IEEE Photonics Technology Letters
IEEE Photonics Technology Letters > 2009 > 21 > 8 > 540 - 542
IEEE Photonics Technology Letters > 2009 > 21 > 10 > 654 - 656
IEEE Photonics Technology Letters > 2009 > 21 > 8 > 540 - 542
IEEE Photonics Technology Letters > 2009 > 21 > 10 > 654 - 656