期刊
OPTICS COMMUNICATIONS
卷 282, 期 15, 页码 3168-3171出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2009.04.052
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资金
- Air Force Office of Scientific Research [F49620-03-1-0362]
- National Science Foundation [ECS-0239355]
A combination of negative refraction and diffraction compensation in a superprism-based photonic crystal structure is used to demonstrate a compact on-chip photonic crystal spectrometer. This structure provides strong dispersion and signal isolation, which are essential for forming an efficient and compact spectrometer. Performance of these spectrometers as spectral pattern detectors is discussed. The experimental results show that a PC structure with 80 mu m x 220 mu m dimension can locate a single spectral feature with better than 10 pm accuracy over a bandwidth of 50 nm around 1550 nm center wavelength at an output signal-to-noise ratio of 13 dB. (C) 2009 Elsevier B.V. All rights reserved.
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