Amplifying characteristics of 1.55-/spl mu/m polarization-insensitive SOAs with MQW and strained-bulk active Layers for device application

Autor:	Yuichi Tohmori, Yasuo Shibata, Takaaki Kakitsuka, Hideo Sugiura, Masayuki Itoh, Yoshiaki Kadota
Rok vydání:	2006
Předmět:	Optical amplifier Wavelength Materials science Semiconductor business.industry Optoelectronics Spontaneous emission Optical polarization business Polarization (waves) Atomic and Molecular Physics and Optics Quantum well Active layer
Zdroj:	Journal of Lightwave Technology. 24:1478-1485
ISSN:	1558-2213 0733-8724
DOI:	10.1109/jlt.2005.863298
Popis:	Fundamental amplifying characteristics of 1.55-mum semiconductor optical amplifiers (SOAs) that contain multiquantum well (MQW) active layers with an optimized tensile strain or bulk active layers with various tensile strains were investigated. Both types of SOAs have their own merits and demerits. For device application in networks, driving current and wavelength in the low-polarization-sensitivity condition are very important, but they have not been clarified yet. The results of the present investigation clarify the driving current and wavelength characteristics of low-polarization-sensitivity SOAs with MQW and strained-bulk active layers. The low-polarization-sensitivity condition of SOAs with a strained-bulk active layer is shown to have a very wide range of driving current and wavelength for network-device application. These results, with other requirements taken into account, provide guidelines for choosing the type of SOA most suitable for a given application
Databáze:	OpenAIRE
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