Title :
Ultralow timing jitter picosecond pulse generation from electrically gain-switched oxidized vertical-cavity surface-emitting lasers
Author :
Zhu, B. ; White, I.H. ; Williams, K.A. ; Tan, M.R.T. ; Schneider, R.P., Jr. ; Corzine, S.W. ; Wang, S.Y.
Author_Institution :
Dept. of Electr. & Electron. Eng., Bristol Univ., UK
Abstract :
Ultralow timing jitter picosecond optical pulses are generated by electrically gain switching oxide-confined vertical-cavity surface-emitting lasers (VCSELs) at repetition rates of up to 10.0 GHz. Timing jitter as low as 1.2 ps is measured, which is at least four times lower than that measured for implanted VCSELs. The ultralow timing jitter is attributed to the high level of spontaneous coupling in the oxide-confined VCSEL due to multimode operation resulting from the index guiding properties of the oxide layer.
Keywords :
Q-switching; distributed Bragg reflector lasers; high-speed optical techniques; jitter; laser cavity resonators; laser modes; quantum well lasers; surface emitting lasers; 1.2 ps; 10.0 GHz; Al/sub 0.2/Ga/sub 0.8/As; AlGaAs:Si-GaAs; DBR mirror; electrically gain-switched oxidized vertical-cavity surface-emitting laser; index guiding properties; multimode operation; oxide-confined VCSEL; picosecond optical pulses; repetition rates; spontaneous coupling; ultralow timing jitter picosecond pulse generation; Bandwidth; Optical pulse generation; Optical pulses; Optical surface waves; Pulse generation; Semiconductor lasers; Surface emitting lasers; Threshold current; Timing jitter; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
