Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording
The application of the photonic crystal (PC) waveguide (WG) as the light delivery system in the heat-assisted magnetic recording (HAMR) system is demonstrated. The structure consists of a 90° bending PC waveguide and a ridge dielectric waveguide taper coupler. Three-dimensional (3D) models of struct...
Saved in:
| Main Authors: | , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/8097841 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832549197877870592 |
|---|---|
| author | Orrathai Watcharakitchakorn Rardchawadee Silapunt |
| author_facet | Orrathai Watcharakitchakorn Rardchawadee Silapunt |
| author_sort | Orrathai Watcharakitchakorn |
| collection | DOAJ |
| description | The application of the photonic crystal (PC) waveguide (WG) as the light delivery system in the heat-assisted magnetic recording (HAMR) system is demonstrated. The structure consists of a 90° bending PC waveguide and a ridge dielectric waveguide taper coupler. Three-dimensional (3D) models of structures are built and simulated in order to determine light coupling and transmission efficiencies. Geometric parameters including the taper length (LTP), coupler inlet width (WFW), and PC waveguide width (WWG) are investigated. The initial simulation shows that the transmission efficiency of over 90% can be achieved with the coupler integrated with the straight PC waveguide. However, the overall transmission efficiency is substantially reduced to 53.8% when the coupler is attached to the 90° bending PC waveguide. Our analysis shows that the wave mode matching and light decay rate in the waveguide cavity are significant contributing factors. The transmission efficiency increases to around 60.8% after some modification of the bending region. |
| format | Article |
| id | doaj-art-d5ce99a964af4672918e5356af3ff3a2 |
| institution | Kabale University |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-d5ce99a964af4672918e5356af3ff3a22025-02-03T06:12:03ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/80978418097841Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic RecordingOrrathai Watcharakitchakorn0Rardchawadee Silapunt1Department of Electronic and Telecommunication Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandDepartment of Electronic and Telecommunication Engineering, King Mongkut’s University of Technology Thonburi, Bangkok 10140, ThailandThe application of the photonic crystal (PC) waveguide (WG) as the light delivery system in the heat-assisted magnetic recording (HAMR) system is demonstrated. The structure consists of a 90° bending PC waveguide and a ridge dielectric waveguide taper coupler. Three-dimensional (3D) models of structures are built and simulated in order to determine light coupling and transmission efficiencies. Geometric parameters including the taper length (LTP), coupler inlet width (WFW), and PC waveguide width (WWG) are investigated. The initial simulation shows that the transmission efficiency of over 90% can be achieved with the coupler integrated with the straight PC waveguide. However, the overall transmission efficiency is substantially reduced to 53.8% when the coupler is attached to the 90° bending PC waveguide. Our analysis shows that the wave mode matching and light decay rate in the waveguide cavity are significant contributing factors. The transmission efficiency increases to around 60.8% after some modification of the bending region.http://dx.doi.org/10.1155/2018/8097841 |
| spellingShingle | Orrathai Watcharakitchakorn Rardchawadee Silapunt Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording Advances in Materials Science and Engineering |
| title | Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording |
| title_full | Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording |
| title_fullStr | Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording |
| title_full_unstemmed | Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording |
| title_short | Design and Modeling of the Photonic Crystal Waveguide Structure for Heat-Assisted Magnetic Recording |
| title_sort | design and modeling of the photonic crystal waveguide structure for heat assisted magnetic recording |
| url | http://dx.doi.org/10.1155/2018/8097841 |
| work_keys_str_mv | AT orrathaiwatcharakitchakorn designandmodelingofthephotoniccrystalwaveguidestructureforheatassistedmagneticrecording AT rardchawadeesilapunt designandmodelingofthephotoniccrystalwaveguidestructureforheatassistedmagneticrecording |