Open AccessDelay Time Reduction in VCSELs by Optimizing Laser Parameters
Author(s) -
Hisham Hisham
Publication year - 2016
Publication title -
iraqi journal for electrical and electronic engineering/al-maǧallaẗ al-ʻirāqiyyaẗ al-handasaẗ al-kahrabāʼiyyaẗ wa-al-ilikttrūniyyaẗ
Language(s) - English
Resource type - Journals
eISSN - 2078-6069
pISSN - 1814-5892
DOI - 10.37917/ijeee.12.2.4
Subject(s) - ton , laser , materials science , volume (thermodynamics) , reduction (mathematics) , optics , rate equation , optoelectronics , physics , mathematics , thermodynamics , kinetics , geometry , quantum mechanics , fishery , biology
An extensive analysis on reducing the turn-on time delay (ton) in vertical cavity surface emitting lasers (VCSELs) has conducted successfully by considering all the recombination rate coefficients R(N) Besides the R(N) coefficients, the impact of other laser parameters such as, injection current (Iinj), laser cavity volume (V),mirror reflectivity (R), and operating temperature (T) also have investigated. Unlike pervious studies, the temperature dependence (TD) of ton is calculated according to TD of laser parameters instead of well-known Pankove relationship. Results showed that, ton can be reduced by increasing the Iinj and/or the Ni. Meanwhile, the ton increases by increasing the R(N) coefficients. Also, results showed that the ton can be reduced by increasing the R-level or by optimizing laser cavity volume.