TY - JOUR
T1 - All-in-one fiber laser based on a liquid crystal transducer
AU - Lei, Xinyue
AU - Wieschendorf, Christoph
AU - Firth, Josiah
AU - Ladouceur, Francois
AU - Silvestri, Leonardo
AU - Fuerbach, Alex
PY - 2019/9/1
Y1 - 2019/9/1
N2 - We report a new method of generating continuous-wave (cw) radiation, Q-Switched as well as mode-locked laser pulses from a single linear fiber laser cavity. The three operating modes can be selected by the electric signal that is applied to an intracavity liquid crystal (LC) transducer cell. In addition, this is the first demonstration of using an LC modulator as an active mode-locking device in a fiber laser oscillator to date. In the proof-of-principle experiments presented here, the Q-Switched laser pulses with a duration of 1.3 µs , a maximum energy of 2.7 µJ , and a peak power of 1.93 W were generated at low repetition rates ranging from 0.2 to 6 kHz. In mode-locked operation, pulse trains with repetition rates as high as 944.5 kHz and a shorter duration of 65 ns were achieved. Finally, a slight modification of the LC cell allows for a direct comparison between amplitude modulation (AM) and frequency modulation (FM) mode-locking.
AB - We report a new method of generating continuous-wave (cw) radiation, Q-Switched as well as mode-locked laser pulses from a single linear fiber laser cavity. The three operating modes can be selected by the electric signal that is applied to an intracavity liquid crystal (LC) transducer cell. In addition, this is the first demonstration of using an LC modulator as an active mode-locking device in a fiber laser oscillator to date. In the proof-of-principle experiments presented here, the Q-Switched laser pulses with a duration of 1.3 µs , a maximum energy of 2.7 µJ , and a peak power of 1.93 W were generated at low repetition rates ranging from 0.2 to 6 kHz. In mode-locked operation, pulse trains with repetition rates as high as 944.5 kHz and a shorter duration of 65 ns were achieved. Finally, a slight modification of the LC cell allows for a direct comparison between amplitude modulation (AM) and frequency modulation (FM) mode-locking.
KW - electrooptic transducers
KW - Liquid crystals
KW - mode locked lasers
KW - optical fiber lasers
KW - Q-switched lasers
UR - http://www.scopus.com/inward/record.url?scp=85071507643&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/DP160104625
U2 - 10.1109/LPT.2019.2929553
DO - 10.1109/LPT.2019.2929553
M3 - Article
AN - SCOPUS:85071507643
SN - 1041-1135
VL - 31
SP - 1409
EP - 1412
JO - IEEE Photonics Technology Letters
JF - IEEE Photonics Technology Letters
IS - 17
ER -