TY - GEN

T1 - Supercontinuum Generation in Cascaded Raman Conversion

AU - Ivanenko, Aleksey V.

AU - Mishevsky, Mikhail S.

AU - Vishnyakov, Gleb E.

AU - Nyushkov, Boris N.

AU - Smirnov, Sergey V.

AU - Kobtsev, Sergey M.

N1 - Funding Information: ACKNOWLEDGMENT This work was supported in part by Russian Foundation for Basic Research (18-29-20025), Russian Foundation for Basic Research and Novosibirsk Oblast (grants 20-42-543007, 19-42-540013) and the Ministry of Science and Higher Education of the Russian Federation (FSUS-2020-0036). Publisher Copyright: © 2021 IEEE.

PY - 2021

Y1 - 2021

N2 - The authors demonstrate the possibilities of supercontinuum formation due to cascaded stimulated Raman scattering in a 1-km long optical fibre with standard transverse dimensions doped with phosphorus pentoxide P2O5. For supercontinuum pumping were used noise-like pulses with variable envelope duration (35 to 150 ps) and different coherence degree (with different levels of stochastic fluctuations which corresponded to different amplitudes of the autocorrelation coherence peak). At the average pumping radiation power of 600 mW, the generated supercontinuum width reached 140 nm. Dependencies of supercontinuum properties upon the noise-like pulse parameters are also presented. It is shown that even upon significant increase of the envelope duration of double-scale pulses (from 36 to 153 ps), the efficiency of nonlinear conversion does not decrease. It is also shown that the width of the emission spectrum can reach 225 nm upon reducing the envelope duration down to 25 ps and increasing the coherence peak up to 40%.

AB - The authors demonstrate the possibilities of supercontinuum formation due to cascaded stimulated Raman scattering in a 1-km long optical fibre with standard transverse dimensions doped with phosphorus pentoxide P2O5. For supercontinuum pumping were used noise-like pulses with variable envelope duration (35 to 150 ps) and different coherence degree (with different levels of stochastic fluctuations which corresponded to different amplitudes of the autocorrelation coherence peak). At the average pumping radiation power of 600 mW, the generated supercontinuum width reached 140 nm. Dependencies of supercontinuum properties upon the noise-like pulse parameters are also presented. It is shown that even upon significant increase of the envelope duration of double-scale pulses (from 36 to 153 ps), the efficiency of nonlinear conversion does not decrease. It is also shown that the width of the emission spectrum can reach 225 nm upon reducing the envelope duration down to 25 ps and increasing the coherence peak up to 40%.

KW - fiber laser system

KW - stimulated Raman scattering

KW - supercontinuum properties

UR - http://www.scopus.com/inward/record.url?scp=85124302748&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/2d18a5e6-aae4-31c8-972e-e87de581dd95/

U2 - 10.1109/APEIE52976.2021.9647499

DO - 10.1109/APEIE52976.2021.9647499

M3 - Conference contribution

AN - SCOPUS:85124302748

SN - 9781665434089

T3 - Proceedings of the 2021 15th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2021

SP - 670

EP - 673

BT - Proceedings of the 2021 15th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2021

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 15th International Scientific-Technical Conference on Actual Problems of Electronic Instrument Engineering, APEIE 2021

Y2 - 19 November 2021 through 21 November 2021

ER -