Gain characteristics of quantum dot fiber amplifier based on asymmetric tapered fiber coupler |
| |
| Affiliation: | 1. The Key Lab of Specialty Fiber Optics and Optical Access Network, SCIE, Shanghai University, 200072 Shanghai, China;2. Department of Photonics Engineering, Technical University of Denmark, Lyngby 2800, Denmark;1. Nassiriya Nanotechnology Research Laboratory (NNRL), Physics Department, Science College, Thi-Qar University, Nassiriya, Iraq;2. Physics Department, Science College, Al-Mustansiriyah University, Baghdad, Iraq;1. Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications, South China Normal University, Guangzhou, Guangdong 510006, China;2. Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices & Guangdong Provincial Engineering Technology Research Center for Microstructured Functional Fibers and Devices, South China Normal University, Guangzhou, Guangdong 510006, China;3. State Key Laboratory of Luminescent Materials and Devices (SKLLMD), South China University of Technology, Guangzhou 510640, China;4. Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, Shenzhen University, 518060, China;5. School of Physics and Electronic Information, Huaibei Normal University, Huaibei, Anhui 235000, China;1. School of Science, Xi''an University of Posts and Telecommunications, Xi''an 710121, China;2. Shaanxi Provincial Center for Regenerative Medicine and Surgical Engineering, The First Affiliated Hospital of Xi''an Jiaotong University, Xi’an 710061, China;3. School of Life Science and Technology, Xi''an Jiaotong University, Xi’an 710061, China;1. Photonics Research Centre, Universiti Malaya, 50603 Kuala Lumpur, Malaysia;2. Physics Dept., Faculty of Science, Universiti Malaya, 50603 Kuala Lumpur, Malaysia;3. Department of Physics, Faculty of Science and Technology, Airlangga University, Surabaya 60115, Indonesia |
| |
| Abstract: | We theoretically analyzed the gain characteristics of an integrated semiconductor quantum dot (QD) fiber amplifier (SQDFA) by using a 2 × 2 tapered fiber coupler with a PbS QD-coated layer. The asymmetric structure of the fiber coupler is designed to have a maximum working bandwidth around 1550-nm band and provide a desired optical power ratio of the output signals. By using 600 mW of 980-nm pump, 10 dB gain of a 1550-nm signal is estimated with the gain efficiency of 4.5 dB/cm. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
