Journal ArticleDOI
Temperature dependence of InGaAs/GaAs quantum well microcavity light-emitting diodes
Reads0
Chats0
TLDR
In this article, a systematic investigation of the emission properties of semiconductor microcavity light-emitting diodes (MC-LEDs) with different cavity detuning is presented.Abstract:
We report a systematic investigation of the emission properties of semiconductor microcavity light-emitting diodes (MC-LEDs) with different cavity detuning. Evidence that varying the cavity detuning leads to temperature insensitive output characteristics is provided by changes in the temperature dependence of the slope efficiency extracted from the light output versus current characteristics. For resonantly tuned devices the slope efficiency decreases monotonically with increasing temperature. However when the cavity peak is detuned to long wavelength with respect to the room temperature quantum well (QW) emission, temperature insensitive characteristics are achieved. Compared to a noncavity type LED, enhanced efficiency and narrow spectral linewidth have been observed for the MC-LEDs with the highest output efficiency achieved when the QW emission and cavity peak are exact resonant.read more
Citations
More filters
Journal ArticleDOI
Temperature behaviour of resonant cavity light-emitting diodes at 650 nm
TL;DR: In this paper, the performance characteristics of resonant cavity light-emitting diodes operating at the wavelength of 650 nm have been studied and it has been shown that a variation in device temperature significantly modifies the far-field pattern and thus the fibre coupling efficiency, due to a cavity detuning effect.
Journal ArticleDOI
High-Performance InGaN-Based Green Resonant-Cavity Light-Emitting Diodes for Plastic Optical Fiber Applications
TL;DR: In this article, a green resonant-cavity light-emitting diodes (RCLEDs) with a plating Cu substrate for plastic optical fiber communication applications are reported.
Journal ArticleDOI
Resonant cavity light-emitting diodes at 660 and 880 nm
V. Vilokkinen,Pekko Sipilä,P. Melanen,Mika J. Saarinen,S. Orsila,Mihail Dumitrescu,Pekka Savolainen,Mika Toivonen,M. Pessa +8 more
TL;DR: In this paper, a 1−λ-thick cavities sandwiched between AlGaAs distributed Bragg reflectors were detuned to improve temperature stability and light extraction in resonance cavity light-emitting diodes (RCLEDs).
Journal ArticleDOI
Spectral and thermal properties of red AlGaInP RCLEDs for polymer optical fibre applications
TL;DR: In this article, the performance of red AlGaInP-based resonant cavity light-emitting diodes is investigated using angular dependent photomodulated reflectance to determine the quantum-well energy, and standard reflectivity measurements performed directly on devices to find the cavity mode (CM), angular and spectral features of the RCLED emission may be identified.
Journal ArticleDOI
Cavity detuning effects in semiconductor microcavity light emitting diodes
TL;DR: In this article, the effect of cavity detuning on light output power versus current, emission spectroscopy and far-field emission patterns have been used to characterize microcavity light emitting diodes (MC-LEDs).
References
More filters
Journal ArticleDOI
Resonant cavity light‐emitting diode
TL;DR: In this article, the active region of a light-emitting diode (LED) is placed in a resonant optical cavity and the optical emission is restricted to the modes of the cavity.
Journal ArticleDOI
Temperature and modulation characteristics of resonant-cavity light-emitting diodes
TL;DR: In this article, the authors derived analytical formulas for the enhancement of spontaneous emission along the optical axis of the cavity and established the design rules for high-efficiency operation of RCLEDs.
Journal ArticleDOI
Impact of planar microcavity effects on light extraction-Part II: selected exact simulations and role of photon recycling
TL;DR: In this article, the exact calculation of dipole emission modifications in an arbitrary multilayer structure was used to obtain the extraction efficiency from realistic planar microcavities, additional insights gained through this exact approach compared to the simplified one of Part I of this paper were first discussed in the case of a dielectric slab.
Journal ArticleDOI
Enhanced spectral power density and reduced linewidth at 1.3 μm in an InGaAsP quantum well resonant‐cavity light‐emitting diode
TL;DR: In this article, the active region of an InGaAsP single-quantum well light-emitting diode (LED) emitting at 1.3 μm has been placed in the antinode of a resonant cavity consisting of a 32-period distributed Bragg reflector (DBR) and a top silver mirror, with reflectivities of 92% and 95%, respectively.
Journal ArticleDOI
Increased fiber communications bandwidth from a resonant cavity light emitting diode emitting at λ=940 nm
Neil Edmund James Hunt,Erdmann Frederick Schubert,Rose Fasano Kopf,Deborah Lee Sivco,A.Y. Cho,G. J. Zydzik +5 more
TL;DR: In this paper, it was shown that the spontaneous spectrum exhibits a very narrow peak of only 5 nm width, as opposed to the 50 nm wide peak of an 875 nm wavelength reference LED, which drastically reduced the effects of chromatic dispersion within a 3.37 km length of 62.5 μm core graded index multimode fiber.