Picosecond ultrashort cavity dye laser: Giant pulse analogy and active etalon model

Journal Article · Mon Jun 01 04:00:00 EDT 1981 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.329843· OSTI ID:6322492

Duncanson, Jr, J A; Struve, W S

The evolution of a tunable dye laser (TDL) pulse in an ultrashort cavity pumped by a monochromatic picosecond light pulse is described using the appropriate laser rate equations. The ultrashort duration of the excitation pulse typically reduces the treatment into one which is directly analogous to the giant pulse model of Wagner and Lengyel, applied previously to Q-switching dynamics in solid-state lasers. The spectral properties of the TDL pulse are calculated using an active etalon model, in which the bandwidth narrowing of the cavity axial modes is governed by the time-dependent gain derived from the giant pulse model. Theoretical conditions are obtained for achieving operating regimes which correspond to extraction of high pump..-->..TDL conversion efficiencies, to the minimization of TDL pulse durations, or to shot-to-shot stabilization of output properties. The feasibility of extracting approx.45% conversion of 531-nm SHG pulses from the mode-locked Nd/sup 3 +/ : glass oscillator using a 54-nm rhodamine 6G cavity is confirmed experimentally.

• Research Organization: Department of Chemistry and Ames Laboratory-USDOE, Iowa State University, Ames, Iowa 50011
• OSTI ID: 6322492
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:6; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
AMPLIFICATION
DATA
DYE LASERS
EFFICIENCY
ENERGY-LEVEL TRANSITIONS
EQUATIONS
EXCITATION
GAIN
HARMONICS
INFORMATION
LASER CAVITIES
LASERS
LIQUID LASERS
MATHEMATICAL MODELS
NUMERICAL DATA
OPTICAL PUMPING
OSCILLATION MODES
OSCILLATIONS
PULSES
PUMPING
Q-SWITCHING
SPECTRA
THEORETICAL DATA
TIME DEPENDENCE
TUNING