Improved photon-number squeezing in light-emitting diodes
- 1 June 1998
- journal article
- research article
- Published by Taylor & Francis in Journal of Modern Optics
- Vol. 45 (6) , 1147-1153
- https://doi.org/10.1080/09500349808230905
Abstract
We report photon-number squeezing measurements on high-efficiency double heterojunction AlGaAs infrared light-emitting diodes. The overall current-to-current efficiency was 0.25 at room temperature and 0.40 at 77 K, resulting in a noise reduction below the Standard Quantum Limit of 1.1 dB and 2.0dB, respectively. In addition, photocurrent correlation experiments were carried out with 2 or 3 LEDs in series, revealing a normalized correlation coefficient of 0.25 at room temperature and 0.40 at 77 K.Keywords
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