Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback

G.J. Valentine, E. Bente, D. Burns, A.I. Ferguson

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

2 Citaties (Scopus)

Uittreksel

The technique of operating picosecond modelocked laser systems quasi-CW is presented. Higher modelocked output power results at the expense of reduced effective pulse repetition rate. Passively modelocked quasi-CW lasers at 1.0 and 1.3 μm with high 'on-time' powers (∼65W) are described. Active stabilization of these systems is demonstrated via negative feedback using an intracavity loss modulator. Stabilization suppresses relaxation-oscillation driven spiking on reaching threshold and prevents Q-switching of the laser caused by the presence of a saturable absorber for modelocking. In this way, the usable parameter range of a saturable absorber for stable CW modelocking is extended such that stable Q-switch free modelocking of a quasi-CW laser with pulse repetition rates over 900MHz, is possible. Numerical modeling confirms the flexible nature of stabilization via negative feedback applied to unstable laser systems incorporating saturable absorbers.

Originele taal-2Engels
TitelInternational Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems
Plaats van productieBellingham
UitgeverijSPIE
Pagina's88-99
Aantal pagina's12
DOI's
StatusGepubliceerd - 1 dec 2002
EvenementInternational Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems - Moscow, Rusland
Duur: 22 jun 200227 jun 2002

Publicatie series

NaamProceedings of SPIE - The International Society for Optical Engineering
UitgeverijSPIE
Volume5137
ISSN van geprinte versie0277-786X

Congres

CongresInternational Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems
LandRusland
StadMoscow
Periode22/06/0227/06/02

Vingerafdruk

Saturable absorbers
Saturable Absorber
Mode-locking
Closed-loop
Pulse repetition rate
Stabilization
Continuous wave lasers
stabilization
Laser
Feedback
Negative Feedback
Lasers
absorbers
negative feedback
Q switching
pulse repetition rate
lasers
Q-switching
Mode-locked Lasers
Relaxation Oscillations

Citeer dit

Valentine, G. J., Bente, E., Burns, D., & Ferguson, A. I. (2002). Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback. In International Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems (blz. 88-99). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 5137). Bellingham: SPIE. https://doi.org/10.1117/12.517923
Valentine, G.J. ; Bente, E. ; Burns, D. ; Ferguson, A.I. / Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback. International Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems. Bellingham : SPIE, 2002. blz. 88-99 (Proceedings of SPIE - The International Society for Optical Engineering).
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abstract = "The technique of operating picosecond modelocked laser systems quasi-CW is presented. Higher modelocked output power results at the expense of reduced effective pulse repetition rate. Passively modelocked quasi-CW lasers at 1.0 and 1.3 μm with high 'on-time' powers (∼65W) are described. Active stabilization of these systems is demonstrated via negative feedback using an intracavity loss modulator. Stabilization suppresses relaxation-oscillation driven spiking on reaching threshold and prevents Q-switching of the laser caused by the presence of a saturable absorber for modelocking. In this way, the usable parameter range of a saturable absorber for stable CW modelocking is extended such that stable Q-switch free modelocking of a quasi-CW laser with pulse repetition rates over 900MHz, is possible. Numerical modeling confirms the flexible nature of stabilization via negative feedback applied to unstable laser systems incorporating saturable absorbers.",
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Valentine, GJ, Bente, E, Burns, D & Ferguson, AI 2002, Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback. in International Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems. Proceedings of SPIE - The International Society for Optical Engineering, vol. 5137, SPIE, Bellingham, blz. 88-99, Moscow, Rusland, 22/06/02. https://doi.org/10.1117/12.517923

Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback. / Valentine, G.J.; Bente, E.; Burns, D.; Ferguson, A.I.

International Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems. Bellingham : SPIE, 2002. blz. 88-99 (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 5137).

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

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AU - Bente, E.

AU - Burns, D.

AU - Ferguson, A.I.

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N2 - The technique of operating picosecond modelocked laser systems quasi-CW is presented. Higher modelocked output power results at the expense of reduced effective pulse repetition rate. Passively modelocked quasi-CW lasers at 1.0 and 1.3 μm with high 'on-time' powers (∼65W) are described. Active stabilization of these systems is demonstrated via negative feedback using an intracavity loss modulator. Stabilization suppresses relaxation-oscillation driven spiking on reaching threshold and prevents Q-switching of the laser caused by the presence of a saturable absorber for modelocking. In this way, the usable parameter range of a saturable absorber for stable CW modelocking is extended such that stable Q-switch free modelocking of a quasi-CW laser with pulse repetition rates over 900MHz, is possible. Numerical modeling confirms the flexible nature of stabilization via negative feedback applied to unstable laser systems incorporating saturable absorbers.

AB - The technique of operating picosecond modelocked laser systems quasi-CW is presented. Higher modelocked output power results at the expense of reduced effective pulse repetition rate. Passively modelocked quasi-CW lasers at 1.0 and 1.3 μm with high 'on-time' powers (∼65W) are described. Active stabilization of these systems is demonstrated via negative feedback using an intracavity loss modulator. Stabilization suppresses relaxation-oscillation driven spiking on reaching threshold and prevents Q-switching of the laser caused by the presence of a saturable absorber for modelocking. In this way, the usable parameter range of a saturable absorber for stable CW modelocking is extended such that stable Q-switch free modelocking of a quasi-CW laser with pulse repetition rates over 900MHz, is possible. Numerical modeling confirms the flexible nature of stabilization via negative feedback applied to unstable laser systems incorporating saturable absorbers.

KW - Active stabilization

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KW - High-power solid-state laser

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Valentine GJ, Bente E, Burns D, Ferguson AI. Active stabilisation of quasi-CW passively modelocked Nd:based lasers using closed-loop feedback. In International Conference on Lasers, Applications, and Technologies 2002 Advanced Lasers and Systems. Bellingham: SPIE. 2002. blz. 88-99. (Proceedings of SPIE - The International Society for Optical Engineering). https://doi.org/10.1117/12.517923