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R eflective three port grating with a connecting layer under the second Bragg incidence

WENHUA ZHU1, BO WANG1,* , HONGTAO LI1, KUNHUA WEN1, ZIMING MENG1, QU WANG1, XIANGJUN XING1, LI CHEN1, LIANG LEI1, JINYUN ZHOU1

Affiliation

  1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China

Abstract

A novel design of reflective three port polarization dependent grating with a metal mirror and a connection layer under the second Bragg incidence is reported in this paper. C ompared with a desc ription of fused silica grating at the second Bragg angle, the grating diffraction efficiency for TE polarization is improved. Besides, the wide spectral bandwidth of 109 nm for TM polarization is obtained. Hence, the reflective three port grating has the advantages of the improvement of diffraction efficiencies for TE polarization and broad spectral bandwidth for TM polarization..

Keywords

Three port splitting, Reflective grating, Polarization depen dence Wide spectral bandwidth.

Citation

WENHUA ZHU, BO WANG, HONGTAO LI, KUNHUA WEN, ZIMING MENG, QU WANG, XIANGJUN XING, LI CHEN, LIANG LEI, JINYUN ZHOU, R eflective three port grating with a connecting layer under the second Bragg incidence, Optoelectronics and Advanced Materials - Rapid Communications, 12, 11-12, November-December 2018, pp.629-633 (2018).

Submitted at: Jan. 16, 2019

Accepted at: Nov. 29, 2018