maintains advantages of a simple design and low fabrication cost while at the same time generating high quality Q-switched pulses.
Keywords
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Physical Sciences and Engineering
Engineering
Electrical and Electronic Engineering
Authors
H. Ahmad, M.J. Faruki, A.A. Jasim, S.I. Ooi, K. Thambiratnam,