Journal article
Pulse delay measurements in cascaded quantum well gain and absorber media
A tunable delay of ultrashort laser pulses in semiconductor waveguide structures are demonstrated in cascaded amplifying and absorbing semiconductor waveguides and compared with a single sectioned waveguide. The single sectioned waveguide shows a low transmission at the maximum delay. This is effectively avoided with the cascaded waveguide configuration, where it is demonstrated viable achieving a net pulse delay while maintaining a transmission of unity.
For both type of devices, a pulse advancement is observed, at large pulse energies, that existing models are unable to account for.
| Language: | English |
|---|---|
| Publisher: | IEEE |
| Year: | 2010 |
| Pages: | 365-367 |
| ISSN: | 19410174 and 10411135 |
| Types: | Journal article |
| DOI: | 10.1109/LPT.2009.2039349 |
| ORCIDs: | Yvind, Kresten and Mørk, Jesper |
Gain measurement Propagation delay Pulse amplifiers Pulse measurements Quantum cascade lasers Quantum well lasers Quantum wells Quantum-well (QW) devices Semiconductor lasers Semiconductor waveguides Tunable circuits and devices absorber media amplification cascaded quantum well gain high-speed optical techniques light absorption optical communication equipment optical delay lines optical waveguides pulse delay measurement semiconductor waveguide structures semiconductor waveguides ultrashort laser pulse tunable delay
