An integrated coupled-cavity 16-wavelength digitally tunable laser

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...

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Bibliographic Details
Published in:	IEEE photonics technology letters Vol. 14; no. 12; pp. 1653 - 1655
Main Authors:	den Besten, J.H., Broeke, R.G., van Geemert, M., Binsma, J.J.M., Heinrichsdorff, R., van Dongen, T., Bente, E.A.J.M., Leijtens, X.J.M., Smit, M.K.
Format:	Journal Article
Language:	English
Published:	New York IEEE 01-12-2002 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Channel spacing Channels Interference Joining Laser cavities Lasers Multiplexing Optical coupling Optical waveguides Semiconductor lasers Semiconductor optical amplifiers Semiconductor waveguides Tunable circuits and devices Tunable lasers Waveguide lasers Wavelength measurement Wavelengths
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Summary:	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.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 ObjectType-Article-2 ObjectType-Feature-1
ISSN:	1041-1135 1941-0174
DOI:	10.1109/LPT.2002.804667