Genc, M;
Li, Z;
Morales, JSD;
Hazarika, A;
Hwang, HY;
Aksit, K;
O’Carroll, G;
... Corbett, B; + view all
(2025)
Advancements in GaN-based Horizontal-Cavity and Surface-Emitting Superluminescent Diodes for Next Generation Holographic Displays.
In: Morkoç, Hadis and Fujioka, Hiroshi and Schwarz, Ulrich T, (eds.)
Proceedings of SPIE the International Society for Optical Engineering.
(pp. p. 23).
SPIE: San Francisco, CA, USA.
Preview |
Text
ganbased.pdf - Accepted Version Download (14MB) | Preview |
Abstract
Surface-emitting superluminescent diodes (SLDs) with horizontal cavities in the visible spectrum offer a significant advancement in optoelectronics, combining the benefits of LEDs and laser diodes. Characterized by broad emission spectrum, directionality, and high output power, SLDs are ideal for applications requiring high-brightness, high spatial coherence, and low temporal coherence, such as imaging and projection systems due to their speckle-free emission. This study focuses on SLDs emitting in the blue spectral region using gallium nitride (GaN) materials. Advanced fabrication techniques yielded a surface-emitting architecture using horizontal ridge waveguiding with a 45° total internal reflector on the facets, achieving high power and broad spectral output. The SLDs demonstrated a peak emission wavelength in the 4xx nm range with FWHM of 2-8 nm, depending on cavity length, and peak optical output power up to 1 W under pulse conditions. These features make SLDs cost-effective and suitable for next-gen optical systems, including holographic display applications, highlighting their potential for widespread adoption in high-performance technologies.
| Type: | Proceedings paper |
|---|---|
| Title: | Advancements in GaN-based Horizontal-Cavity and Surface-Emitting Superluminescent Diodes for Next Generation Holographic Displays |
| Event: | Gallium Nitride Materials and Devices XX |
| Dates: | 25 Jan 2025 - 31 Jan 2025 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1117/12.3044125 |
| Publisher version: | https://doi.org/10.1117/12.3044125 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10210022 |
Archive Staff Only
 |
View Item |
