High-performance 1.52 µm InAs/InP quantum dot distributed feedback laser

High-performance 1.52 µm InAs/InP quantum dot distributed feedback laser

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A high performance ridge-waveguide InAs/InP quantum dot distributed feedback laser around 1.52 µm with a cavity length of 1 mm and a stripe width of 3 µm is demonstrated. In continuous-wave operation singlemode output power was up to 18.5 mW and its sidemode suppression ratio was greater than 62 dB. The relative intensity noise was measured to be less than −154 dB/Hz from 10 MHz to 10 GHz, and the optical linewidth smaller than 150 kHz when the injection current was 200 mA at room temperature of 18°C.


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      • Lu, Z.G., Poole, P.J., Barrios, P.J., Jiao, Z.J., Liu, J.R., Pakulski, G., Goodchild, D., Rioux, B., SpringThorpe, A.J., Poitras, D.: `Single mode 1.52 µm InAs/InP QD DFB lasers', Proc. Optical Fiber Communications (OFC), March 2011,, Los Angeles, CA, USA, OWD6.
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      • Z.J. Jiao , Z.G. Lu , J.R. Liu , P. Poole , P.J. Barrios , D. Poitras , X.P. Zhang . Investigation of linewidth enhancement factor of InAs/InP quantum dot semiconductor lasers. Proc SPIE , 77501C - 775011

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