Wide-Band Polarization-Insensitive High-Output-Power Semiconductor Optical Amplifier Based on Thin Tensile-Strained Bulk InGaAs

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2004,（2）
• 页码范围: 310-312
• 页数: 3页
• 语种: 英文

摘要

A polarization-insensitive semiconductor optical amplifier (SOA) with a very thin active tensile-strained InGaAs bulk has been fabricated. The polarization sensitivity of the amplifier gain is less than 1 dB over both the entire range of driving current and the 3dB optical bandwidth of more than 80nm. For optical signals of 1550nm wavelength, the SOA exhibits a high saturation output power +7.6dBm together with a low noise figure of 7.5dB, fibre-to-fibre gain of 11.5dB, and low polarization sensitivity of 0.5dB. Additionally, at the gain peak 1520nm, the fibre-to-fibre gain is measured to be 14.1 dB.