Distributed Bragg reflector laser (1.8 \mu m) with 10 nm wavelength tuning range

We report a 1.8 \mu m two-section distributed Bragg reflector laser using butt-jointed InGaAsP bulk material as the waveguide core layer. The threshold current is 17 mA and the output power is 8 mW on average. The threshold current, output power, and emitting wavelength dependences on temperature ar