TUNABLE MIDINFRARED GENERATION BY DIFFERENCE-FREQUENCY MIXING OF DIODE-LASER WAVELENGTHS IN INTERSUBBAND INGAAS/ALAS QUANTUM-WELLS

被引：29

作者：

CHUI, HC ^{[1
]}

WOODS, GL ^{[1
]}

FEJER, MM ^{[1
]}

MARTINET, EL ^{[1
]}

HARRIS, JS ^{[1
]}

机构：

[1] STANFORD UNIV,CTR NONLINEAR OPT MAT,STANFORD,CA 94305

来源：

APPLIED PHYSICS LETTERS | 1995年 / 66卷 / 03期

关键词：

D O I：

10.1063/1.113512

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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. © 1995 American Institute of Physics.

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页码：265 / 267

页数：3

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