论文信息 - High-frequency modulation characteristics in 1.5 mu m compressively strained multiquantum well lasers with large number of wells

High-frequency modulation characteristics in 1.5 mu m compressively strained multiquantum well lasers with large number of wells

The high-frequency modulation characteristics in 1.5 μm compressively strained multiquantum well (MQW) lasers with a large number of wells (Nw = 20) are measured using an optical modulation technique. The damping K factor and differential gain are improved by increasing the number of wells. The nonlinear gain coefficient is nearly the same. For a 20 well MQW laser with 1.5% strain, the 3 dB bandwidth is estimated to be 29 GHz at 15 mW output.

[1] K. Takahata,et al. Gain saturation coefficients of strained-layer multiple quantum-well distributed feedback lasers , 1991, IEEE Photonics Technology Letters.

[2] D. M. Cooper,et al. Zero-net-strain and conventionally strained InGaAsP/InP multiquantum well lasers , 1992 .

[3] Measurement of the fundamental modulation response of a semiconductor laser to millimeter wave frequencies by active‐layer photomixing , 1989 .