Mode-Hop-Free and Electrically Wavelength-Tunable Laser Array with 39.5 nm Tuning Range using Tunable Distributed Amplification DFB Structure

An electrically wavelength-tunable laser array with tunable distributed amplification (TDA) DFB structure has been developed for the first time. A tuning range of 39.5 nm has been achieved by monolithic array of 8-channel mode-hop-free lasers