
laser at different D. In essence, the injection-locked VCSEL cavity works as an
amplifier with a detuning-controlled gain level, thus a detuning-controlled Q
factor, which can greatly enhance the RF response when the red side (lower
frequency) modulation sideband coincides with the red shifted cavity resonance.
Based on the above understanding, a model of a Fabry–Perot (F–P) structure
with detuning-controlled gain in the cavity can be establish ed to describe an OIL
laser acting as a variable-Q amplifier, thus resulting in the drastic resonance
frequency enhancement and detuning-dependent RF response [34]. As shown in
Figure 6.8(a), when the frequency ...