Temperature invariant lasing and gain spectra in self-assembled GaInAs quantum wire Fabry-Perot lasers

Wohlert, D. E.; Cheng, K. Y.; Chou, S. T.
February 2001
Applied Physics Letters;2/19/2001, Vol. 78 Issue 8, p1047
Academic Journal
GaInAs quantum wire (QWR) heterostructures have been grown by molecular beam epitaxy using the strain-induced lateral-layer ordering (SILO) process. Broad-area Fabry-Perot QWR lasers have been fabricated from this material. The lasing wavelength from the QWR laser shifts at a rate of 0.9 Å/°C between 77 and 300 K compared to 4.6 Å/°C for a quantum well laser control sample. Furthermore, the gain spectra of the QWR laser are derived from the amplified spontaneous emission spectra at 77 and 300 K using the Hakki-Paoli method. The gain peak is also stabilized against temperature changes indicating that temperature stable lasing behavior seen in SILO grown GaInAs QWR Fabry-Perot laser diodes is due to a temperature stable band gap. © 2001 American Institute of Physics.


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