Highly strained GaAs-based all-epitaxial oxide confined vertical cavity surface emitting lasers (VCSELs) emitting in 1.25 μm were fabricated. Compared with the designed cavity resonance, it was found that lasing wavelength blue shifted by 29 nm when the driving current was small. The observation of such oxide mode is attributed to the effective optical thickness shrinkage of the oxide layer, and large detuning between the gain peak and cavity resonance.
|Number of pages||4|
|Journal||Materials Science and Engineering B: Solid-State Materials for Advanced Technology|
|State||Published - 25 Jul 2005|
- Highly strain
- Oxide mode