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IET Optoelectronics > 2016 > 10 > 4 > 134 - 141
IEEE Journal of Quantum Electronics > 2011 > 47 > 3 > 320 - 326
Electronics Letters > 1991 > 27 > 3 > 289 - 291
IET Optoelectronics > 2016 > 10 > 4 > 134 - 141
IEEE Journal of Quantum Electronics > 2011 > 47 > 3 > 320 - 326
Electronics Letters > 1991 > 27 > 3 > 289 - 291