Tb2Ti2O7　(TTO)　single　crystal　with　dimensions　of　20　x　20　x　16　mm(3)　was　grown　by　the　Czochralski　method.　Rietveld　structure　refinement　of　X-ray　diffraction　(XRD)　data　confirms　that　the　compound　crystallizes　in　the　cubic　system　with　pyrochlore　structure.　Transmission　spectra,　Magnetic　circular　dichroism　(MCD)　spectra,　Faraday　and　inverse　Faraday　characteristics　of　TTO　crystal　have　been　measured　and　analyzed　in　detail.　The　results　demonstrate　that　TTO　crystal　has　high　transmittance　at　700-1400　nm　waveband　and　a　larger　Verdat　constant　than　that　of　TGG　reported.　Magnetic　circular　dichroism　(MCD)　spectra　showed　that　the　4f　-＞　4f　transitions　of　Tb3+　have　significant　contributions　to　the　magneto-optical　activity　(MOA).　In　the　time-resolved　pump-probe　spectroscopy,　the　rotation　signals　of　the　probe　beam　based　on　the　inverse　Faraday　effect　in　magneto-optical　crystal　were　observed　at　zero　time　delay,　the　full　width　at　half　maximum　of　the　rotation　and　ellipticity　signals　can　be　as　fast　as　similar　to　500　fs,　which　indicates　that　TTO　crystal　can　be　a　promising　material　for　ultrafast　all-optical　magnetic　switching.　(C)　2016　Optical　Society　of　America