Optical bistability and hysteresis in a colliding pulse mode locked femtosecond dye laser

Jacobovitz, G. R.; Cruz, Carlos Henrique de Brito; Mansur, Newton P.; Scarparo, M. A. F.

doi:10.1016/0030-4018(86)90291-9

Cited by 3 publications

(1 citation statement)

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“…Increasing pump power shifts down the curve o f maxima. This behavior offers a new interpretation for bistability reported on CPM systems [18]. For a given absorber concentration they increase pump power until the curve o f maxima is pushed below the diagonal and laser wavelength jumps to yellow, where the threshold for continuous operation has been surpassed.…”

Section: Dependence On Laser Parametersmentioning

confidence: 71%

Parameters that determine the wavelength of a passive mode-locked dye laser

Chilla

Pernas

Martı́nez

et al. 1989

Optics Communications

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We introduce a new stability criterion that should be added to previous theoretical models of passive mode locked lasers in order to predict emission wavelength, which is to require that the pulse spectrum reproduces itself after one transit. The CPM laser consisting of rhodamine 6G as gain medium and DODCI as saturable absorber is studied. The relative population balance of the fundamental and photoisomer species of the DODCI are computed as a function of the pulse energy and wavelength. The necessity of a spectral stability criterion follows from the dependence of the gain profile on the pulse parameters. Use of the criterion is shown to agree with previous experimental results, such as the red spectral region of emission and dependence of emission wavelength on absorber concentration. This criterion is expected to be an useful tool in order to select other dye combi nations and predict the laser behavior.

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Section: Dependence On Laser Parametersmentioning

confidence: 71%