Laser light source

Details Laser light source Laser light source

2005-08-16

2005-08-16

Vannucci, James (Department: 2828)

Coherent light generators

Particular pumping means

C372S011000

Reexamination Certificate

active

06931047

ABSTRACT:
In the first period from pumping start time T1to time T2in a laser light source1,the power of pumping light L1outputted from a pumping light source41so as to irradiate a laser medium21is at value P1whereas the power of light L2incident on a saturable absorber30after being emitted from the laser medium21is at an absorption saturation threshold or lower, which causes a resonator10to lower its Q-value, thereby suppressing the laser oscillation. Immediately before time T2,the power of light L2is slightly lower than the absorption saturation threshold. In the second period subsequent to the first period, the power of light L2is at value P2greater than the above-mentioned value P1,whereas the power of light L2exceeds the absorption saturation threshold, which causes the resonator10to increase its Q-value, whereby a mirror12outputs pulse laser light L3to the outside.

REFERENCES:
patent: 5488620 (1996-01-01), Minden
patent: 5991315 (1999-11-01), Injeyan et al.
patent: 6608854 (2003-08-01), Watanabe
Khurgin, Jacob B., et al., “Cost-effective low timing jitter passively Q-switched diode-pumped solid-state laser with composite pumping pulses”, Applied Optics, vol. 41, No. 6, pp. 1095-1097, Feb. 20, 2002.
Huang, Sheng-Lung, et al., “Timing Jitter Reduction of a Passively Q-Switched Laser”, Japanese Journal of Applied Physics, vol. 38, Part 2, No. 3A, pp. L239-L241, Mar. 1, 1999.

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