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Plane-by-plane femtosecond laser inscription of first-order fiber Bragg gratings in fluoride glass fiber for in situ monitoring of lasing evolution.
Opt Express. 2018 Dec 10; 26(25):33305-33313.OE

Abstract

We report the femtosecond laser inscription of fiber Bragg gratings (FBGs) in an Er-doped fluoride glass fiber used for lasing at a mid-infrared wavelength of 2.8 µm. The lasing evolution is discussed in terms of the FBG reflectivity, wavelength transition to the Bragg wavelength, and output power of the mid-infrared fiber laser. A first-order and short (2.5-mm-long) Bragg grating showed a reflectivity of 97%, because of a laser-induced index modulation of 1.1 × 10-3. This modulation was sufficient to saturate this system's output power. The laser oscillator is designed to lase in the atmospheric window of 2799-2800 nm slope. Further, this oscillator's efficiency is as high as 29.1% for the launched pump power over the range of 0.4-4.6 W and at a lasing wavelength of 2799.7 nm. This oscillator also exhibited a FWHM bandwidth of 0.12 nm.

Authors

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Pub Type(s)

Journal Article

Language

eng

PubMed ID

30645484

Citation

Goya, Kenji, et al. "Plane-by-plane Femtosecond Laser Inscription of First-order Fiber Bragg Gratings in Fluoride Glass Fiber for in Situ Monitoring of Lasing Evolution." Optics Express, vol. 26, no. 25, 2018, pp. 33305-33313.
Goya K, Matsukuma H, Uehara H, et al. Plane-by-plane femtosecond laser inscription of first-order fiber Bragg gratings in fluoride glass fiber for in situ monitoring of lasing evolution. Opt Express. 2018;26(25):33305-33313.
Goya, K., Matsukuma, H., Uehara, H., Hattori, S., Schäfer, C., Konishi, D., Murakami, M., & Tokita, S. (2018). Plane-by-plane femtosecond laser inscription of first-order fiber Bragg gratings in fluoride glass fiber for in situ monitoring of lasing evolution. Optics Express, 26(25), 33305-33313. https://doi.org/10.1364/OE.26.033305
Goya K, et al. Plane-by-plane Femtosecond Laser Inscription of First-order Fiber Bragg Gratings in Fluoride Glass Fiber for in Situ Monitoring of Lasing Evolution. Opt Express. 2018 Dec 10;26(25):33305-33313. PubMed PMID: 30645484.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Plane-by-plane femtosecond laser inscription of first-order fiber Bragg gratings in fluoride glass fiber for in situ monitoring of lasing evolution. AU - Goya,Kenji, AU - Matsukuma,Hiraku, AU - Uehara,Hiyori, AU - Hattori,Satoshi, AU - Schäfer,Christian, AU - Konishi,Daisuke, AU - Murakami,Masanao, AU - Tokita,Shigeki, PY - 2019/1/16/entrez PY - 2019/1/16/pubmed PY - 2019/1/16/medline SP - 33305 EP - 33313 JF - Optics express JO - Opt Express VL - 26 IS - 25 N2 - We report the femtosecond laser inscription of fiber Bragg gratings (FBGs) in an Er-doped fluoride glass fiber used for lasing at a mid-infrared wavelength of 2.8 µm. The lasing evolution is discussed in terms of the FBG reflectivity, wavelength transition to the Bragg wavelength, and output power of the mid-infrared fiber laser. A first-order and short (2.5-mm-long) Bragg grating showed a reflectivity of 97%, because of a laser-induced index modulation of 1.1 × 10-3. This modulation was sufficient to saturate this system's output power. The laser oscillator is designed to lase in the atmospheric window of 2799-2800 nm slope. Further, this oscillator's efficiency is as high as 29.1% for the launched pump power over the range of 0.4-4.6 W and at a lasing wavelength of 2799.7 nm. This oscillator also exhibited a FWHM bandwidth of 0.12 nm. SN - 1094-4087 UR - https://www.unboundmedicine.com/medline/citation/30645484/Plane_by_plane_femtosecond_laser_inscription_of_first_order_fiber_Bragg_gratings_in_fluoride_glass_fiber_for_in_situ_monitoring_of_lasing_evolution_ DB - PRIME DP - Unbound Medicine ER -
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