Tunable squeezing using coupled ring resonators on a silicon nitride chip.
Opt Lett
; 41(2): 223-6, 2016 Jan 15.
Article
em En
| MEDLINE
| ID: mdl-26766679
ABSTRACT
We demonstrate continuous tuning of the squeezing-level generated in a double-ring optical parametric oscillator by externally controlling the coupling condition using electrically controlled integrated microheaters. We accomplish this by utilizing the avoided crossing exhibited by a pair of coupled silicon nitride microring resonators. We directly detect a change in the squeezing level from 0.5 dB in the undercoupled regime to 2 dB in the overcoupled regime, which corresponds to a change in the generated on-chip squeezing factor from 0.9 to 3.9 dB. Such wide tunability in the squeezing level can be harnessed for on-chip quantum-enhanced sensing protocols that require an optimal degree of squeezing.
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MEDLINE
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En
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Opt Lett
Ano de publicação:
2016
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Article