… quantum dash gain medium has been reported to date. This paper addresses the nature of
the quantum dash … evident that the dash assembly resembles a closely packed quantum wire …

… We can see that the threshold is reduced by 15% and the slope efficiency is improved to
about 0.19 W/A per facet. Output powers exceeding 150 mW per facet could be detected. …

… In the presence of non-radiative recombination, non-pinning will further decrease the output
power and the slope efficiency because of a significant reduction in the number of carriers …

… state level is not confined within the InAs quantum dashes, but instead is confined in the
quantum well layer. This remains true when we increase the dash density to higher values [19]. …

… All lasers show comparable slope efficiency (∼0.12 W/A). The summary of laser performances
is tabulated in Table I. The notable reduction in Jth from the control lasers with respect to …

… We find that doping the dashes with light donor concentration increases the unsaturated …
slope efficiency and a decrease in the transparency current which makes N-type quantum dash …

… An optical power of >140 mW is exhibited by the device at all T s values from 14 C to 40 C
while the threshold current (slope efficiency) is found to increase (reduce) with increase in T s , …

… quantum dash (QD) materials for lasers and amplifiers, and … We investigate both InAs/InP
dashes in a barrier and dashes in a … The slope efficiency is measured to be as high as 1.9 GHz/ …

… in these so-called quantum dashes (QDashes) lead to an … range than possible with
conventional quantum well designs [7]. … threshold current of 46 mA, slope efficiency of 0.03 W/A …

… 1 for both the QDash and QDot devices, showing threshold currents of about 24 mA and 19
mA and slope efficiencies of 19% and 28%, respectively. The turn-on voltage is 0.8 V for both …