%0 Journal Article %1 WOS:000236897200003 %A Sobrinho, CS %A Filho, AFGF %A Sales, JC %A Neto, AFM %A Almeida, EF De %A Sombra, ASB %C 530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA %D 2006 %I TAYLOR & FRANCIS INC %J FIBER AND INTEGRATED OPTICS %K crosstalk} filter; optical {acousto-optic %N 3 %P 195-211 %R 10.1080/01468030600569834 %T Acousto-optic tunable filter (AOTF) revisited: Ultrashort optical pulses crosstalk studies on the lossy filter %V 25 %X We examine again the crosstalk level ( Xtalk) and extinction ratio (Xratio) of an acousto-optic tunable filter (AOTF) operating with ultrashort light pulses ( 2 ps), now considering the loss effect. The compression factor was studied for the switched pulse with lossy AOTF (alpha(dB) = 4 dB/mm) considering five nonlinearity profiles. One can observe that there is always an optimum value for delta ( final value of the nonlinearity) that one can obtain a switched pulse with the same time duration of the input pulse ( C = 1). The compression factor for the switched pulse along the filter length shows that for the constant profile, the compression factor is around 1 all over the device. The study of the crosstalk level (Xtalk) of this device, considering the optimum values of delta obtained from the compression studies, as a function of the pump power (P-0) was done. The acousto-optic tunable filter (AOTF) has attracted great attention in recent years, in part because it appears to be a suitable basis for multi-wavelength optical cross-connects. It is probably the only known tunable filter that is capable of selecting several wavelengths simultaneously. This capability can be used to construct a multi-wavelength router.

@article{WOS:000236897200003, abstract = {We examine again the crosstalk level ( Xtalk) and extinction ratio (Xratio) of an acousto-optic tunable filter (AOTF) operating with ultrashort light pulses ( 2 ps), now considering the loss effect. The compression factor was studied for the switched pulse with lossy AOTF (alpha(dB) = 4 dB/mm) considering five nonlinearity profiles. One can observe that there is always an optimum value for delta ( final value of the nonlinearity) that one can obtain a switched pulse with the same time duration of the input pulse ( C = 1). The compression factor for the switched pulse along the filter length shows that for the constant profile, the compression factor is around 1 all over the device. The study of the crosstalk level (Xtalk) of this device, considering the optimum values of delta obtained from the compression studies, as a function of the pump power (P-0) was done. The acousto-optic tunable filter (AOTF) has attracted great attention in recent years, in part because it appears to be a suitable basis for multi-wavelength optical cross-connects. It is probably the only known tunable filter that is capable of selecting several wavelengths simultaneously. This capability can be used to construct a multi-wavelength router.}, added-at = {2022-05-23T20:00:14.000+0200}, address = {530 WALNUT STREET, STE 850, PHILADELPHIA, PA 19106 USA}, author = {Sobrinho, CS and Filho, AFGF and Sales, JC and Neto, AFM and Almeida, EF De and Sombra, ASB}, biburl = {https://www.bibsonomy.org/bibtex/21a7da55e2b4ee7c17616bc4a3855e383/ppgfis_ufc_br}, doi = {10.1080/01468030600569834}, interhash = {3c31dd5a0645bf5bb84f55139ede1e7b}, intrahash = {1a7da55e2b4ee7c17616bc4a3855e383}, issn = {0146-8030}, journal = {FIBER AND INTEGRATED OPTICS}, keywords = {crosstalk} filter; optical {acousto-optic}, number = 3, pages = {195-211}, publisher = {TAYLOR & FRANCIS INC}, pubstate = {published}, timestamp = {2022-05-23T20:00:14.000+0200}, title = {Acousto-optic tunable filter (AOTF) revisited: Ultrashort optical pulses crosstalk studies on the lossy filter}, tppubtype = {article}, volume = 25, year = 2006 }