IM/optical label-packet modulation signals 100 km transmission over standard single mode fiber using mid-span spectral inversion by four-wave mixing in an SOA * Xin Xiang-Jun(忻向军) a) † , Ma Jian-Xin(马建新) a) , Zhang Qi(张 琦) a) , Deng Chao-Gong(邓超公) a)b) , Wang Kui-Ru(王葵如) a) , Yu Chong-Xiu(余重秀) a) , and Liu Bo(刘 博) a)