OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 48, Iss. 35 — Dec. 10, 2009
  • pp: 6760–6764

Flat-top steep-edge photodetector with cascaded grating structure

Xu Zhang, Yongqing Huang, Xiaomin Ren, Hui Huang, and Qi Wang  »View Author Affiliations

Applied Optics, Vol. 48, Issue 35, pp. 6760-6764 (2009)

View Full Text Article

Enhanced HTML    Acrobat PDF (731 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A new type of photodetector with cascaded waveguide grating filters as a bottom reflection mirror is proposed. A greatly improved spectral response is shown to follow by the integration of a waveguide grating into classical thin-film homogeneous layers. Calculation results for a single grating, a cascaded-double grating, and a cascaded-triple grating structure are demonstrated. An increasing rectangular spectral response is obtained by cascading two or three grating filters. Compared with a traditional photodetector with distributed Bragg reflectors, this new type of photodetector with the same materials requires significantly fewer layers while maintaining narrow flattop response, high peak efficiency, and low sideband reflectance.

© 2009 Optical Society of America

OCIS Codes
(050.2770) Diffraction and gratings : Gratings
(230.4170) Optical devices : Multilayers
(230.5160) Optical devices : Photodetectors

ToC Category:
Optical Devices

Original Manuscript: July 6, 2009
Revised Manuscript: October 19, 2009
Manuscript Accepted: October 30, 2009
Published: December 3, 2009

Xu Zhang, Yongqing Huang, Xiaomin Ren, Hui Huang, and Qi Wang, "Flat-top steep-edge photodetector with cascaded grating structure," Appl. Opt. 48, 6760-6764 (2009)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. M. S. Unlu and S. Strite, “Resonant cavity enhanced photonic devices,” J. Appl. Phys. 78, 607-639 (1995). [CrossRef]
  2. C.-H. Chen, K. Tetz, and Y. Fainman, “Resonant-cavity-enhanced p-i-n photodiode with a broad quantum-efficiency spectrum by use of an anomalous-dispersion mirror,” Appl. Opt. 44, 6131-6140 (2005). [CrossRef] [PubMed]
  3. M. Gokkavas, G. Ulu, O. Dosunmu, R. P. Mirlin, and M. S. Unlu, “Resonant cavity enhanced photodiodes with a broadened spectral peak,” in 14th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2001), Vol. 2, pp. 768-769.
  4. H. Cheng, H. Hui, W. Wenjuan, and H. Yongqing, “Design of a tunable InP-based long wavelength photodetector with flat-top and steep-edge response,” Semiconductor Opt. 26, 100-104 (2005) (in Chinese).
  5. M. G. Moharam, D. A. Pommet, and E. B. Grann, “Stable implementation of the rigorous coupled-wave analysis of surface-relief gratings: enhanced transmittance matrix approach,” J. Opt. Soc. Am. A 12, 1077-1086 (1995). [CrossRef]
  6. M. G. Moharam, E. B. Grann, D. A. Pommet, and T. K. Gaylord, “Formulation for stable and efficient implementation of the rigorous coupled wave analysis of binary gratings,” J. Opt. Soc. Am. A 12, 1068-1076 (1995). [CrossRef]
  7. S. S. Wang and R. Magnusson, “Theory and applications of guided-mode resonance filters,” Appl. Opt. 32, 2606-2613(1993). [CrossRef] [PubMed]
  8. S. S. Wang and R. Magnusson, “Multilayer waveguide-grating filters,” Appl. Opt. 34, 2414-2420 (1995). [CrossRef] [PubMed]
  9. D. K. Jacob, “Dielectric resonant grating structure for narrow-band filtering application,” Ph.D. thesis (University of Central Florida, 2001).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited