1.55-μm picosecond all-optical switching by using intersubband absorption in InGaAs-AlAs-AlAsSb coupled quantum wells

We report on the first all-optical switching operation of intersubband absorption at an optical communication wavelength (/spl sim/1.55 μm). The 1.55-μm intersubband absorption was achieved by InGaAs-AlAs-AlAsSb coupled quantum wells. A switching operation on an ultrafast signal (equivalent to 1 THz...

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Bibliographic Details
Published inIEEE photonics technology letters Vol. 14; no. 4; pp. 495 - 497
Main Authors Akiyama, T., Georgiev, N., Mozume, T., Yoshida, H., Gopal, A.V., Wada, O.
Format Journal Article
LanguageEnglish
Published IEEE 01.04.2002
Subjects
Absorption
Communication switching
Equivalence
Nonlinear optical devices
Nonlinear optics
Optical communication
Optical devices
Optical pumping
Optical waveguides
Optical wavelength conversion
Photonics
Quantum wells
Switching
Ultrafast optics
Wavelength measurement
Wavelengths
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Summary:We report on the first all-optical switching operation of intersubband absorption at an optical communication wavelength (/spl sim/1.55 μm). The 1.55-μm intersubband absorption was achieved by InGaAs-AlAs-AlAsSb coupled quantum wells. A switching operation on an ultrafast signal (equivalent to 1 THz) was successfully demonstrated with a control pulse energy as low as 27 pJ.
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ISSN:1041-1135
1941-0174
DOI:10.1109/68.992589