2-μm switchable, tunable and power-controllable dual-wavelength fiber laser based on parallel cavities using 3?×?3 coupler

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• 作者：Wei Yang ; Ping Lu ; Shun Wang ; Deming Liu ; Jiangshan Zhang
• 刊名：Applied Physics B: Lasers and Optics
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：120
• 期：2
• 页码：349-354
• 全文大小：2,774 KB
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• 作者单位：Wei Yang (1)
  Ping Lu (1)
  Shun Wang (1)
  Deming Liu (1)
  Jiangshan Zhang (2)
  
  1. School of Optical and Electronic Information, National Engineering Laboratory for Next Generation Internet Access System, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan, 430074, Hubei, China
  2. School of Electronic Infromation and Communications, Huazhong University of Science and Technology, No. 1037 Luoyu Road, Wuhan, 430074, Hubei, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  Physical Chemistry
  Laser Technology and Physics and Photonics
  Quantum Optics, Quantum Electronics and Nonlinear Optics
  Optical Spectroscopy and Ultrafast Optics
  Physics and Applied Physics in Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1432-0649

文摘

We demonstrate a switchable, tunable and power-controllable dual-wavelength fiber laser in 2-μm region based on parallel cavities using a 3?×?3 coupler. The laser topology is based on the parallel connection of fiber Bragg gratings (FBGs) using 3?×?3 coupler which act as two individual cavities, so that the dual wavelengths are tunable and switchable by adjusting the center wavelengths of FBGs and the cavity losses, respectively. With suitable cavity losses and input pumping power, we can obtain a 2-μm switchable single- or dual-wavelength fiber laser. The proposed configuration has very good application prospects in the fields of atmospheric transmission, gas sensing, lidar and new wavelength-division-multiplexed fiber communication systems.