Influence of Fiber-Bragg Grating-Induced Group-Delay Ripple in High-Speed Transmission Systems. - Ekawit Tipsuwannakul; Jianqiang Li; Tobias A. Eriksson; Lars Egnell; Fredrik Sjöström; Johan Pejnefors; Peter A. Andrekson; Magnus Karlsson 001 (JOCN, 2012)