Development of novel super-continuum fiber lasers and wavelength tunable soliton pulses

Norihiko Nishizawa

doi:10.1117/12.685890

2 October 2006 Development of novel super-continuum fiber lasers and wavelength tunable soliton pulses

Norihiko Nishizawa

Proceedings Volume 6389, Active and Passive Optical Components for Communications VI; 63890U (2006) https://doi.org/10.1117/12.685890
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

Abstract

Recently, the technologies of optical fibers have been advanced and the special fibers, such as highly nonlinear fibers and photonic crystal fibers have been demonstrated. As the light sources, passively mode-locked ultrashort pulse fiber lasers have been commercialized and attracted a lot of attentions in several fields. The group of author has been working on the development and applications of high performance ultrashort pulse fiber lasers. In this paper, the recent progress of widely wavelength tunable ultrashort pulse and ultra wideband super continuum generation by use of ultrashort pulse fiber laser are described. In 1999, the widely wavelength tunable ultrashort soliton pulse generation has been demonstrated in the wavelength region of 1.55 - 2.0 um. In this light source, it was difficult to generate the ideal ultrashort pulses in the wavelength region around 1.55 um. Recently, we have demonstrated 1.0 - 1.7 um widely wavelength tunable ultrashort pulse generation system by use of Yb doped fiber laser and photonic crystal fibers. Using this source, we can cover the whole wavelength band used in optical communications. In 2001, 1.0 - 2.0 um ultra wideband super continuum generation has been reported using ultrashort pulse fiber laser and highly nonlinear fibers. In terms of the applications, the large noise and the fine structures become serious problems. We have also analyzed the characteristics of super continuum generation and clarified the origin of noise and fine structures. Recently, we have successfully generated the ultra wideband, low noise, ultraflat, and highly coherent super continuum without any fine structures for the first time. Another novel super continuum generations are also discussed.

Citation Download Citation

Norihiko Nishizawa "Development of novel super-continuum fiber lasers and wavelength tunable soliton pulses", Proc. SPIE 6389, Active and Passive Optical Components for Communications VI, 63890U (2 October 2006); https://doi.org/10.1117/12.685890

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KEYWORDS

Solitons

Fiber lasers

Ultrafast phenomena

Dispersion

Light sources

Ytterbium

Optical fibers

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