Abstract
InGaAsSb/AlGaAsSb type-I midinfrared diode lasers emitting continuous wave at 2.4 μm at room temperature have been studied under high hydrostatic pressure. When the pressure was increased up to 19 kbar. the threshold current varied from 240 to 400 A/cm2, showing a minimum of 200 A/cm 2 close to 8 kbar, and the emission spectra shifted to shorter wavelengths by up to 700 mm (i.e., from 2.4 μm to 1.7 μm). This exceptional tuning range could be very useful in tunable diode laser absorption spectroscopy.
Original language | English |
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Pages (from-to) | 4292-4294 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 85 |
Issue number | 19 |
DOIs | |
Publication status | Published - 8 Nov 2004 |
Externally published | Yes |