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| Content Provider | IET Digital Library |
|---|---|
| Author | Harun, Sulaiman Wadi Sabran, Muhamad Burhan Shah Azooz, Salam Mahdi Zulkifli, Ahmad Zarif Ismail, Mohd Afiq Ahmad, Harith |
| Abstract | Q-switched and mode-locked erbium-doped fibre lasers (EDFLs) are demonstrated by using non-conductive graphene oxide (GO) paper as a saturable absorber (SA). A stable and self-starting Q-switched operation was achieved at 1534.4 nm by using a 0.8 m long erbium-doped fibre (EDF) as a gain medium. The pulse repetition rate changed from 14.3 to 31.5 kHz, whereas the corresponding pulse width decreased from 32.8 to 13.8 µs as the pump power increased from 22 to 50.5 mW. A narrow spacing dual-wavelength Q-switched EDFL could also be realised by including a photonics crystal fibre and a tunable Bragg filter in the setup. It can operate at a maximum repetition rate of 31 kHz, with a pulse duration of 7.04 µs and pulse energy of 2.8 nJ. Another GOSA was used to realise mode-locked EDFL in a different cavity consisting of a 1.6 m long EDF in conjunction with 1480 nm pumping. The laser generated a soliton pulse train with a repetition rate of 15.62 MHz and pulse width of 870 fs. It is observed that the proposed fibre lasers have a low pulsing threshold pump power as well as a low damage threshold. |
| Starting Page | 208 |
| Ending Page | 214 |
| Page Count | 7 |
| Volume Number | 2015 |
| e-ISSN | 20513305 |
| Issue Number | Issue 6, Jun (2015) |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/joe/2015/6 |
| Alternate Webpage(s) | https://digital-library.theiet.org/content/journals/10.1049/joe.2014.0321 |
| Journal | The Journal of Engineering |
| Publisher | The Institution of Engineering and Technology |
| Publisher Date | 2015-04-07 |
| Access Restriction | Open |
| Rights License | Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0/) |
| Subject Keyword | Bragg Gratings Cavity Design of Specific Laser System Distance 0.8 M to 1.6 M Echelles Energy 2.8 NJ Erbium Erbium-doped Fibre Lasers Fibre Laser Fibre Lasers And Amplifier Frequency 14.3 KHz to 31.5 KHz Gain Medium Graphene Gratings Holey Fibre Laser Beam Modulation Laser Cavity Resonator Laser Mode Locking Laser Resonator And Cavities Low Damage Threshold Mode Locking And Tuning Mode-locking Pulse Generation Nonconductive Graphene Oxide Paper Optical Coatings And Filter Optical Filter Optical Pulse Generation Optical Pumping Optical Saturable Absorption Optical Saturation And Related Effect Optical Solitons Optical Transient Phenomena Optical Tuning Paper Photonic Bandgap Material Photonic Crystal Photonics Crystal Fibre Power 22 MW to 50.5 MW Pulse Repetition Rate Pulsing And Switching Pump Power Q Switching Saturable Absorber Self-induced Transparency Self-starting Q-switched Operation Soliton Pulse Train Spectral And Other Filter Threshold Pump Power Tunable Bragg Filter Ultrafast Optical Technique Wavelength 1534.4 Nm to 1480 Nm |
| Content Type | Text |
| Resource Type | Article |
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