Mode locking features of single section quantum dash based lasers are investigated. Particular interest is given to the static spectral phase profile determining the shape of the mode locked pulses. The phase profile dependence on cavity length and injection current is experimentally evaluated, demonstrating the possibility of efficiently using the wide spectral bandwidth exhibited by these quantum dash structures for the generation of high peak power sub-picosecond pulses with low radio frequency linewidths.

No abstract

This corrects the article DOI: 10.1103/PhysRevLett.118.127402.

Several applications are pushing the development of high performance mode-locked lasers: generation of short pulses for extremely high bit rate transmission at 100 Gb/s and beyond, all-optical MLLs. For instance, they are very compact, with a length usually not exceeding 4 mm. The pulse repetition rate can be as high as 500 GHz [4]. They are very efficient, having a high power conversion efficiency.