Mode-locked Yb-doped all-fiber laser based on in-fiber acoustooptic modulation

Abstract

Abstract:We show what we believe is the first demonstration of an ytterbium-doped strictly all-fiber active mode-locking laser. The active control of the laser is based on in-fiber amplitude modulation at 11 MHz, which is achieved by using an all-fiber acoustooptic superlattice modulator driven by standing acoustic waves. In our experiments, the laser was operated at 1091.3 nm and had two stable regimes producing either a train of mode-locked single pulses or a train of pulse pairs. Best results for the mode-locked train of single pulses were 740 ps of time width and 26 mW of average power, at a pump power of 480 mW.

Q‐switched and modelocked all‐fiber lasers based on advanced acousto‐optic devices

“…Future work includes the optimization of the techniques presented here and the development of new infiber modulation devices [75], as well as translating these results to other REVIEW ARTICLE 419 lasing wavelengths that could be useful for different applications [76]. Specifically, in the ML lasers presented, we have identified the relatively narrow modulator bandwidth of the AOSLM as one of the key limiting factors that precludes reaching narrower pulses.…”

Review on recent progress on Yb-doped fiber laser in a variety of oscillation spectral ranges

“…In fact, there are much more exciting and important works that have been devoted to ytterbium doped fiber lasers. There has been growing interest in YDFL that operates in pulsed regime, especially with ultra short pulse width could be widely used in laser processing, medicine, supercontinuum generation and so on [58][59][60][61][62][63][64][65][66][67]. It is to be noted that YDFL that operates in CW regime could also be developed for further scientific use, for example, frequency doubling to blue or yellow, and be employed as pump source for 2 µm band mid infrared radiation generation [10,[68][69][70][71].…”

Actively Q-switched mode-locked Yb-doped fiber laser with high mode-locking contrast

“…Besides, Q switching operation is another focus in YDFLs since the relatively long upper state life time of Yb ions can help the storage of energy from effi cient diode pumping sources [24,25]. For generating 1 The article is published in the original.…”