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Kilowatt-level fiber amplifier with spectral-broadening-free property, seeded by a random fiber laser.
Opt Lett. 2015 Nov 15; 40(22):5311-4.OL

Abstract

In this Letter, we demonstrate a kilowatt (kW) level high-power fiber laser amplifier with a clear sign of spectral-broadening-free property. The high-power fiber lasing is realized by employing a master oscillator power-amplifier (MOPA) configuration, seeded by a temporally stable random fiber laser (RFL) that utilizes Raman amplification and random distributed feedback from a long passive fiber. The output power reaches 1.03 kW with a 1070 nm wavelength and an optical-to-optical efficiency of 74.6%. Despite the typical nonlinear spectral broadening in most traditional MOPA systems, the output spectral linewidth is well maintained during the whole high-power amplification process. The suppressed linewidth broadening in the spectral domain during high-power amplification is significant for further power scaling, spectral beam combination, and other applications that require narrow-linewidth high-power lasing.

Authors

No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

26565862

Citation

Du, Xueyuan, et al. "Kilowatt-level Fiber Amplifier With Spectral-broadening-free Property, Seeded By a Random Fiber Laser." Optics Letters, vol. 40, no. 22, 2015, pp. 5311-4.
Du X, Zhang H, Ma P, et al. Kilowatt-level fiber amplifier with spectral-broadening-free property, seeded by a random fiber laser. Opt Lett. 2015;40(22):5311-4.
Du, X., Zhang, H., Ma, P., Xiao, H., Wang, X., Zhou, P., & Liu, Z. (2015). Kilowatt-level fiber amplifier with spectral-broadening-free property, seeded by a random fiber laser. Optics Letters, 40(22), 5311-4. https://doi.org/10.1364/OL.40.005311
Du X, et al. Kilowatt-level Fiber Amplifier With Spectral-broadening-free Property, Seeded By a Random Fiber Laser. Opt Lett. 2015 Nov 15;40(22):5311-4. PubMed PMID: 26565862.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Kilowatt-level fiber amplifier with spectral-broadening-free property, seeded by a random fiber laser. AU - Du,Xueyuan, AU - Zhang,Hanwei, AU - Ma,Pengfei, AU - Xiao,Hu, AU - Wang,Xiaolin, AU - Zhou,Pu, AU - Liu,Zejin, PY - 2015/11/14/entrez PY - 2015/11/14/pubmed PY - 2015/11/14/medline SP - 5311 EP - 4 JF - Optics letters JO - Opt Lett VL - 40 IS - 22 N2 - In this Letter, we demonstrate a kilowatt (kW) level high-power fiber laser amplifier with a clear sign of spectral-broadening-free property. The high-power fiber lasing is realized by employing a master oscillator power-amplifier (MOPA) configuration, seeded by a temporally stable random fiber laser (RFL) that utilizes Raman amplification and random distributed feedback from a long passive fiber. The output power reaches 1.03 kW with a 1070 nm wavelength and an optical-to-optical efficiency of 74.6%. Despite the typical nonlinear spectral broadening in most traditional MOPA systems, the output spectral linewidth is well maintained during the whole high-power amplification process. The suppressed linewidth broadening in the spectral domain during high-power amplification is significant for further power scaling, spectral beam combination, and other applications that require narrow-linewidth high-power lasing. SN - 1539-4794 UR - https://www.unboundmedicine.com/medline/citation/26565862/Kilowatt_level_fiber_amplifier_with_spectral_broadening_free_property_seeded_by_a_random_fiber_laser_ DB - PRIME DP - Unbound Medicine ER -
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