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Continuous-wave operation of GaInNAsSb distributed feedback lasers at 1.5 /spl mu/m

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9 Author(s)
D. Gollub ; Univ. Wurzburg, Germany ; M. Kamp ; A. Forchel ; J. Seufert
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GaAs-based singlemode emission at 1.5 /spl mu/m has been realised for the first time in continuous-wave operation. GaInNAsSb active-layer material and GaAsN strain-compensating barriers have been used in combination with lateral distributed feedback. Laser diodes with a threshold current of 95 mA, an external efficiency of 0.15 W/A and a maximum output power of more than 10 mW could be demonstrated. A sidemode suppression ratio better than 31 dB could be realised at a singlemode emission wavelength of 1496 nm.

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Electronics Letters  (Volume:40 ,  Issue: 23 )