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
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.
. [J]. 中国物理快报, 2020, 37(5): 54202-.
B. Nizamani, S. Salam, A. A. A. Jafry, N. M. Zahir, N. Jurami, M. I. M. Abdul Khudus, A. Shuhaimi, E. Hanafi, S. W. Harun. Indium Tin Oxide Coated D-Shape Fiber as a Saturable Absorber for Generating a Dark Pulse Mode-Locked Laser. Chin. Phys. Lett., 2020, 37(5): 54202-.
2020, Vol. 37 
