Applied Physics B

, Volume 99, Issue 3, pp 519–524

A broadband reflector using a multilayered grating structure with multi-subpart profile

Article

DOI: 10.1007/s00340-010-3917-x

Cite this article as:
Wu, H., Hou, J., Mo, W. et al. Appl. Phys. B (2010) 99: 519. doi:10.1007/s00340-010-3917-x

Abstract

In this paper, a broadband reflector exhibiting a flattened bandstop spectral response is proposed by using a multilayered grating structure possessing multi-subpart profile. It is shown that with the properly configured profile and a strongly modulated grating layer, in transverse electric (TE) polarized wave the presented reflector experimentally demonstrated a 240 nm-wide reflection spectrum from 1.56 to 1.8 μm, very high reflectivity (>97%), and a low sensitivity to incident angle at the range of −13.8°<θ<+14°. Effects of deviation from the design parameters on the performance of the reflector are also illustrated, and a reasonably good tolerance of fabrication error is exhibited in the proposed device.

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.State Key Laboratory of Advanced Optical Communication Systems and NetworksPeking UniversityBeijingChina
  2. 2.School of Electrical and Computer EngineeringGeorgia Institute of TechnologyAtlantaUSA
  3. 3.Wuhan National Laboratory for OptoelectronicsHuazhong University of Science & TechnologyWuhanChina