Title :

Topological signature of deterministic chaos in short nonstationary signals from an optical parametric oscillator

Author(s) :

Amon, Axelle [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]
Lefranc, Marc [Auteur]
Laboratoire de Physique des Lasers, Atomes et Molécules - UMR 8523 [PhLAM]

Journal title :

PHYSICAL REVIEW LETTERS

Pages :

94101

Publisher :

American Physical Society

Publication date :

2004

ISSN :

0031-9007

English keyword(s) :

chaos
topological analysis
knots
entropy
optical parametric oscillator
braids
nonstationary

HAL domain(s) :

Science non linéaire [physics]/Dynamique Chaotique [nlin.CD]
Physique [physics]/Physique [physics]/Optique [physics.optics]

English abstract : [en]

Although deterministic chaos has been predicted to occur in the triply resonant optical parametric oscillator (TROPO) fifteen years ago, experimental evidence of chaotic behavior in this system has been lacking so far, in ...
Show more >Although deterministic chaos has been predicted to occur in the triply resonant optical parametric oscillator (TROPO) fifteen years ago, experimental evidence of chaotic behavior in this system has been lacking so far, in marked contrast with most nonlinear systems, where chaos has been actively tracked and found. This situation is probably linked to the high sensitivity of the TROPO to perturbations, which adversely affects stationary operation at high power. We report the experimental observation in this system of a burst of irregular behavior of duration 80 microseconds. Although the system is highly nonstationary over this time interval, a topological analysis allows us to extract a clearcut signature of deterministic chaos from a time series segment of only 9 base cycles (3 microseconds). This result suggests that nonstationarity is not necessarily an obstacle to the characterization of chaos.Show less >

Language :

Anglais

Popular science :

Non

Collections :

• Laboratoire de Physique des Lasers, Atomes et Molécules (PhLAM) - UMR 8523

Source :

Harvested from HAL