Second Order Optical Nonlinearities in Thermally Poled Phosphate Glasses
Second order optical nonlinearities were induced in commercial phosphate glasses (Schott, IOG-1) by the thermal poling technique. The induced {chi}{sup (2)} was measured via second harmonic generation using a fundamental beam from a 1064 nm mode-locked Nd:YAG laser. The nonlinear regions were characterized using the Maker-Fringe technique, in which the second harmonic signals were observed as a function of incident angle of the fundamental beam. The results show that the {chi}{sup (2)} profile has contributions from two distinct regions: a near-anodic surface region and a bulk. We have modeled the induced profile to fit our experimental results. The dependence of the induced nonlinearity on applied poling fields, temperatures and poling time is discussed.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15005982
- Report Number(s):
- UCRL-JC-142523; TRN: US0400197
- Resource Relation:
- Journal Volume: 4640; Conference: Photonics West 2002, San Jose, CA (US), 01/19/2002--01/25/2002; Other Information: PBD: 14 Dec 2001
- Country of Publication:
- United States
- Language:
- English
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