Comparative analysis of WO3 nanospheres and TiO2 nanotubes as saturable absorber for applications in passive mode-locked laser

P. Zaca-Morán; F. Chavéz; G. Beltrán-Pérez; J. G. Ortega; C. Felipe; O. Goiz; R. Grajales-Coutiño; A. González-García

doi:10.1117/12.868252

14 October 2010 Comparative analysis of WO₃ nanospheres and TiO₂ nanotubes as saturable absorber for applications in passive mode-locked laser

P. Zaca-Morán, F. Chavéz, G. Beltrán-Pérez, J. G. Ortega, C. Felipe, O. Goiz, R. Grajales-Coutiño, A. González-García

Author Affiliations +

Proceedings Volume 7839, 2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2); 78391T (2010) https://doi.org/10.1117/12.868252
Event: Workshop on Specialty Optical Fibers and Their Applications (WSOF-10), 2010, Oaxaca, Mexico

Abstract

Experimental studies of titania nanotubes (TiO₂) and tungsten oxide nanospheres (WO3) as devices of saturable absorption for a fiber laser in ring configuration to optical short-pulse generation are presented. A deposition technique, based on optical pressure radiation generated from a coherent source at 1550 nm is used to deposit the nanostructured materials. Since this nanomaterials can be deposited directly on the optical fiber, this proposal results very interesting for applications of saturable absorbers. Experimental results, by using nanotubes TiO₂ and nanospheres deposited on the fiber as a saturable absorption device, show that the TiO₂ nanotubes exhibit better saturable absorption properties than WO₃ nanospheres, generating pulses with a wavelength of 1550 nm, frequency of 10 MHz, temporally width of 4.5 ps and an output power of 1 mW.

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P. Zaca-Morán, F. Chavéz, G. Beltrán-Pérez, J. G. Ortega, C. Felipe, O. Goiz, R. Grajales-Coutiño, and A. González-García "Comparative analysis of WO₃ nanospheres and TiO₂ nanotubes as saturable absorber for applications in passive mode-locked laser", Proc. SPIE 7839, 2nd Workshop on Specialty Optical Fibers and Their Applications (WSOF-2), 78391T (14 October 2010); https://doi.org/10.1117/12.868252

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