Near-stoichiometric LiNbO3:Tb, Fe crystals have three different types of energy levels suitable for two-color nonvolatile hologram recording. We investigated two-color multiplexed recording in the crystals. Hologram recording by use of 850nm recording beams and a gating light of visible wavelengths starting from the UV-pre-exposed colored state was suitable for multiplexing. By taking into account the dynamic behavior of sensitivity and erasure time constant owing to the gradual decrease of UV-induced absorption during writing, we could record 100 multiplexed hologram pages with nearly equal strength. An M/# of ~0.33 was obtained and the multiplexed holograms showed very stable nonvolatile readout characteristics.
|Title of host publication||Photorefractive Effects, Materials, and Devices, PR 2001|
|Publisher||Optica Publishing Group (formerly OSA)|
|Number of pages||9|
|Publication status||Published - 2001|
|Event||Photorefractive Effects, Materials, and Devices, PR 2001 - Delavan, United States|
Duration: 2001 Jul 8 → …
|Name||Optics InfoBase Conference Papers|
|Conference||Photorefractive Effects, Materials, and Devices, PR 2001|
|Period||01/7/8 → …|
Bibliographical notePublisher Copyright:
© 2001 Optical Society of America.
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Mechanics of Materials