Tunable mid‐infrared generation by difference frequency mixing of diode laser wavelengths in intersubband InGaAs/AlAs quantum wells

Content Provider	Semantic Scholar
Author	Chui, Herman C. Woods, G. L. Fejer, Martin M. Martinet, Eric L. Harris, James S.
Copyright Year	1995
Abstract	We demonstrate difference frequency generation (DFG) of 8.66–11.34 μm wavelength light in intersubband InGaAs/AlAs quantum wells by mixing of 1.92 μm±25 nm and 2.39 μm±39 nm. The peak DFG second order nonlinear susceptibility χ(2) is measured to be 12±1 nm/V, more than 65 times that of GaAs, at a difference frequency output wavelength of 9.50 μm. The intersubband absorption for the 1–2 and 1–3 transitions is measured to be 9.3 and 2.1 μm, respectively. Second harmonic generation (SHG) of 4.76, 5.12, and 5.36 μm light with a CO2 laser is observed with a peak SHG χ(2) of 52±3 nm/V. Good agreement of experiment with theory is found for both the linear and nonlinear optical properties. This demonstration of mid‐infrared DFG opens the possibility for monolithic diode laser pumps and compact waveguide frequency converters as tunable midinfrared sources.
Starting Page	265
Ending Page	267
Page Count	3
File Format	PDF HTM / HTML
DOI	10.1063/1.113512
Volume Number	66
Alternate Webpage(s)	http://stanford.edu/group/fejer/cgi-bin/drupal/fejerpubs/1995/81.pdf
Alternate Webpage(s)	https://doi.org/10.1063/1.113512
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article