Title :
Access to 20 evenly distributed wavelengths over 100 nm using only a single current tuning in a four-electrode monolithic semiconductor laser
Author :
Rigole, Pierre-Jean ; Nilsson, Stefan ; Bäckbom, Lena ; Klinga, Tiina ; Wallin, Johan ; Stalnacke, B. ; Berglind, Eilert ; Stoltz, Bjöm
Author_Institution :
Dept. of Electron., R. Inst. of Technol., Kista, Sweden
Abstract :
We report improved tuning regularity in a vertical grating assisted codirectional coupler laser with a super-structure grating distributed Bragg reflector (GCSR). Access to 20 wavelengths with SMSR better than 20 dB within a tuning range of 100 nn was obtained with a single current control in a GCSR laser. The total tuning behavior shows a potential of complete wavelength coverage over 100 nm by use of three tuning currents.<>
Keywords :
diffraction gratings; distributed Bragg reflector lasers; electrodes; laser tuning; optical directional couplers; semiconductor lasers; waveguide lasers; 1545 to 1560 nm; 20 wavelengths; GCSR; evenly distributed wavelengths; four-electrode monolithic semiconductor laser; improved tuning regularity; single current control; single current tuning; super-structure grating distributed Bragg reflector; total tuning behavior; tuning range; vertical grating assisted codirectional coupler laser; Bandwidth; Bragg gratings; Distributed Bragg reflectors; Laser tuning; Optical coupling; Optical reflection; Optical tuning; Sampling methods; Semiconductor lasers; Waveguide lasers;
Journal_Title :
Photonics Technology Letters, IEEE
