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Widely tunable (45 nm, 5.6 THz) multi-quantum-well three-branch Y3-lasers for WDM networks

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5 Author(s)
M. Kuznetsov ; AT&T Bell Lab., Holmdel, NJ, USA ; P. Verlangieri ; A. G. Dentai ; C. H. Joyner
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A widely tunable semiconductor laser structure, the three-branch Y3-laser, is demonstrated. Using a multiple-quantum-well (MQW) active region, the lasers show a tuning range of 45 nm (5.6 THz) and a sidemode suppression of 25 dB, with potential access to 120 frequency channels. The laser spectral characteristics agree well with the design. Such lasers appear promising for multichannel wavelength-division-multiplexed (WDM) optical networks.<>

Published in:

IEEE Photonics Technology Letters  (Volume:5 ,  Issue: 8 )