Title :
Compact Optical Comb Generator Using InP Tunable Laser and Push-Pull Modulator
Author :
Slavik, R. ; Farwell, Selina G. ; Wale, M.J. ; Richardson, D.J.
Author_Institution :
Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK
Abstract :
We have investigated the suitability of InP-based push-pull modulators to generate flat optical comb spectra. The residual amplitude modulation that was a consequence of driving the modulator well above its design voltage (up to 4 Vπ) is demonstrated to have no adverse effect for the comb generation. We also demonstrate generation of a comb with spacing equal to twice the repetition rate via control of the relative phase of the RF signals.
Keywords :
III-V semiconductors; amplitude modulation; indium compounds; laser tuning; optical frequency combs; optical modulation; semiconductor lasers; InP; InP tunable laser; InP-based push-pull modulators; RF signals; compact optical comb generator; design voltage; flat optical comb spectra; repetition rate; residual amplitude modulation; Bandwidth; Frequency modulation; Indium phosphide; Optical modulation; RF signals; Radio frequency; Mach-Zehnder modulator; Optical frequency comb; semiconductor optical modulator;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2014.2365259
