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Optical sampling by ultra-fast high-contrast saturable absorber created by heavy ion irradiation

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5 Author(s)
S. Collin ; Inst. d'Electron. Fondamentale, Orsay, France ; J. Ramos ; J. Lopez ; J. Mangeney
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A 4ps high-sensitivity optical sampling scheme based on a fast GaAs saturable absorber created by heavy-ion irradiation is demonstrated. The intensity-invariant saturable absorber permits high-level inhomogeneous pumping leading to a high open/close ratio of 1000 and to a system sensitivity limited by the level of saturable absorber spontaneous emission

Published in:

Electronics Letters  (Volume:35 ,  Issue: 19 )