Fig. 6: Characterization of wavelength shift for lasers on InP and InPOS with increasing temperature.

Lasing spectra for 8 µm × 1500 μm lasers on (a) bulk InP and (b) InPOS under CW mode at different temperatures. c Temperature dependence of the lasing wavelength for lasers on the bulk InP and InPOS under CW mode. Lasing spectra for 8 µm × 1500 μm lasers on (d) bulk InP and (e) InPOS under pulsed mode at different temperatures. f Temperature dependence of the lasing wavelength for lasers on the bulk InP and InPOS under pulsed mode