Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

High-performance and compact binary blazed grating coupler based on an asymmetric subgrating structure and vertical coupling

Not Accessible

Your library or personal account may give you access

Abstract

A high-performance and compact fiber-to-waveguide binary blazed subwavelength grating coupler was designed based on silicon-on-insulator. By the appropriate choice of waveguide/grating parameters, including thicknesses, periods, height, and fill factor, to optimize the mode matching, a relatively high coupling efficiency was obtained for the fiber and waveguide interface. Moreover, perfectly vertical fiber coupling is achieved by using an asymmetric subgrating structure in which a period consists of two subgratings with identical etching height and different widths. Coupling efficiency as high as 69% at a wavelength of 1.52μm and 65% at a wavelength of 1.55μm is calculated. Simultaneously, the 1dB wavelength bandwidth is around 80nm. The coupling efficiency can reach up to 80% or so if Bragg reflector layers are added. Finally, the device layout is simple, feasible, one-step etched, and compatible with standard complementary metal-oxide semiconductor technology processing.

© 2011 Optical Society of America

Full Article  |  PDF Article
More Like This
Compact double-layer subwavelength binary blazed grating 1×4 splitter based on silicon-on-insulator

Junbo Yang, Zhiping Zhou, XinJun Wang, Danhua Wu, Huaxiang Yi, JianKun Yang, and Wei Zhou
Opt. Lett. 36(6) 837-839 (2011)

Polarization beam splitter using a binary blazed grating coupler

Junbo Feng and Zhiping Zhou
Opt. Lett. 32(12) 1662-1664 (2007)

Design and fabrication of a high-performance binary blazed grating coupler for perfectly perpendicular coupling

Jinbin Xu, Sipan Yang, Liying Wu, Liping Xu, Yaqian Li, Rujun Liao, Minni Qu, Xueling Quan, and Xiulan Cheng
Opt. Express 29(26) 42999-43010 (2021)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Tables (1)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (9)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved