1. COSI-CTF3Flexible Optical Current Transformerhttp://www.nxtphase.com/products-nxctf3.php
2. MOCT-Magneto-Optic Current Transducerhttp://www.abb.com/product/db0003db002618/c12573e7003302adc1256eaf002cc96f.aspx
3. Optical Current Transformerhttp://www.arteche.com/web/frontoffice/verproducto.aspx?id_prod=229&idioma=2
4. Optical Current Sensorshttp://www.airak.com/Products%20Page.htm
5. Handbook of Optical Fiber Sensing Technology;López-Higuera,2001