NDLI: Enhanced quadratic photocurrent in commercial light emitting diodes for autocorrelation measurement of ultrashort laser pulses

Content Provider	Springer Nature Link
Author	Sharma, A.K. Naik, P.A. Gupta, P.D.
Copyright Year	2005
Abstract	The quadratic photocurrent in commercial light emitting diodes (LEDs) has been studied in reverse bias mode for autocorrelation measurement of ultrashort laser pulses. It is found that the photocurrent can be greatly enhanced by operating the LED biased just below the reverse bias breakdown threshold. The effect of aging of LEDs on laser exposure in this mode of operation is found to be similar to that for the photovoltaic mode. The large internal gain in LED junction has enabled the recording of the second order autocorrelation signal of ∼200 fs laser pulses from 100 MHz laser oscillator with two orders of magnitude smaller average and peak power product compared to the case of the photovoltaic mode.
Starting Page	407
Ending Page	411
Page Count	5
File Format	PDF
ISSN	09462171
Journal	Applied Physics B
Volume Number	82
Issue Number	3
e-ISSN	14320649
Language	English
Publisher	Springer-Verlag
Publisher Date	2006-01-11
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Physics and Applied Physics in Engineering Optical Spectroscopy, Ultrafast Optics Quantum Optics, Quantum Electronics, Nonlinear Optics Laser Technology and Physics, Photonics Physical Chemistry Electromagnetism, Optics and Lasers
Content Type	Text
Resource Type	Article
Subject	Physics and Astronomy

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Enhanced quadratic photocurrent in commercial light emitting diodes for autocorrelation measurement of ultrashort laser pulses