Spectro-Temporal Evolution and Transient Resonator in Solid-State Cr 3+: LiSAF Laser Emissions
Hao Nguyen Van 1,2, Hoang Nguyen Dinh 1, Tiep Phung Viet 1, Hung Nguyen Dai 1
1 Center for Quantum Electronics, Institute of Physics, VAST.
10 Dao Tan – Ba Dinh – Hanoi, Vietnam
2 Thai Nguyen University of Science, Quyet Thang, Thai Nguyen city, Vietnam
Received:
Received: 29 June 2010; accepted: 13 September 2010
DOI: 10.12921/cmst.2010.SI.02.21-25
OAI: oai:lib.psnc.pl:697
Abstract:
The Cr3+: LiSAF crystal is widely used as a laser medium of a wide gain spectrum from 700 nm to 920 nm. Our numerical investigations demonstrate a spectro-temporal evolution in the broadband Cr3+: LiSAF laser emission from Fabry-Perot resonator and particularly, from a low – Q resonator. Furthermore, the resonator transient and the phenomenon of relaxation oscillations in the solidstate Cr3+: LiSAF laser have been studied. Interestingly, using a diode-pump pulse of 100 μs at 670 nm, a stable generation of single nanosecond Cr3+: LiSAF laser pulse at 850 nm is obtainable by simple choices of resonator parameters such as photon-cavity time and pump level. A pulse compression factor of 1 000 is achievable. As a result, a simple technique of short laser pulse generation at a high repetition rate of diode pumping pulses has been proposed.
Key words:
Cr: LiSAF crystals, spectro-temporal evolution, the resonator transient
References:
[1] C.L. Tang, J. Appl. Phys. 34, 2935-2940 (1963).
[2] F.P. Schafer, Dye Lasers (Springer-Verlag), 1-90 (1973).
[3] C. Lin, C.V. Shank, Appl. Phys. Lett. 26, 389-391 (1975).
[4] N. Dai Hung, Y. Segawa, P. Long et.al, Appl. Phys. B 65, 19-26 (1997).
[5] C. Durracq, N. Sanner, P. Brechignac et al. (Eds. A. Bersellini, G. Denardo et al) 252-258 (2004).
[6] A.E. Siegman, Lasers (University Science Books, Mill Valley, California, 1986).
[7] W. Koechner, in Solid-State Laser Engineering, 4-th edition, 28-80, Springer-Verlag, Berlin, 1996.
[8] S.A. Payne, L.L. Chase, L.K. Smith, W.L. Kway, Herbert W. Newkirk, J. Appl. Phys. 66, 1051-1056 (1989).
[9] M. Stalder, B.H.T. Chai, M. Bass, Appl. Phys. Lett. 58, 216−218 (19910.
The Cr3+: LiSAF crystal is widely used as a laser medium of a wide gain spectrum from 700 nm to 920 nm. Our numerical investigations demonstrate a spectro-temporal evolution in the broadband Cr3+: LiSAF laser emission from Fabry-Perot resonator and particularly, from a low – Q resonator. Furthermore, the resonator transient and the phenomenon of relaxation oscillations in the solidstate Cr3+: LiSAF laser have been studied. Interestingly, using a diode-pump pulse of 100 μs at 670 nm, a stable generation of single nanosecond Cr3+: LiSAF laser pulse at 850 nm is obtainable by simple choices of resonator parameters such as photon-cavity time and pump level. A pulse compression factor of 1 000 is achievable. As a result, a simple technique of short laser pulse generation at a high repetition rate of diode pumping pulses has been proposed.
Key words:
Cr: LiSAF crystals, spectro-temporal evolution, the resonator transient
References:
[1] C.L. Tang, J. Appl. Phys. 34, 2935-2940 (1963).
[2] F.P. Schafer, Dye Lasers (Springer-Verlag), 1-90 (1973).
[3] C. Lin, C.V. Shank, Appl. Phys. Lett. 26, 389-391 (1975).
[4] N. Dai Hung, Y. Segawa, P. Long et.al, Appl. Phys. B 65, 19-26 (1997).
[5] C. Durracq, N. Sanner, P. Brechignac et al. (Eds. A. Bersellini, G. Denardo et al) 252-258 (2004).
[6] A.E. Siegman, Lasers (University Science Books, Mill Valley, California, 1986).
[7] W. Koechner, in Solid-State Laser Engineering, 4-th edition, 28-80, Springer-Verlag, Berlin, 1996.
[8] S.A. Payne, L.L. Chase, L.K. Smith, W.L. Kway, Herbert W. Newkirk, J. Appl. Phys. 66, 1051-1056 (1989).
[9] M. Stalder, B.H.T. Chai, M. Bass, Appl. Phys. Lett. 58, 216−218 (19910.
