supported by the National Natural Science Foundation of China (60536010, 60606019, 60777029, and 60820106004);the National Basic Research Program of China(2006CB604902, 2006CB302806,2006dfa11880, and 2009AA03Z409);the Meteorology Industry Research Project of China (GYHY200806033)
A new scheme based on the electrical-filtered optical heterodyne technique is proposed for measuring the tuning speed of tunable distributed Bragg reflector (DBR) lasers. In this scheme, a 10 GHz high-pass electrical ...