An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power
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...
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MDPI AG
2021-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/8/1/15 |
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doaj-484910ba811c427da4f76e029928990c2021-01-13T00:01:21ZengMDPI AGPhotonics2304-67322021-01-018151510.3390/photonics8010015An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average PowerMehmetcan Akbulut0Leonid Kotov1Kort Wiersma2Jie Zong3Maohe Li4Andy Miller5Arturo Chavez-Pirson6Nasser Peyghambarian7NP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USANP Photonics, Inc., 9030 S. Rita Rd. Suite 120, Tucson, AZ 85747, USAWe 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 M<sup>2</sup> 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.https://www.mdpi.com/2304-6732/8/1/15fiber lasereye-safe pulsed fiber laserSBS-free fiber laserhigh energy fiber lasercoherent LIDAR |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Mehmetcan Akbulut Leonid Kotov Kort Wiersma Jie Zong Maohe Li Andy Miller Arturo Chavez-Pirson Nasser Peyghambarian |
| spellingShingle |
Mehmetcan Akbulut Leonid Kotov Kort Wiersma Jie Zong Maohe Li Andy Miller Arturo Chavez-Pirson Nasser Peyghambarian An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power Photonics fiber laser eye-safe pulsed fiber laser SBS-free fiber laser high energy fiber laser coherent LIDAR |
| author_facet |
Mehmetcan Akbulut Leonid Kotov Kort Wiersma Jie Zong Maohe Li Andy Miller Arturo Chavez-Pirson Nasser Peyghambarian |
| author_sort |
Mehmetcan Akbulut |
| title |
An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power |
| title_short |
An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power |
| title_full |
An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power |
| title_fullStr |
An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power |
| title_full_unstemmed |
An Eye-Safe, SBS-Free Coherent Fiber Laser LIDAR Transmitter with Millijoule Energy and High Average Power |
| title_sort |
eye-safe, sbs-free coherent fiber laser lidar transmitter with millijoule energy and high average power |
| publisher |
MDPI AG |
| series |
Photonics |
| issn |
2304-6732 |
| publishDate |
2021-01-01 |
| description |
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 M<sup>2</sup> 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. |
| topic |
fiber laser eye-safe pulsed fiber laser SBS-free fiber laser high energy fiber laser coherent LIDAR |
| url |
https://www.mdpi.com/2304-6732/8/1/15 |
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