A study of the photorefractive effect in linbo3: Ti waveguides by using pulsed illumination at 810 nm

M. Lowry, D. Jander, B. Kidd, P. Kwiat, R. Peterson, G. McWright, F. Roeske

Research output: Contribution to journalArticlepeer-review


There is increasing interest in LiNbO3:Ti integrated optical devices as transducers in fast, analog, data-acquisition systems. A possible limitation to such use, however, results from the photorefractive effect in LiNbO3:Ti. From existing data, we know of difficulties due to the photorefractive effect with continuous-wave (CW) illumination. Here we present pulse measurements at 810 nm of the optical-transmission distortion due to the photorefractive effect in LiNbO3:Ti waveguides. We subjected the optical devices to pulsed input light generated by a mechanically shuttered dye-laser system. We then measured and compared the transmitted light to an input monitor and obtained the transmission of the LiNbO3:Ti devices as a function of time. We varied the peak power from 50 pW to 150 mW, and the pulse length from 10 ms to 1 s. We have obtained a 21-mW output with a 10-ms duration from a LiNbO3:Ti waveguide with no prom2t transmission degradation. Further, we have found preliminary evidence suggesting an activation time of 100 to 150 min. for the onset of photorefractive transmission degradation.

Original languageEnglish (US)
Pages (from-to)105-109
Number of pages5
JournalProceedings of SPIE - The International Society for Optical Engineering
StatePublished - Mar 11 1987
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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