The Review of Laser Engineering
Online ISSN : 1349-6603
Print ISSN : 0387-0200
ISSN-L : 0387-0200
The Effect of Saturable Absorber Concentration on Pulse Duration and Energy Stability of Hybrid Mode-Locked YAlO3:Nd3+- Laser with GaAs Passive Negative Feedback
Do-Hyun PARK, Gi-Jung NAM, Kyu-Haeng LEE, Sang-Cheon KIM, Hoon SHIM, Seung-Han PARK, Ung KIM, A. V. BABUSHKIN, N. S. VOROBIOV
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Keywords: YAlO3:Nd3+, Active-passively mode-locking, Saturable absorber, Passive negative feedback
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1996 Volume 24 Issue 12 Pages 1332-1336

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Abstract
The effects of the saturable absorber absorption on the pulse duration and stability of active-passively mode-locked YAlO3:Nd3+ laser were investigated. The optimum conditions for energy stability and pulse duration were obtained at the absorption coefficient of α0 = 10.5 cm-1. The energy stability of the steady-state part of the pulse train, containing approximately 60 pulses, was achieved to be less than ±1% r.m.s.. The nonlinear behavior of the passive negative feedback element was also observed.
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