We present new classes of E-O modulators and frequency converters based on L-valley intersubband transitions in GaSb-based QW systems. Effective-mass anisotropy and the tilt of the growth direction with respect to the principal axes of the ellipsoidal constant-energy surfaces of L valleys enable these novel devices to operate at normal incidence. An additional advantage of the GaSb-based QW system is that the large conduction-band offset of the GaSb/AlSb system (up to 1 eV) allows operation over a wide infrared range covering longwave (8-12 /spl mu/m), midwave (3-5 /spl mu/m), and even shorter wavelengths.
Intersubband electro-optics and frequency conversion at normal incidence
Proceedings of LEOS'94 ; 1 ; 23-24 vol.1
01.01.1994
123118 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Intersubband Electro-Optics and Frequency Conversion at Normal Incidence
British Library Conference Proceedings | 1994
|Towards Normal Incidence Intersubband Infrared Detection
NTRS | 2001
|British Library Conference Proceedings | 1995
|Quantum Well Intersubband Nonlinear Optics: Beyond Perturbation Theory
British Library Conference Proceedings | 1994
|