Continuous wave operation of long wavelength (lambda similar or equal to 11 mu m) inter-miniband lasers
11 May 2000
A long wavelength (1 similar or equal to 11 mu m) quantum cascade laser based on inter-miniband transitions in semiconductor superlattices is reported. The device operates continuous wave up to a temperature of 85K, with a maximum output power of 75mW at 25K, both record values for unipolar lasers of comparable wavelength.