Single-band add-drop filters using anti-reflection, contradirectional couplers
Publication Type:Conference Paper
Source:IEEE Group IV Photonics Conference, San Diego, USA, p.WA7 (2012)
We demonstrate a wide-bandwidth add-drop filter using SOI contradirectional couplers with a novel anti-reflection design. Single-band operation, with a bandwidth of 6.5nm and an extinction ratio of over 20dB, has been experimentally obtained.