TY - JOUR
T1 - An eye-safe, SBS-free coherent fiber laser LIDAR transmitter with Millijoule energy and high average power
AU - Akbulut, Mehmetcan
AU - Kotov, Leonid
AU - Wiersma, Kort
AU - Zong, Jie
AU - Li, Maohe
AU - Miller, Andy
AU - Chavez-Pirson, Arturo
AU - Peyghambarian, Nasser
N1 - Publisher Copyright:
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
PY - 2021/1
Y1 - 2021/1
N2 - We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3-5 kHz repetition rate operation of the current system.
AB - We report on an eye-safe, transform-limited, millijoule energy, and high average power fiber laser. The high gain and short length of the NP phosphate-glass fibers enable the SBS-free operation with kW level peak power. The output energy is up to 1.3 mJ, and the average power is up to 23 W at an 18 kHz repetition rate with 600 ns pulses (peak power > 2.1 kW). The PER is ≈16 dB and the M2 of the beam is 1.33 × 1.18. The coherent LIDAR Figure Of Merit (FOM) is 174 mJ*sqrt(Hz), which to our knowledge is the highest reported for a fiber laser. We also report 0.75 mJ energy and >3.7 kW peak power with down to 200 ns pulses and up to 1.21 mJ energy with a 3-5 kHz repetition rate operation of the current system.
KW - Coherent LIDAR
KW - Eye-safe pulsed fiber laser
KW - Fiber laser
KW - High energy fiber laser
KW - SBS-free fiber laser
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U2 - 10.3390/photonics8010015
DO - 10.3390/photonics8010015
M3 - Article
AN - SCOPUS:85099744692
SN - 2304-6732
VL - 8
SP - 1
EP - 7
JO - Photonics
JF - Photonics
IS - 1
M1 - 15
ER -