IEICE Electronics Express | |
Monolithically integrated grating and deflector structure for wavelength filtering | |
Hideaki Okayama1  | |
[1] R&D Group, Oki Electric Industry Co., Ltd. / RISE, Waseda University | |
关键词: deflector; grating; tunable wavelength filter; | |
DOI : 10.1587/elex.2.121 | |
学科分类:电子、光学、磁材料 | |
来源: Denshi Jouhou Tsuushin Gakkai | |
【 摘 要 】
References(6)Cited-By(1)A simple integrated deflector and grating structure is proposed for a wavelength filtering. The deflector is composed of a channel waveguide and a slab waveguide with a tapered gap between them to generate a Gaussian light beam in the slab waveguide. The echelle type grating is formed at the end of the slab waveguide. The distance between the grating and the deflector is 100-200µm. The device is designed using diffraction theory. The filter response is verified using bi-directional BPM. Tuning range of 25nm for 5.4 × 10-3 refractive index change and filter passband width of 15nm were attained by a 350µm long device at 1500nm wavelength.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201911300940172ZK.pdf | 302KB | download |