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http://hdl.handle.net/2074/2506
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| Title: | Crystal orientation dependence of the SNR for signal beam amplification in photorefractive BaTiO3 |
| Authors: | Joseph, J
Singh, K
Pillai, P K C |
| Keywords: | Photorefractive crystals
Two-beam coupling
Signal beam amplification
Signal to noise ratio |
| Issue Date: | 1991 |
| Citation: | Optics & Laser Technology,23(4), 237-240p. |
| Abstract: | In signal beam amplification by two-beam coupling in BaTiO3 photorefractive crystals, beam fanning in the direction of the amplified signal reduces the signal-to-noise ratio (SNR). The dependence of the SNR and the signal beam gain on the crystal orientation are analysed using a HeNe laser. It is found that orientating the crystal for maximum gain gives poor signal-to-noise ratio. A compromise has to be made between the SNR and high gain for optimum signal amplification. |
| URI: | http://eprint.iitd.ac.in/dspace/handle/2074/2506 |
| Appears in Collections: | Physics
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| josephcry91.pdf | | 128Kb | Adobe PDF | View/Open |
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