A ridge width varied two-section index-coupled DFB self-pulsation laser with a wide continuously tunable frequency range

A 1.55 mu m InGaAsP-InP index-coupled two-section DFB self-pulsation laser (SPL) with a varied ridge width has been fabricated. A record wide self-pulsation tuning range above 450 GHz has been achieved for this index-coupled DFB SPL. Furthermore, frequency locking to an optically injected modulated signal is successfully demonstrated.

National Natural Science Foundation of China 60736036 904010256070600960777021National Key Basic Research Programme of China 2006CB604901 2006CB604902 National High Technology Research and Development Program of China 2007AA03Z419 2007AA03Z417 This work was supported by the National Natural Science Foundation of China (Grant Nos 60736036, 90401025, 60706009, 60777021), the National Key Basic Research Programme of China (Grant Nos 2006CB604901, 2006CB604902) and the National High Technology Research and Development Program of China (Grant Nos 2007AA03Z419, 2007AA03Z417).