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Continuous-wave dual-wavelength lasing in a two-section vertical-cavity laser

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7 Author(s)
M. Brunner ; Avalon Photonics Ltd., Zurich, Switzerland ; K. Gulden ; R. Hovel ; M. Moser
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A vertical-cavity surface-emitting laser with two monolithically grown cavities is presented. The three-terminal device allows current injection into the active regions of both cavities. Under various injection conditions, the device lases continuous wave on either one of the two longitudinal modes supported by the cavity, or on both wavelengths simultaneously. By using a constant injection current in the bottom cavity, and adjusting the current in the top cavity, the device shows all four possible emission states. These are the off states, lasing at the short wavelength /spl lambda//sub S/, at the long wavelength /spl lambda//sub L/, and at both /spl lambda//sub S/ and /spl lambda//sub L/ at the same time.

Published in:

IEEE Photonics Technology Letters  (Volume:12 ,  Issue: 10 )