GaN-based miniaturized cyan light-emitting diodes on a patterned sapphire substrate with improved fiber coupling for very high-speed plastic optical fiber communication

Jhih Min Wun, Che Wei Lin, Wei Chen, Jinn-Kong Sheu, Ching Liang Lin, Yun Li Li, John E. Bowers, Jin Wei Shi, Juri Vinogradov, Roman Kruglov, Olaf Ziemann

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We demonstrate the performance of a novel cyan light-emitting diode (LED) on a patterned sapphire (PS) substrate as a light source for plastic optical fiber (POF) communications with the central wavelength at 500 nm. To further enhance the external quantum efficiency (EQE) and output power of this miniaturized high-speed LED, a LED with a PS substrate is adopted. Furthermore, by greatly reducing the number of active In x Ga 1-x N/GaN multiple quantum wells (MQWs) to four and minimizing the device active area, we can achieve a record-high electrical-to-optical (E-O) bandwidth (as high as 400 MHz) among all the reported high-speed visible LEDs under a very small dc bias current (40 mA). The fiber coupling efficiency has been improved in 4 dB using lens with a 500-μm diameter mounted on the LED chip. Thus, the maximum fiber-coupled power was-2.67 dBm at the bias current of 40 mA. The 1.07-Gb/s data transmissions over a 50-m SI-POF fiber have been successfully demonstrated using this device at the bias current of 40 mA.

Original languageEnglish
Article number6255750
Pages (from-to)1520-1529
Number of pages10
JournalIEEE Photonics Journal
Volume4
Issue number5
DOIs
Publication statusPublished - 2012 Aug 30

Fingerprint

Optical fiber communication
Plastic optical fibers
plastic fibers
Sapphire
Light emitting diodes
sapphire
light emitting diodes
optical fibers
communication
high speed
Bias currents
fibers
Fibers
Substrates
Optical fiber coupling
International System of Units
data transmission
Quantum efficiency
Data communication systems
Semiconductor quantum wells

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

Cite this

Wun, Jhih Min ; Lin, Che Wei ; Chen, Wei ; Sheu, Jinn-Kong ; Lin, Ching Liang ; Li, Yun Li ; Bowers, John E. ; Shi, Jin Wei ; Vinogradov, Juri ; Kruglov, Roman ; Ziemann, Olaf. / GaN-based miniaturized cyan light-emitting diodes on a patterned sapphire substrate with improved fiber coupling for very high-speed plastic optical fiber communication. In: IEEE Photonics Journal. 2012 ; Vol. 4, No. 5. pp. 1520-1529.
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GaN-based miniaturized cyan light-emitting diodes on a patterned sapphire substrate with improved fiber coupling for very high-speed plastic optical fiber communication. / Wun, Jhih Min; Lin, Che Wei; Chen, Wei; Sheu, Jinn-Kong; Lin, Ching Liang; Li, Yun Li; Bowers, John E.; Shi, Jin Wei; Vinogradov, Juri; Kruglov, Roman; Ziemann, Olaf.

In: IEEE Photonics Journal, Vol. 4, No. 5, 6255750, 30.08.2012, p. 1520-1529.

Research output: Contribution to journalArticle

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AU - Ziemann, Olaf

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