Amplification Technologies of Single-Frequency Lasers

  • Zhongmin Yang
  • Can Li
  • Shanhui Xu
  • Changsheng Yang
Part of the Optical and Fiber Communications Reports book series (OFCR, volume 8)


Up to now, we have already discussed the technologies concerning the single-frequency fiber cavity, which can be engineered to realize various performance targeting a vast number of applications. Nevertheless, one of the most important performance, i.e., the output power, is yet to be scaled for many applying occasions, even though heavily doped active fiber can enable watt-level output power from a single resonator. Therefore, extra amplification of the single-frequency laser is indispensable to further booster its power. To this end, a common method is to implement the double-clad fiber-based master oscillation power amplifier, which has a similar pumping scheme with that of the fiber oscillator while without the cavity design. In this chapter, we first discuss the significance of amplifying single-frequency lasers and then introduce the principle of the amplifier scheme. After that, the structure of a general fiber amplifier is introduced in terms of the double-clad fiber technology and the cladding pump-coupled technology. Finally, the limitation factors of amplifying single-frequency lasers in optical fiber are discussed.


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Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Zhongmin Yang
    • 1
  • Can Li
    • 2
  • Shanhui Xu
    • 1
  • Changsheng Yang
    • 1
  1. 1.State Key Laboratory of Luminescent Materials and Devices and Institute of Optical Communication MaterialsSouth China University of TechnologyGuangzhouChina
  2. 2.Department of Electrical and Electronic EngineeringThe University of Hong KongHongkongChina

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