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Low-voltage multiple quantum well reflection modulator with on:off ratio > 100:1

Low-voltage multiple quantum well reflection modulator with on:off ratio > 100:1

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We report the demonstration of a high-contrast (> 100:1), low-voltage multiple quantum well reflection modulator. The performance is achieved by using resonantly-enhanced electroabsorption in GaAs quantum wells embedded in the spacer region of an asymmetric Fabry-Pérot cavity, which is at the same time a pin diode. Optimum contrast is observed at ≃860nm with only 9 V bias and ≈3.5dB insertion loss.

References

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