High-brightness red-emitting AlGaInP thin-film RCLEDs

Reto Joray; Marc Ilegems; Ross Stanley; Wolfgang Schmid; Rainer Butendeich; Ralph Wirth; Arndt Jaeger; Klaus Streubel

doi:10.1117/12.579495

20 December 2004 High-brightness red-emitting AlGaInP thin film RCLEDs

Reto Joray, Marc Ilegems, Ross Stanley, Wolfgang Schmid, Rainer Butendeich, Ralph Wirth, Arndt Jaeger, Klaus Streubel

Proceedings Volume 5594, Physics and Applications of Optoelectronic Devices; (2004) https://doi.org/10.1117/12.579495
Event: Optics East, 2004, Philadelphia, Pennsylvania, United States

Abstract

High brightness AlGaInP thin-film resonant cavity LEDs with an emission wavelength around 650 nm are presented. The combination of a thin-film waveguide structure and a resonant cavity with an omnidirectional reflector (ODR) leads to significantly higher efficiencies compared to standard resonant cavity LED (RCLED) structures. Preliminary devices based on this configuration show external quantum efficiencies of 23% and 18% with and without encapsulation, respectively, despite a non-ideal detuning. These devices exhibit a narrow far-field pattern and are therefore adapted for applications requiring high brightness emitters such as for example plastic optical fiber communications. By opting for a negative detuning, i.e. a cavity resonance that is red-shifted compared to the intrinsic emission spectrum, even higher efficiencies should be achievable.

Citation Download Citation

Reto Joray, Marc Ilegems, Ross Stanley, Wolfgang Schmid, Rainer Butendeich, Ralph Wirth, Arndt Jaeger, and Klaus Streubel "High-brightness red-emitting AlGaInP thin film RCLEDs", Proc. SPIE 5594, Physics and Applications of Optoelectronic Devices, (20 December 2004); https://doi.org/10.1117/12.579495

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available