Rare-earth doped fiber lasers have emerged as attractive alternatives to traditional lasers in material processing due to the ruggedness, high efficiencies, and excellent beam quality [1]. The development of pulsed fiber lasers is driven by the fact that specific applications require different peak powers, repetition rates, and pulse energies. Some of the methods of pulsing the lasers completely avoid free-space coupled components and they benefit greatly from the all-fiber robustness. Examples of all-fiber pulsed laser technologies are mode-locking by nonlinear polarization rotation and Q-switching by using custom-made saturable absorber fiber [2]. Gain-switching of a fiber laser is a less-investigated method that makes use of the inherent relaxation oscillations of the fiber laser by fast modulation of the pump [3,4]. The advantage is that only readily available components for a CW laser are required. Gain-switched fiber lasers can deliver high pulse energies and has applications in e.g. supercontinuum generation [4], where the increased peak power reduces the dependence on the zero dispersion wavelength [5].

© 2013 IEEE

PDF Article
More Like This
Highly stable low timing-jitter passively Q- and gain-switched Yb-doped all-fiber laser in a coupled-cavity

Dongchen Jin, Ruoyu Sun, Hongxing Shi, Jiang Liu, and Pu Wang
ATu3A.04 Advanced Solid State Lasers (ASSL) 2013

Gain Switch Laser based on Microstructured Yb-Doped Active Fiber

Rok Petkovšek and Vid Agež
ATu3A.50 Advanced Solid State Lasers (ASSL) 2013

Broadband Yb-doped Fiber Laser System with Gain-Narrowing Compensation

Yuhei Chiba, Hideyuki Takada, Kenji Torizuka, and Kazuhiko Misawa
AM5A.50 Advanced Solid State Lasers (ASSL) 2014


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access Optica Member Subscription