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Quantum-Dot Semiconductor Optical Amplifiers With Polarization-Independent Gains in 1.5-$\mu$m Wavelength Bands

2008; Institute of Electrical and Electronics Engineers; Volume: 20; Issue: 23 Linguagem: Inglês

10.1109/lpt.2008.2004695

1941-0174

N. Yasuoka, Kenichi Kawaguchi, H. Ebe, T. Akiyama, Mitsuru Ekawa, Ken Morito, Mitsuru Sugawara, Yasuhiko Arakawa,

Optical Network Technologies

We have demonstrated a polarization-independent gain in semiconductor optical amplifiers that have columnar quantum dots surrounded by strained side barriers in 1.5-mum wavelength bands. We obtained a polarization-dependent gain of 0.5 dB with a gain of 10 dB and a saturation output power of 18 dBm at a wavelength of 1.55 mum.