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22-GHz modulation bandwidth of long cavity DBR laser by using a weakly laterally coupled grating fabricated by focused ion beam lithography

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7 Author(s)

A 22-GHz directly modulated 3-dB bandwidth could be obtained by 1.3-mm-long weakly laterally coupled distributed Bragg reflector lasers fabricated by focused ion beam lithography. In addition to a high bandwidth, the lasers show a stable emission spectrum with side-mode suppression ratios of more than 40 dB and output powers exceeding 20 mW.

Published in:

IEEE Photonics Technology Letters  (Volume:16 ,  Issue: 1 )