IEEE Photonics Technology Letters
IEEE Photonics Technology Letters > 2007 > 19 > 1 > 9 - 11
IEEE Photonics Technology Letters > 2007 > 19 > 7 > 462 - 464
IEEE Photonics Technology Letters > 2009 > 21 > 9 > 560 - 562
IEEE Photonics Technology Letters > 2011 > 23 > 12 > 825 - 827