| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Indium Tin Oxide Coated D-Shape Fiber as a Saturable Absorber for Generating a Dark Pulse Mode-Locked Laser |
| B. Nizamani1, S. Salam1,2, A. A. A. Jafry3, N. M. Zahir4, N. Jurami4,5, M. I. M. Abdul Khudus4, A. Shuhaimi5, E. Hanafi1, S. W. Harun1,6** |
1Photonics Engineering Laboratory, Department of Electrical Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia
2Faculty of Information Technology, Imam Ja'afar Al-Sadiq University, Baghdad, Iraq
3Department of Physics, Faculty of Science, Universiti Teknologi Malaysia, 81310 Skudai, Johor, Malaysia
4Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
5Low-Dimensional Materials Research Center, Department of Physics, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia
6Department of Engineering, Faculty of Vocational Studies, Airlangga University, Surabaya, Indonesia
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B. Nizamani, S. Salam, A. A. A. Jafry et al 2020 Chin. Phys. Lett. 37 054202 |
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Abstract A dark pulse mode-locked laser is experimentally demonstrated using the indium tin oxide (ITO) coated D-shape fiber as a saturable absorber (SA). Using the polishing wheel technique, a D-shape single mode fiber was fabricated. A 60-nm-thick layer of ITO was deposited over the D-shape fiber using the electron beam deposition method. The SA has a saturation intensity of 40.32 MW/cm$^{2}$ and a modulation depth of 3.5%. A stable dark pulse mode-locked laser was observed at a central wavelength of 1559.4 nm with repetition rate 0.98 MHz, pulse width 370 ns and signal-to-noise ratio 61 dB.
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Received: 01 February 2020
Published: 25 April 2020
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| PACS: |
42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.70.Hj
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(Laser materials)
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42.60.-v
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(Laser optical systems: design and operation)
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| Fund: Supported by the Ministry of Education of Malaysia (Grant No. LR001A-2016A) and University of Malaya (Grant No. RP039C-18AFR). |
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