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Proceedings Paper

Photonic crystal fiber-based broadly tunable femtosecond laser sources and applications
Author(s): Yujun Deng; Fei Lu; Wayne H. Knox
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Paper Abstract

Photonic crystal fiber (PCF) is considered as a special type of 2-dimensional photonic crystal structure. As the result of its large design flexibility, there are numerous different types of PCFs exhibiting vastly different optical properties. Among them, the small-core PCFs have extremely high effective nonlinearity, which makes them an ideal nonlinear medium for new frequency generation. However significant nonlinear process in fiber only occurs when the phase matching condition is satisfied. Therefore, the dispersion properties of PCFs are also critical. In this paperr, three different approaches are taken to extend the tunability of an Yb-fiber-based femtosecond source. All of the schemes are enabled by the unique dispersion and nonlinear properties of photonic-crystal-fibers (PCFs). In the first approach, by adopting the newly available PCF into an optical parametric oscillator (FOPO) and combining it with our newly-developed mode-locked Yb-fiber laser [1], we extend the tunability of this fiber-based system to over 200-nm around 1 μm [2]. The second scheme uses Raman soliton self-frequency shifting effect in PCFs. Femtosecond soliton pulses tunable from 1100 nm to 1300 nm are generated. In the third approach, by taking advantage of broadly variable phase matching point for the Cherenkov radiation in PCFs, broadly tunable femtosecond visible pulses from 450 nm to 630 nm are achieved [3].

Paper Details

Date Published: 30 August 2006
PDF: 12 pages
Proc. SPIE 6322, Tuning the Optic Response of Photonic Bandgap Structures III, 63220H (30 August 2006); doi: 10.1117/12.681296
Show Author Affiliations
Yujun Deng, The Institute of Optics, Univ. of Rochester (United States)
Fei Lu, The Institute of Optics, Univ. of Rochester (United States)
Wayne H. Knox, The Institute of Optics, Univ. of Rochester (United States)


Published in SPIE Proceedings Vol. 6322:
Tuning the Optic Response of Photonic Bandgap Structures III
Paul V. Braun; Sharon M. Weiss, Editor(s)

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