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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 2,
  • Issue 4,
  • pp. 226-228
  • (2004)

Integrated electroabsorption-modulated DFB laser by using an improved butt-joint method

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Abstract

An improved butt coupling method is used to fabricate an electroabsorption modulator (EAM) monolithically integrated with a distributed feedback (DFB) laser. The obtained electroabsorption-modulated laser (EML) chip with the traditional shallow ridge exhibits very low threshold current of 12 mA, output power of more than 8 mW, and static extinction ratio of -7 dB at the applied bias voltage from 0.5 to -2.0 V.

© 2005 Chinese Optics Letters

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