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Towards ultrafast sub-nanojoule solitonic nonlinear directional coupler based on soft glass dual-core photonics crystal fibers

  • We demonstrate narrow band spectral intensity switching in dual-core photonic crystal fibers made of highly nonlinear glass under femtosecond excitation. The fibers expressed dual-core asymmetry, thus the slow and fast fiber cores were unambiguously distinguished according to their dispersion profiles. The asymmetry effect on the dual-core Propagation in anomalous dispersion region was studied both experimentally and numerically. The experimental study was carried out using femtosecond laser amplifier system providing tunable pulses in range of 1500 nm - 1800 nm. The obtained results unveiled, that it is possible to improve nonlinearly the coupling between the two waveguides by excitation of the fast fiber core. The results were obtained in regime of high-order soliton propagation and were verified numerically by the coupled generalized nonlinear Schrödinger equations model. The spectral analysis of the radiation transferred to the non-excited core revealed the role of effects such asWe demonstrate narrow band spectral intensity switching in dual-core photonic crystal fibers made of highly nonlinear glass under femtosecond excitation. The fibers expressed dual-core asymmetry, thus the slow and fast fiber cores were unambiguously distinguished according to their dispersion profiles. The asymmetry effect on the dual-core Propagation in anomalous dispersion region was studied both experimentally and numerically. The experimental study was carried out using femtosecond laser amplifier system providing tunable pulses in range of 1500 nm - 1800 nm. The obtained results unveiled, that it is possible to improve nonlinearly the coupling between the two waveguides by excitation of the fast fiber core. The results were obtained in regime of high-order soliton propagation and were verified numerically by the coupled generalized nonlinear Schrödinger equations model. The spectral analysis of the radiation transferred to the non-excited core revealed the role of effects such as third order dispersion, soliton compression and spectral dependence of the coupling efficiency. The simulation results provide reasonable agreement with the experimentally observed spectral evolutions in the both fiber cores. Under 1800 nm excitation, narrow band spectral intensity switching was registered with contrast of 23 dB at 10 mm fiber length by changing the excitation pulse energy in sub-nanojoule range.zeige mehrzeige weniger

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Metadaten
Autor*innen:L. Curilla, I. Astrauskas, A. Pugzlys, Pavol Stajanca, F. Uherek, D. Pysz, A. Baltuska, I. Bugar
Persönliche Herausgeber*innen:K. Kalli, A. Mendez, C.-A. Bunge
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):Proc. SPIE / MICRO-STRUCTURED AND SPECIALTY OPTICAL FIBRES V
Jahr der Erstveröffentlichung:2018
Organisationseinheit der BAM:8 Zerstörungsfreie Prüfung
8 Zerstörungsfreie Prüfung / 8.6 Faseroptische Sensorik
Herausgeber (Institution):SPIE
Jahrgang/Band:10681
Erste Seite:106810I-1
Letzte Seite:106810I-6
DDC-Klassifikation:Technik, Medizin, angewandte Wissenschaften / Ingenieurwissenschaften / Ingenieurwissenschaften und zugeordnete Tätigkeiten
Freie Schlagwörter:All-optical switching; Asymmetric coupler; Coupled generalized nonlinear Schrödinger equation; Dual-core photonic crystal fiber; Soft glass; Ultrafast soliton fission
Themenfelder/Aktivitätsfelder der BAM:Material
Veranstaltung:SPIE Photonics Europe 2018
Veranstaltungsort:Strasbourg, France
Beginndatum der Veranstaltung:22.04.2018
Enddatum der Veranstaltung:26.04.2018
DOI:10.1117/12.2315256
ISSN:0277-786X
ISSN:1996-756X
ISBN:978-1-5106-1889-3
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:16.05.2018
Referierte Publikation:Ja
Datum der Eintragung als referierte Publikation:30.08.2018
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