| Title: |
Source misalignment in multimode polymer tapered waveguides for optical backplanes |
| Authors: |
Rashed, AM; Selviah, DR |
| Source: |
OPT ENG , 46 (1) , Article 015401. (2007) |
| Publisher Information: |
SPIE-INT SOCIETY OPTICAL ENGINEERING |
| Publication Year: |
2007 |
| Collection: |
University College London: UCL Discovery |
| Subject Terms: |
lateral misalignment; angular misalignment; polymer tapered waveguide; optical backplane; FD-BPM; modeling; multimode waveguides; BEAM-PROPAGATION METHOD |
| Description: |
Polymer tapered multimode waveguides were modeled using the finite difference wide-angle beam propagation method to investigate whether tapered input waveguide couplers decreasing in width away from the waveguide entrance give improved tolerance to lateral misalignments of an optical source compared to straight waveguides and whether there is any effect on angular misalignment tolerance for use in optical backplane interconnections. Input tapered couplers having a larger entrance and tapering down in width do indeed improve the lateral misalignment tolerance compared to straight waveguides but do so at the expense of an increased loss. Tapers have no effect on angular tolerance for strongly driven vertical cavity surface-emitting laser (VCSEL) sources although they cause a loss of angular tolerance for single-mode fiber sources and VCSELs at low drive currents. (c) 2007 Society of Photo-Optical Instrumentation Engineers. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
https://discovery.ucl.ac.uk/id/eprint/2643/1/2643.pdf; https://discovery.ucl.ac.uk/id/eprint/2643/ |
| Availability: |
https://discovery.ucl.ac.uk/id/eprint/2643/1/2643.pdf; https://discovery.ucl.ac.uk/id/eprint/2643/ |
| Rights: |
open |
| Accession Number: |
edsbas.38D00FD |
| Database: |
BASE |