Ct. Chang et al., HIGH-ENERGY (59 PJ) AND LOW-JITTER (250 FS) PICOSECOND PULSES FROM GAIN-SWITCHING OF A TAPERED-STRIPE LASER-DIODE VIA RESONANT DRIVING, IEEE photonics technology letters, 8(9), 1996, pp. 1157-1159
High-energy (59 pJ), low-jitter (250 fs), high-extinction ratio (800),
and short (14.5 ps FWHM) pulses were generated by gain-switching of a
tapered stripe gain-guided laser diode (LD) via resonant driving, The
se characteristics are attributed to a stable single-mode near-field p
attern, a single-lobe far-field pattern, and multilongitudinal modes a
ssociated with the tapered stripe LD under high driving current pulses
, These pulses from a comb generator were enhanced mainly from reflect
ion at the LD-transmission line impedance mismatch; the line length wa
s adjusted for resonance with the reflection from the step recovery di
ode, further increasing the driving current.