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Room-temperature continuous-wave operation of 1.54-μm vertical-cavity lasers

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9 Author(s)
Babic, D.I. ; Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA ; Streubel, K. ; Mirin, R.P. ; Margalit, N.M.
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We report on the room-temperature continuous-wave operation of vertical-cavity lasers operating at 1.54 μm. The devices use a 7 strain-compensated quantum-well active layer sandwiched between two Al(Ga)As-GaAs quarter-wave mirrors joined by wafer fusion. Five device sizes between 8 and 20 μm were found to operate continuously at room temperature (23/spl deg/C), The lowest room-temperature continuous-wave threshold current of 2.3 mA was measured on an 8-μm diameter device, while the highest continuous-wave operating temperature of 33/spl deg/C was measured on a 12-μm device.

Published in:

Photonics Technology Letters, IEEE  (Volume:7 ,  Issue: 11 )