Time-dependent behavior of a unidirectional ring laser with inhomogeneous broadening

Journal Article · Tue Jan 01 04:00:00 EST 1985 · J. Opt. Soc. Am. B: Opt. Phys.; (United States)

DOI:https://doi.org/10.1364/JOSAB.2.000056· OSTI ID:5893116

Bandy, D K; Narducci, L M; Lugiato, L A; Abraham, N B

We solve numerically the time-dependent equations of motions for an inhomogeneously broadened single-mode ring laser. As expected from the linear stability analysis, pulsations develop in the output of the laser for approximate values of the gain parameter. Under resonant conditions, the tendency is for the system to slip from a periodic regime into irregular oscillations; out of resonance, however, periodic oscillations and period-doubling bifurcations are more typical over a large range of gain values. We find that, as the ratio of the population-to-polarization decay rates varies from a value of two (radiative limit) to smaller values, the periodic oscillations turn into a train of well-separated pulses whose peak intensity scales approximately as the square of the atomic density.

• Research Organization: Department of Physics, Drexel University, Philadelphia, Pennsylvania 19104
• OSTI ID: 5893116
• Journal Information: J. Opt. Soc. Am. B: Opt. Phys.; (United States), Journal Name: J. Opt. Soc. Am. B: Opt. Phys.; (United States) Vol. 2:1; ISSN JOBPD
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
DIFFERENTIAL EQUATIONS
ELECTROMAGNETIC PULSES
ELECTROMAGNETIC RADIATION
EQUATIONS
EQUATIONS OF MOTION
GAIN
INSTABILITY
LASER CAVITIES
LASERS
LINE BROADENING
MATHEMATICAL MODELS
NONLINEAR PROBLEMS
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
POLARIZATION
POPULATION INVERSION
PULSATIONS
PULSES
RADIATIONS
RESONANCE
RING LASERS
TIME DEPENDENCE
TIMING PROPERTIES