Abstract
Permanent refractive-index gratings in wave- guide devices are of considerable interest for optical communication systems that make use of the high spectral selectivity of holographic filters, e.g., dense wavelength division multiplexing (DWDM) or narrow-bandwidth mirrors for integrated waveguide lasers in LiNbO3. Other possible applications include grating couplers and optical sensors. In this contribution we investigate such holographic wavelength filters in Fe- and Cu-doped LiNbO3, channel waveguides.1 LiNbO3:Fe and LiNbO3: Cu crystals are sensitive to light in the visible green or blue wavelength region, but show only little effects in the red or near infrared spectral region. Especially in the 1.3 μm and 1.55 μm wavelength hand of optical communications no photorefractive effects have been observed for common continuous wave intensities.
© 2002 Optical Society of America
PDF ArticleMore Like This
D. Runde, S. Breuer, and D. Kip
772 Photorefractive Effects, Materials, and Devices (PR) 2005
D. Runde and D. Kip
615 Photorefractive Effects, Materials, and Devices (PR) 2003
Liren Liu, Dean Liu, Liyong Ren, Changhe Zhou, and Ye Liu
DTuA4 Diffractive Optics and Micro-Optics (DOMO) 2002