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An integrated coupled-cavity 16-wavelength digitally tunable laser

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9 Author(s)
den Besten, J.H. ; Fac. of Electr. Eng., Eindhoven Univ. of Technol., Netherlands ; Broeke, R.G. ; van Geemert, M. ; Binsma, J.J.M.
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We present a digitally tunable laser that was realized by coupling two wavelength periodical four-channel lasers. The lasers were coupled with a multimode interference coupler, in such a way that the device has a common intracavity output waveguide containing the full multiplexed signal. In the two laser cavities, 1 /spl times/ 4 PHASARs were used with a channel spacing of 100 and 400 GHz, respectively. By coupling each PHASAR to four semiconductor optical amplifiers, 4 /spl times/ 4 channels were generated. The measured SMSR for each of the 16 wavelengths is better than 40 dB.

Published in:

Photonics Technology Letters, IEEE  (Volume:14 ,  Issue: 12 )

Date of Publication:

Dec. 2002

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