Polarization- and wavelength-insensitive guided-wave optical switch with semiconductor Y junction
1990; Institute of Electrical and Electronics Engineers; Volume: 8; Issue: 8 Linguagem: Inglês
10.1109/50.57840
ISSN1558-2213
AutoresH. Yanagawa, K. Ueki, Y. Kamata,
Tópico(s)Semiconductor Quantum Structures and Devices
ResumoA polarization- and wavelength-insensitive semiconductor guided-wave optical switch with a Y junction is proposed. The switch exhibits a digital response with respect to current, allowing its use as a wavelength-insensitive 1*2 optical switch. The switching characteristics are analyzed by using the beam propagation method, and a design example is given. The polarization- and wavelength-insensitive switching operation has been confirmed with a fabricated GaAs/GaAlAs switch at wavelengths of 1.3 and 1.55 mu m, and the on/off ratio exceeded 20 dB at an injection current of 250 mA at these wavelengths. >
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