1. ITU-T Recommendation G.984.1. https://www.itu.int/rec/dologin pub.asplang=e&id=T-REC-G.984.1-200803-I!!PDF-E&type=items.
2. ITU-T Recommendation G.694.1. https://www.itu.int/rec/dologin pub.asplang=e&id=T-REC-G.694.1-201202-I!!PDF-E&type=items.
3. http: // www.enablence.com / technologies / wp-content /uploads/2013/07/Datasheet OCSD AWG Athermal 50GHz.pdf.
4. http://www.kaiamcorp.com/media/KAIAM%2096Ch%2050GHz%20Athermal%20AWG.pdf.
5. http://ppitek.com/english/sub/goods detail.asp?num=23&linked=3&linked s=42.