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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 22 — Oct. 29, 2007
  • pp: 14765–14771

A highly compact third-order silicon microring add-drop filter with a very large free spectral range, a flat passband and a low delay dispersion

Shijun Xiao, Maroof H. Khan, Hao Shen, and Minghao Qi  »View Author Affiliations


Optics Express, Vol. 15, Issue 22, pp. 14765-14771 (2007)
http://dx.doi.org/10.1364/OE.15.014765


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Abstract

– We demonstrate highly compact third-order silicon microring add-drop filters. The microring resonator has a small radius of 2.5 μm and a very large free spectral range of 32 nm at 1.55 μm. Experimental results show a low add-drop crosstalk of around -20 dB. Box-like channel dropping response is demonstrated, and it has a passband of ~ 1 nm (125 GHz), fast rolling-off (slope ~ 0.2 dB/GHz), high out-of-band signal rejection of around 40 dB and a low drop loss. Simulation agrees well with experiments in power transmission, and the group delay is also simulated and the variation is less than 1 ps within the passband. The propagation loss in microring resonators is optimized.

© 2007 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(220.4000) Optical design and fabrication : Microstructure fabrication
(230.5750) Optical devices : Resonators
(250.5300) Optoelectronics : Photonic integrated circuits

ToC Category:
Integrated Optics

History
Original Manuscript: August 9, 2007
Revised Manuscript: October 5, 2007
Manuscript Accepted: October 9, 2007
Published: October 24, 2007

Citation
Shijun Xiao, Maroof H. Khan, Hao Shen, and Minghao Qi, "A highly compact third-order silicon microring add-drop filter with a very large free spectral range, a flat passband and a low delay dispersion," Opt. Express 15, 14765-14771 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-22-14765


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References

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