Photonic Crystal Nanobeam Cavity With Stagger Holes for Ultrafast Directly Modulated Nano-Light-Emitting Diodes

Photonic Crystal Nanobeam Cavity With Stagger Holes for Ultrafast Directly Modulated Nano-Light-Emitting Diodes

A photonic crystal nanobeam cavity with stagger holes in InP/InGaAsP/InP heterostructure is proposed for ultrafast directly modulated nano-light-emitting diodes (nanoLEDs). With stagger holes, the quality factor Q can be engineered in the range of 10 2 ~ 10 4 while keeping a small mode volume ( V ef...

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Veröffentlicht in:IEEE photonics journal 2013-02, Vol.5 (1), p.4700306-4700306
Hauptverfasser: Yongzhuo Li, Kaiyu Cui, Xue Feng, Yidong Huang, Da Wang, Zhilei Huang, Wei Zhang
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
Cavity resonators
Indium phosphide
light-emitting diodes (LEDs)
Modulation
nanocavities
Optimized production technology
Photonic crystals
Photonics
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Zusammenfassung:A photonic crystal nanobeam cavity with stagger holes in InP/InGaAsP/InP heterostructure is proposed for ultrafast directly modulated nano-light-emitting diodes (nanoLEDs). With stagger holes, the quality factor Q can be engineered in the range of 10 2 ~ 10 4 while keeping a small mode volume ( V eff ). As a result, the modulation speed of nanoLEDs can be dramatically improved by a small V eff to enhanced spontaneous emission (SpE) rate and a moderate Q to counterbalance SpE lifetime and photon lifetime of the cavity. In our simulation, the direct modulation bandwidth could be higher than 60 GHz with optimal Q value of 2150 and V eff of 2.3( λ 0 /2 n ) 3 .
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2013.2240289