Abstract
Vertical cavity surface emitting lasers (VCSEL) with high-order Laguerre-Gaussian (LG) mode profiles, are superresolved for optical data storage spots up to 50% smaller than the classical diffraction limit of equivalent fundamental Gaussian modes with better than 10:1 signal to noise ratio between main and side lobe intensities. LG mode profiles are attained using a post-fabrication, post-packaging annealing process, demonstrated to be repeatable within a given batch, on proton-implant midsize aperture VCSEL. Superresolution, or manipulation of the input beam profile, is used to decrease the size of the spot on the disk surface to below its classical diffraction limit.
Original language | English (US) |
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Pages (from-to) | 43-45 |
Number of pages | 3 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3864 |
State | Published - 1999 |
Externally published | Yes |
Event | Proceedings of the 1999 Joint International Symposium on Optical Memory and Optical Optical Data Storage (ISOM/ODS'99) - Koloa, HI, USA Duration: Jul 12 1999 → Jul 15 1999 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering