Bibliographic Details
| Title: |
Passive Q-switching of a Tm:YLF laser with a Co2+ doped silver halide saturable absorber. |
| Authors: |
Hecht, Harel1,2, Burshtein, Zeev3, Katzir, Abraham4, Noach, Salman5, Sokol, Maxim3, Frumker, Eugene2, Galun, Ehud6, Ishaaya, Amiel A.1 ishaaya@ee.bgu.ac.il |
| Source: |
Optical Materials. Feb2017, Vol. 64, p64-69. 6p. |
| Subjects: |
Passive Q-switching, Lithium fluoride, Doping agents (Chemistry), Silver halides, Optical saturable absorption |
| Abstract: |
We report a successful passive Q-switching of a Tm:YLF laser operating at λ = 1.9 μm, using a Co 2+ :AgCl 0.5 Br 0.5 saturable absorber. Approximately 200-ns long, 150 μJ pulses were obtained. Increase in pump energy resulted in repetitive pulsing, with a repetition rate approximately proportional to the pump pulse energy. Room-temperature optical transmission saturation curves measured in ∼1-mm thick Co 2+ :AgCl 0.5 Br 0.5 plates yielded a ground state absorption cross section σ g s = ( 7.8 ± 0.5 ) × 10 − 18 c m 2 , and an excited state absorption cross section σ e s = ( 3.3 ± 0.3 ) × 10 − 18 c m 2 , at λ = 1.9 μm. The lifetime of the A 2 ( 4 F) second excited-state of the octahedral O symmetry was τ ∗ = ( 0.6 ± 0.06 ) n s . [ABSTRACT FROM AUTHOR] |
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| Database: |
Engineering Source |
