Fig. 2From: InAs/GaAs Quantum Dot Dual-Mode Distributed Feedback Laser Towards Large Tuning Range Continuous-Wave Terahertz ApplicationP–I–V and temperature dependence characteristic of the LC-DFB laser. a P–I–V characteristic of the p-doped LC-DFB laser at RT. b Temperature dependences of threshold current density for undoped and p-doped LC-DFB lasers. c Temperature dependences of slope efficiency for undoped and p-doped LC-DFB lasersBack to article page