| Zugriffsnummer |
46078 |
| Dokumenttyp |
Zeitschriftenartikel
|
| Peer Review |
mit Peer Review |
| Sprache |
Englisch
|
| Titel |
Quasi-phasematching in a poled Josephson traveling-wave parametric amplifier with three-wave mixing |
| Autor(in); Institution |
Zorin, Alexander B.; 2.4, Quantenelektronik, PTB-Braunschweig
|
| Quelle/Jahr |
Applied Physics Letters: 118
(2021), 222601-1
- 222601-5
|
| ISSN |
0003-6951 (PRINT) ; 1077-3118 (ONLINE)
|
| DOI |
|
| URL |
|
| Verlag |
Melville, NY: AIP
|
| Zusammenfassung |
We develop the concept of quasi-phasematching (QPM) by implementing it in the recently proposed Josephson traveling-wave parametric amplifier (JTWPA) with three-wave mixing (3WM). The amplifier is based on a ladder transmission line consisting of flux-biased radio-frequency SQUIDs whose nonlinearity is of non-centrosymmetric type. QPM is achieved in the 3WM process due to designing the TWPA to include periodically inverted groups of these SQUIDs that reverse the sign of the nonlinearity. Modeling shows that the JTWPA bandwidth is relatively large and flat, while unwanted modes, including high-frequency mixing modes, are strongly suppressed with the help of engineered dispersion. |
