Mode-locked solid-state laser apparatus

Details Mode-locked solid-state laser apparatus Mode-locked solid-state laser apparatus

2011-05-24

2011-05-24

Nguyen, Dung T (Department: 2828)

Coherent light generators

Particular beam control device

Mode locking

C372S011000, C372S030000, C372S108000

Reexamination Certificate

active

07949018

ABSTRACT:
In a mode-locked laser-diode-excited laser apparatus: a solid-state laser medium is arranged at a distance of at most twice the Rayleigh range from a saturable absorbing mirror with a depth of absorbing modulation of at least 0.4%; the total intracavity dispersion is smaller than zero and makes oscillating light have such a pulse bandwidth that the saturable absorbing mirror can suppress a background pulses other than soliton pulses repeated with a fundamental repetition period, and the magnitude of the total intracavity dispersion has a predetermined relationship with a pulse width of the oscillating light; and an output mirror is a negative-dispersion mirror being constituted by three or more multilayer mirrors and cavity layers arranged at predetermined intervals between the three or more multilayer mirrors, and causing a mirror dispersion of −3000 fsec2to −600 fsec2and realizes a reflectance of 97% to 99.5%.

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