Dual-Wavelength Pumped Highly Birefringent Microstructured Silica Fiber for Widely Tunable Soliton Self-Frequency Shift

Olga Szewczyk, Piotr Pala, Karol Tarnowski, Jacek Olszewski, Francisco Senna Vieira, Chuang Lu, Aleksandra Foltynowicz, Pawel Mergo, Jaroslaw Sotor, Grzegorz Sobon, Tadeusz Martynkien

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Abstract

We report the design of a microstructured silica-based fiber for widely tunable soliton self-frequency shift, suitable for pumping with two most common fiber laser wavelengths: 1.04 and 1.55 μm. Depending on the pump source, the output spectrum can be continuously tuned up to 1.67 (pump at 1.04 μm) or 1.95 μm (pump at 1.55 μm) in the same 1.5 m-long fiber sample, with pump-To-soliton conversion efficiency higher than 20%. The fiber is highly birefringent, which results in an excellent polarization extinction ratio of the soliton, reaching 26 dB. The shifted solitons have a high degree of coherence confirmed by pulse-To-pulse interference measurement. The available soliton tuning range covers the wavelengths inaccessible for fiber lasers, e.g., 1.3 μm and 1.7, highly important for multi-photon microscopy and imaging. Our work shows that it is possible to design and fabricate one universal optical fiber that supports soliton shift when pumped at two different wavelengths separated by over 500 nm.

Original languageEnglish
Article number9350157
Pages (from-to)3260-3268
JournalJournal of Lightwave Technology
Volume39
Issue number10
DOIs
Publication statusPublished - 15 May 2021
MoE publication typeA1 Journal article-refereed

Keywords

  • Fiber nonlinear optics
  • optical solitons
  • optical wavelength conversion

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