Volume 4 Issue 6
Dec.  2011
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WANG San, XU Hong-chun. Compensation for extinction ratios of optical modules[J]. Chinese Optics, 2011, 4(6): 648-653.
Citation: WANG San, XU Hong-chun. Compensation for extinction ratios of optical modules[J]. Chinese Optics, 2011, 4(6): 648-653.

Compensation for extinction ratios of optical modules

  • Received Date: 12 Sep 2011
  • Rev Recd Date: 19 Nov 2011
  • Publish Date: 25 Dec 2011
  • A new way of extinction ratio compensation for optical modules is proposed. According to the driver current with different temperatures, combined with the calculating methods for the optical power and extinction ratio, the curves of the laser power with current and voltage changings are simulated. And then the modulation current on principle is adjusted to keep the stability of extinction ratio. The compensation way solves the problem of bad laser efficiency uniformity and extends the value of slope efficiency about ten percent. The proposed method improves utilization and yield products, and reduces product costs.

     

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