Title :
Proton implanted VCSEL´s for 3 Gb/s data links
Author :
Fiedler, U. ; Moller, B. ; Reiner, G. ; Wiedenmann, D. ; Ebeling, K.J.
Author_Institution :
Abteilung Optoelektronik, Ulm Univ., Germany
Abstract :
Transverse single-mode and multimode intensity modulated butt-coupled InGaAs vertical cavity surface emitting lasers (VCSEL)s are investigated as a light source for optical fiber communication systems. Data transmission at 3 Gb/s with a bit error rate (BER) of less than 10/sup -11/ is reported for both 4.3 km of standard fiber, as well as 0.5 km of multimode graded-index fiber, 10-μm active diameter single-mode VCSELs are shown to have lower mode competition noise requiring 3 dB and 6 dB less power at the front end receiver at a BER of 10/sup -11/ compared to 19-μm and 50-μm active diameter devices, respectively. In data transmission with multimode VCSELs, the dispersion penalty is lower than for single-mode sources since the noise at the receiver is mainly determined by transmitter-mode competition noise.
Keywords :
III-V semiconductors; electro-optical modulation; gallium arsenide; gradient index optics; indium compounds; ion implantation; laser cavity resonators; laser modes; laser noise; optical fibre communication; optical fibre dispersion; optical receivers; optical transmitters; quantum well lasers; surface emitting lasers; 0.5 km; 19 mum; 3 Gbit/s; 4.3 km; 50 mum; InGaAs; InGaAs quantum well lasers; active diameter devices; active diameter single-mode VCSELs; bit error rate; butt-coupled VCSELs; data links; data transmission; dispersion penalty; front end receiver; light source; lower mode competition noise; multimode VCSELs; multimode graded-index fiber; multimode intensity modulated; optical fiber communication systems; proton implanted VCSEL; transmitter-mode competition noise; transverse single-mode lasers; vertical cavity surface emitting lasers; Bit error rate; Data communication; Fiber lasers; Indium gallium arsenide; Intensity modulation; Optical fiber communication; Optical modulation; Protons; Surface emitting lasers; Vertical cavity surface emitting lasers;
Journal_Title :
Photonics Technology Letters, IEEE
