Supercontinuum generation by saturated second-order nonlinear interactions
We propose a new approach to supercontinuum generation and carrier-envelope-offset detection based on saturated second-order nonlinear interactions in dispersion-engineered nanowaveguides. The technique developed here broadens the interacting harmonics by forming stable bifurcations of the pulse env...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
AIP Publishing LLC
2023-11-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0158926 |
| _version_ | 1797404805783617536 |
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| author | Marc Jankowski Carsten Langrock Boris Desiatov Marko Lončar M. M. Fejer |
| author_facet | Marc Jankowski Carsten Langrock Boris Desiatov Marko Lončar M. M. Fejer |
| author_sort | Marc Jankowski |
| collection | DOAJ |
| description | We propose a new approach to supercontinuum generation and carrier-envelope-offset detection based on saturated second-order nonlinear interactions in dispersion-engineered nanowaveguides. The technique developed here broadens the interacting harmonics by forming stable bifurcations of the pulse envelopes due to an interplay between phase-mismatch and pump depletion. We first present an intuitive heuristic model for spectral broadening by second-harmonic generation of femtosecond pulses and show that this model agrees well with experiments. Then, having established strong agreement between theory and experiment, we develop scaling laws that determine the energy required to generate an octave of bandwidth as a function of input pulse duration, device length, and input pulse chirp. These scaling laws suggest that future realization based on this approach could enable supercontinuum generation with orders of magnitude less energy than current state-of-the-art devices. |
| first_indexed | 2024-03-09T03:00:23Z |
| format | Article |
| id | doaj.art-cb1403b051c54eff8e898374d30801be |
| institution | Directory Open Access Journal |
| issn | 2378-0967 |
| language | English |
| last_indexed | 2024-03-09T03:00:23Z |
| publishDate | 2023-11-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj.art-cb1403b051c54eff8e898374d30801be2023-12-04T17:13:19ZengAIP Publishing LLCAPL Photonics2378-09672023-11-01811116104116104-1010.1063/5.0158926Supercontinuum generation by saturated second-order nonlinear interactionsMarc Jankowski0Carsten Langrock1Boris Desiatov2Marko Lončar3M. M. Fejer4NTT Research, Inc., Physics and Informatics Laboratories, 940 Stewart Drive, Sunnyvale, California 94085, USAEdward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USAJohn A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USAEdward L. Ginzton Laboratory, Stanford University, Stanford, California 94305, USAWe propose a new approach to supercontinuum generation and carrier-envelope-offset detection based on saturated second-order nonlinear interactions in dispersion-engineered nanowaveguides. The technique developed here broadens the interacting harmonics by forming stable bifurcations of the pulse envelopes due to an interplay between phase-mismatch and pump depletion. We first present an intuitive heuristic model for spectral broadening by second-harmonic generation of femtosecond pulses and show that this model agrees well with experiments. Then, having established strong agreement between theory and experiment, we develop scaling laws that determine the energy required to generate an octave of bandwidth as a function of input pulse duration, device length, and input pulse chirp. These scaling laws suggest that future realization based on this approach could enable supercontinuum generation with orders of magnitude less energy than current state-of-the-art devices.http://dx.doi.org/10.1063/5.0158926 |
| spellingShingle | Marc Jankowski Carsten Langrock Boris Desiatov Marko Lončar M. M. Fejer Supercontinuum generation by saturated second-order nonlinear interactions APL Photonics |
| title | Supercontinuum generation by saturated second-order nonlinear interactions |
| title_full | Supercontinuum generation by saturated second-order nonlinear interactions |
| title_fullStr | Supercontinuum generation by saturated second-order nonlinear interactions |
| title_full_unstemmed | Supercontinuum generation by saturated second-order nonlinear interactions |
| title_short | Supercontinuum generation by saturated second-order nonlinear interactions |
| title_sort | supercontinuum generation by saturated second order nonlinear interactions |
| url | http://dx.doi.org/10.1063/5.0158926 |
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