Abstract
We present the first polarization studies of femtosecond gain dynamics in strained-layer multiple-quantum-well laser amplifiers. We observe a response consistent with spectral hole burning when the diode is biased in the absorbing regime. In the gain regime, we show that the carriers are heated by free-carrier absorption and that there is a measurable delay (∼200 fs) in the thermalization of the hot-carrier distribution. Subsequent cooling to the lattice temperature follows with a time constant of ∼1 ps.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
