Polarization switching in AlGaAs/GaAs distributed feedback lasers between the stable single longitudinal modes

TE/TM polarization mode switching is demonstrated in an AlGaAs/GaAs distributed feedback laser diode. The device has two current injecting electrodes and as an active layer a conventional multiquantum well (MQW) structure. A small amplitude modulation of the current into one of the electrodes switch...

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Bibliographic Details
Published in:Applied physics letters 1995-12, Vol.67 (23), p.3405-3407
Main Authors: Ouchi, Toshihiko, Majima, Masao, Ikeda, Sotomitsu, Ono, Takeo, Uchida, Mamoru, Handa, Yuichi
Format: Article
Language:English
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Summary:TE/TM polarization mode switching is demonstrated in an AlGaAs/GaAs distributed feedback laser diode. The device has two current injecting electrodes and as an active layer a conventional multiquantum well (MQW) structure. A small amplitude modulation of the current into one of the electrodes switches the polarization mode. Each mode corresponds to a stable single longitudinal mode of a distributed feedback laser. The lasing wavelength can be tuned continuously, without mode hopping, over 0.7 nm by controlling the total injection current. This new kind of polarization switching is promising for optical switching systems and optical frequency division multiplexing devices.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.114908