High-gain quantum-dot semiconductor optical amplifier for 1300 nm

作者：Bakonyi Z^*; Su H; Onishchukov G; Lester LF; Gray AL; Newell TC; Tunnermann A

来源：IEEE Journal of Quantum Electronics, 2003, 39(11): 1409-1414.

DOI：10.1109/JQE.2003.818306

• quantum dots (QDs)
• quantum-dot optical amplifiers
• semiconductor lasers
• semiconductor optical amplifiers (SOAs)

Using an AlGaAs-GaAs waveguide structure with a six-stack InAs-InGaAs "dots-in-a-well" (DWELL) gain region having an aggregate dot density of approximately 8 x 10(11) cm(-2), an optical gain of 18 dB at 1300 nth has been obtained in a 2.4-mm-long amplifier at 100-mA pump current. The optical bandwidth is 50 nm, and the output saturation power is 9 dBm. The dependence of the amplifier parameters on the pump current and the gain recovery dynamics has also been studied.

• 出版日期2003-11