Chirped fiber Bragg gratings written with ultrashort pulses and a tunable phase mask

We report a fabrication technique for chirped fiber Bragg gratings (CFBGs) using a flexible setup based on a poly(methyl-methacrylate) phase mask. The period of the phase mask can be thermally tuned during the inscription process, allowing the grating period of uniform fiber Bragg gratings to be shi...

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Veröffentlicht in:	Optics letters 2009-06, Vol.34 (12), p.1888-1890
Hauptverfasser:	VOIGTLÄNDER, Christian, THOMAS, Jens, WIKSZAK, Elodie, DANNBERG, Peter, NOLTE, Stefan, TÜNNERMANN, Andreas
Format:	Artikel
Sprache:	eng
Schlagworte:	Cross-disciplinary physics: materials science rheology Exact sciences and technology Fiber optics Fundamental areas of phenomenology (including applications) Gratings Materials science Nonlinear optics Optical elements, devices, and systems Optics Other fiber-optical devices Physics Radiation treatments Treatment of materials and its effects on microstructure and properties Ultrafast processes optical pulse generation and pulse compression
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Beschreibung
Zusammenfassung:	We report a fabrication technique for chirped fiber Bragg gratings (CFBGs) using a flexible setup based on a poly(methyl-methacrylate) phase mask. The period of the phase mask can be thermally tuned during the inscription process, allowing the grating period of uniform fiber Bragg gratings to be shifted about 7 nm by a temperature change of 74 K. In addition, CFBGs with bandwidths up to 2 nm are demonstrated in non-photosensitive fibers by IR femtosecond inscription.
ISSN:	0146-9592 1539-4794
DOI:	10.1364/OL.34.001888