Continuous wave operation of GaInP/AlGaInP DFB lasers at room temperature is reported. The DFB lasers in ridge waveguide geometry show stable singlemode emission with a sidemode suppression > 30 dB and a threshold current of 25.9 mA at 20°C. Singlemode operation could be achieved for a large temperature range between –10 and 40°C. Even for 40°C the threshold current remains below 50 mA.
Low threshold CW operation of GaInP/AlGaInP DFB lasers at 680 nm
1997-07-31
2 pages
Aufsatz (Zeitschrift)
Englisch
-10 to 40 C , distributed feedback lasers , continuous wave operation , gallium compounds , ridge waveguide geometry , III-V semiconductors , 680 nm , DFB lasers , aluminium compounds , room temperature operation , low threshold CW operation , indium compounds , GaInP-AlGaInP , stable singlemode emission , 20 C , laser modes , laser transitions , semiconductor lasers , ridge waveguides , waveguide lasers , 25.9 mA
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