Frequency tuning of homoclinic chaos in an infrared laser with an osmium tetroxide intracavity saturable absorber

Journal Article · Sat Jul 01 04:00:00 EDT 1995 · Journal of the Optical Society of America, Part B: Optical Physics

DOI:https://doi.org/10.1364/JOSAB.12.001326· OSTI ID:172186

Alcantara, P Jr ^[1]; Guidoni, L; Barsella, A; Fioretti, A; Arimondo, E ^[2]

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1. Instituto de Fisica, Universidade Federal do Rio Grande do Sul, CP, Porto Alegre, Rio Grande do Sul (Brazil)
2. Dipartimento di Fisica, Universita degli Studi di Pisa, Piazza Torricelli 2, 56126 Pisa (Italy)

Dynamical behaviors of a CO{sub 2} laser system with an OsO{sub 4} intracavity saturable absorber have been experimentally investigated, with the gain in the CO{sub 2} medium and the detuning between laser operation frequency and absorber transition frequency being used as control parameters. The use of this detuning as a meaningful control parameter has been possible because of the simple spectroscopic structure of the OsO{sub 4} saturable absorber. The analysis of the experimental data, performed by means of Poincare sections and return maps, has revealed chaotic sceneries that were predicted by theory but not yet demonstrated in experiments. Complete phase diagrams of the laser operation have been obtained at two different absorber pressures, and they could be useful in future theoretical anlayses.

• Sponsoring Organization: USDOE
• OSTI ID: 172186
• Journal Information: Journal of the Optical Society of America, Part B: Optical Physics, Journal Name: Journal of the Optical Society of America, Part B: Optical Physics Journal Issue: 7 Vol. 12; ISSN JOBPDE; ISSN 0740-3224
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
CARBON DIOXIDE LASERS
GAIN
INFRARED RADIATION
POINCARE GROUPS
STABILITY
TUNING