High-sensitivity two-photon absorption microcavity autocorrelator
Item Type:Journal Article
Citation:Krug, T. and Lynch, M. and Bradley, A. L. and Donegan, J. F. and Barry, L. P. and Folliot, H. and Roberts, J. S. and Hill, G. 'High-sensitivity two-photon absorption microcavity autocorrelator', in IEEE Photonics Technology Letters, 16, 2004, pp. 1543-1545.
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A GaAs-AlAs microcavity device has been used as a photodetector in an autocorrelator for measuring the temporal pulsewidth of 1.5-/spl mu/m optical pulses. Enhancement of the two-photon absorption photocurrent due to the microcavity structure results in an autocorrelation (average power times peak power) sensitivity of 9.3/spl times/10/sup -4/ (mW)/sup 2/, which represents two orders of magnitude improvement when compared with conventional autocorrelators
Author: DONEGAN, JOHN FRANCIS; Krug, T.; Lynch, M.; Barry, L. P.; Folliot, H.; Roberts, J. S.; Hill, G.; BRADLEY, LOUISE
Type of material:Journal Article
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