TY - JOUR
T1 - Nonlinear Dynamics of Vertical-Cavity Surface-Emitting Lasers
AU - Yu, S. F.
N1 - Funding Information:
Dr. Yu was awarded the traditional Departmental Prize by the Department of Electronics and Electrical Engineering, University College London, in the final year degree examination. He was a Fellow and Honorary Scholar of Cambridge Commonwealth Trust Society. He also held a Croucher Foundation scholarship and an overseas research student award while studying for the doctoral program. He is a member of SPIE.
PY - 1999/3
Y1 - 1999/3
N2 - The dependence of the transient response of a vertical-cavity surface-emitting laser (VCSEL) on its aperture size is investigated subject to direct current modulation and external optical feedback. It is shown that lasers with small aperture size suppress higher order bifurcations and chaos even under large-signal modulation and external optical feedback. Furthermore, the noise characteristics of VCSEL's under the influence of external optical feedback are studied via the calculation of relative intensity noise. It is found that the level of external optical feedback for the onset of coherence collapse is high for devices with small aperture size. On the other hand, the small-signal response of lasers is also analyzed through the calculation of third-order harmonic distortion. It is shown that harmonic distortion is minimized in small devices. Therefore, VCSEL's with small aperture size have better immunity to irregular response under direct current modulation and external optical feedback.
AB - The dependence of the transient response of a vertical-cavity surface-emitting laser (VCSEL) on its aperture size is investigated subject to direct current modulation and external optical feedback. It is shown that lasers with small aperture size suppress higher order bifurcations and chaos even under large-signal modulation and external optical feedback. Furthermore, the noise characteristics of VCSEL's under the influence of external optical feedback are studied via the calculation of relative intensity noise. It is found that the level of external optical feedback for the onset of coherence collapse is high for devices with small aperture size. On the other hand, the small-signal response of lasers is also analyzed through the calculation of third-order harmonic distortion. It is shown that harmonic distortion is minimized in small devices. Therefore, VCSEL's with small aperture size have better immunity to irregular response under direct current modulation and external optical feedback.
KW - Bifurcation diagrams
KW - Chaos
KW - Direct modulation
KW - External optical feedback
KW - Semiconductor device modeling
KW - Surface-emitting devices
UR - http://www.scopus.com/inward/record.url?scp=0033101377&partnerID=8YFLogxK
U2 - 10.1109/3.748838
DO - 10.1109/3.748838
M3 - Journal article
AN - SCOPUS:0033101377
SN - 0018-9197
VL - 35
SP - 332
EP - 340
JO - IEEE Journal of Quantum Electronics
JF - IEEE Journal of Quantum Electronics
IS - 3
ER -