A photonic band gap structure device and method for delaying photonic signals of a predetermined frequency and a predetermined bandwidth by a predetermined delay is provided. A Fabry-Perot delay line device has several regions of periodically alternating refractive material layers which exhibit a series...http://www.google.de/patents/US6343167?utm_source=gb-gplus-sharePatent US6343167 - Photonic band gap device and method using a periodicity defect region to increase photonic signal delay
