Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
New schemes and regimes of CW and pulsed Raman fiber lasers. / Babin, Sergey A.
Laser Technology for Defense and Security XIV. ed. / M Dubinskiy; TC Newell. Vol. 10637 SPIE, 2018. 1063706 (Proceedings of SPIE; Vol. 10637).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Research › peer-review
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TY - GEN
T1 - New schemes and regimes of CW and pulsed Raman fiber lasers
AU - Babin, Sergey A.
PY - 2018/1/1
Y1 - 2018/1/1
N2 - A review of recent results on new schemes and regimes of Raman fiber lasers (RFL) is presented. The key feature of RFLs is generation in new wavelength ranges, which are not covered by existing fiber lasers based on rare-earth doped active fibers. New high-brightness 9.. nm all-fiber source based on directly diode pumped passive GRIN multimode fiber with in-core fiber Bragg gratings (FBGs) enables high-efficiency Raman generation of high-quality (M2≤2.6) beam at powers up to ∼100 W with further scaling capabilities. Mirrorless scheme based on Rayleigh-backscattering random distributed feedback (RDFB) in a singlemode polarization-maintaining (PM) fiber provides ultimate pump-to-Stokes conversion efficiency for the first order as well as cascaded generation of higher orders in 1-2 μm range. Single-frequency Raman lasing in a short (∼10 m) PM fiber with RDFB based on random FBG array has been also demonstrated. Pulsed operation of RFL at active Q-switching and mode-locking in passive fibers is realized with pulse energies and durations of up to 30 μJ and ∼50 ps, correspondingly. New regime of Raman dissipative solitons (of the first and second Stokes orders) synchronously generated in a common or external resonant cavity and their nonlinear mixing in PCF provide generation of <300 femtosecond pulses with ∼10 nJ energy at new wavelengths in 900-1300 nm range.
AB - A review of recent results on new schemes and regimes of Raman fiber lasers (RFL) is presented. The key feature of RFLs is generation in new wavelength ranges, which are not covered by existing fiber lasers based on rare-earth doped active fibers. New high-brightness 9.. nm all-fiber source based on directly diode pumped passive GRIN multimode fiber with in-core fiber Bragg gratings (FBGs) enables high-efficiency Raman generation of high-quality (M2≤2.6) beam at powers up to ∼100 W with further scaling capabilities. Mirrorless scheme based on Rayleigh-backscattering random distributed feedback (RDFB) in a singlemode polarization-maintaining (PM) fiber provides ultimate pump-to-Stokes conversion efficiency for the first order as well as cascaded generation of higher orders in 1-2 μm range. Single-frequency Raman lasing in a short (∼10 m) PM fiber with RDFB based on random FBG array has been also demonstrated. Pulsed operation of RFL at active Q-switching and mode-locking in passive fibers is realized with pulse energies and durations of up to 30 μJ and ∼50 ps, correspondingly. New regime of Raman dissipative solitons (of the first and second Stokes orders) synchronously generated in a common or external resonant cavity and their nonlinear mixing in PCF provide generation of <300 femtosecond pulses with ∼10 nJ energy at new wavelengths in 900-1300 nm range.
KW - beam clean-up
KW - cascaded Raman laser
KW - diode pumping
KW - fiber Bragg grating
KW - fiber laser
KW - frequency mixing
KW - graded-index fiber
KW - Raman dissipative soliton
KW - Raman laser
KW - random FBG
KW - random lasing
KW - POWER
KW - GENERATION
KW - HIGH-EFFICIENCY
UR - http://www.scopus.com/inward/record.url?scp=85050231469&partnerID=8YFLogxK
U2 - 10.1117/12.2309634
DO - 10.1117/12.2309634
M3 - Conference contribution
AN - SCOPUS:85050231469
VL - 10637
T3 - Proceedings of SPIE
BT - Laser Technology for Defense and Security XIV
A2 - Dubinskiy, M
A2 - Newell, TC
PB - SPIE
T2 - Laser Technology for Defense and Security XIV 2018
Y2 - 17 April 2018 through 18 April 2018
ER -
ID: 15962339