1984/03/15 by L.D. Westbrook, A.W. Nelson, P.J. Fiddyment +2
Engineering · Physics and Astronomy · #Photonic and Optical Devices #GaN-based semiconductor devices and materials #Semiconductor Quantum Structures and Devices
paper · doi:10.1049/el:19840151
CW operation of 1.5 μm ridge-waveguide DFB lasers is reported for the first time. The ridge-waveguide DFB laser structure offers the prospect of high modulation speeds due to the absence of parasitic capacitances associated with reverse-biased current-blocking layers. These devices also represent the first report of CW operation of DFB lasers fabricated using the hybrid LPE/MOCVD crystal-growth technique and also of DFB lasers with gratings produced by electron-beam lithography.