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Fundamental and harmonic mode-locking in erbium-doped fiber laser based on graphene saturable absorber
Authors:Jaroslaw Sotor  Grzegorz Sobon  Karol Krzempek  Krzysztof M. Abramski
Affiliation:1. Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50630, Malaysia;2. Fakulti Teknologi Kejuruteraan Elektrik & Elektronik, Universiti Teknikal Malaysia Melaka, 76100 Hang Tuah Jaya, Melaka, Malaysia;3. Computational Optics Research Group, Advanced Institute of Materials Science, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;4. Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Viet Nam;5. Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115 Indonesia;1. Department of Electrical, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Photonics Research Centre, University of Malaya, 50603 Kuala Lumpur, Malaysia;3. Fiber Optics & Photonics Division, Central Glass and Ceramic Research Institute, 700032 Kolkata, India;1. Shandong Provincial Key Laboratory of Optics and Photonic Device, College of Physics and Electronics, Shandong Normal University, Jinan 250014, China;2. Key Laboratory of Transparent and Opto-functional Inorganic Materials, Shanghai, Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, China;1. School of Computer and Information Engineering, Beijing Technology and Business University, Beijing, 100048, PR China;2. School of Science, Beijing Technology and Business University, Beijing, 100048, PR China;3. School of Electronics and Information Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China;4. Beijing Key Laboratory of Big Data Technology for Food Safety, Beijing Technology and Business University, Beijing, 100048, PR China;1. Photonics Research Center, University of Malaya, 50603 Kuala Lumpur, Malaysia;2. Department of Electrical Engineering UTMspace, Universiti Teknologi Malaysia, 54100 Kuala Lumpur, Malaysia;1. Wireless and Photonics Networks Research Centre, Faculty of Engineering, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;2. Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia;3. Faculty of Engineering, Multimedia University, 63100 Cyberjaya, Selangor, Malaysia
Abstract:Graphene-based passively mode-locked erbium doped fiber laser is presented. Multilayer graphene was obtained by mechanical exfoliation of pure graphitic block and deposited on the fiber ferrule. The mode-locking performance was investigated under various laser pumping conditions. The laser could operate at fundamental repetition rate of 16.34 MHz with 844 fs pulse duration and 30 mW average output power. Also harmonic-mode locking of the laser is demonstrated. 294 and 800 MHz repetition rates were obtained (corresponding to the 18th and 49th harmonic of the fundamental repetition frequency, respectively) with nearly transform-limited pulses.
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