Title :
Fast heterodyne optical phase-lock loop using double quantum well laser diodes
Author :
Ramos, R.T. ; Seeds, Alwyn J.
Author_Institution :
Dept. of Electron. & Electr. Eng., Univ. Coll. London, UK
Abstract :
The first experimental demonstration is reported of a heterodyne optical phase-lock loop (OPLL) using semiconductor lasers without external cavities or other linewidth narrowing methods. For a total loop propagation delay of 3 ns and a loop filter bandwidth of 700 MHz, a phase error variance of 1.02 rad2 was achieved in 500 MHz measurement bandwidth.
Keywords :
laser beam applications; optical communication equipment; phase-locked loops; semiconductor junction lasers; 3 ns; 700 MHz; double quantum well laser diodes; experimental demonstration; fast heterodyne optical PLL; loop filter bandwidth; loop propagation delay; phase-lock loop; semiconductor lasers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920050
