Owing　to　the　high　Bragg　selectivity　and　capacity　of　multiple　recording,　volume　holography　has　been　widely　investigated　for　devices　such　as　wavelength　filters　in　wavelength-division　multiplexing　fiber　communication　systems　in　recent　years.　Transmission-Writing　and　Orthogonal-Readout　scheme　(TWOR)　has　been　proposed　for　making　wavelength　filters　in　holographic　media.　In　this　paper,　experiments　on　wavelength　selectivity　of　volume　gratings　with　TWOR　scheme　are　successfully　conducted　for　the　first　time　to　our　knowledge.　Readout　by　wavelength-tuning　showed　that　a　3-dB　bandwidth　of　0.5nm　was　achieved.　The　experimental　results　agreed　well　with　the　expectation　of　2-D　coupled-wave　theory,　and　verified　the　feasibility　of　TWOR　scheme.