Abstract
In this invited paper we introduce several types of waveguide spectrometers. We present a high-resolution 50-channel AWG spectrometer, including its use to interrogate a fibre Bragg grating sensor with a high wavelength accuracy of 1 pm. A 40-channel AWG operating in a broad wavelength range of 1250–1550 nm is introduced. We present a new 15-channel CWDM demultiplexer using a single curved Si-wire waveguide with an etched sidewall grating and chip size of only 90 µm × 140 µm. Finally, the first planar waveguide Fourier-transform spectrometer is presented, with a greatly increased light gathering capability and a static design.
© 2009 Optical Society of America
PDF ArticleMore Like This
Hiroshi Takahashi
ThD1 Asia Communications and Photonics Conference and Exhibition (ACP) 2009
Yoshinori Hibino
IMD3 Integrated Photonics and Nanophotonics Research and Applications (IPR) 2009
Jian-Jun He
IFB3 Integrated Photonics Research (IPR) 2000