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RAFID A. ABDULLAH1,*
A ZnO nanowire laser (NWL) with an emission wavelength of approximately 385 nm, incorporating 0–12 pairs of distributed Bragg reflectors (DBRs), has been proposed and investigated by numerical simulation. The well-known double rate equations of the laser diode (LD) were solved numerically using the fourth-order Runge–Kutta method to analyze relaxation oscillation (RO) and photon transient response. The simulation results reveal that RO amplitude increases with increasing the number of DBR pairs, whereas the RO frequency decreases. Furthermore, the numerical results demonstrate that the turn-on delay time is significantly reduced as the DBR pair number increases, owing to the higher photon cavity lifetime.
ZnO nanowire laser, Relaxation oscillation, Turn-on delay time, Optical communication systems.
RAFID A. ABDULLAH, DBR-induced modification of turn-on delay and photon response time of ZnO nanowire lasers, Optoelectronics and Advanced Materials - Rapid Communications, 20, 1-2, January-February 2026, pp.8-11 (2026).
Submitted at: Sept. 29, 2025
Accepted at: Feb. 2, 2026
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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