Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers

Koji Takeda, Tomonari Sato, Akihiko Shinya, Kengo Nozaki, Wataru Kobayashi, Hideaki Taniyama, Masaya Notomi, Koichi Hasebe, Takaaki Kakitsuka, Shinji Matsuo

Research output: Contribution to journalArticle

146 Citations (Scopus)

Abstract

A low operating energy is needed for nanocavity lasers designed for on-chip photonic network applications. On-chip nanocavity lasers must be driven by current because they act as light sources driven by electronic circuits. Here, we report the high-speed direct modulation of a lambda-scale embedded active region photonic-crystal (LEAP) laser that holds three records for any type of laser operated at room temperature: a low threshold current of 4.8 μA, a modulation current efficiency of 2.0 GHz μA -0.5 and an operating energy of 4.4 fJ bit -1. Five major technologies make this performance possible: a compact buried heterostructure, a photonic-crystal nanocavity, a lateral p-n junction realized by ion implantation and thermal diffusion, an InAlAs sacrificial layer and current-blocking trenches. We believe that an output power of 2.17 μW and an operating energy of 4.4 fJ bit -1 will enable us to realize on-chip photonic networks in combination with the recently developed highly sensitive receivers.

Original languageEnglish
Pages (from-to)569-575
Number of pages7
JournalNature Photonics
Volume7
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1
Externally publishedYes

Fingerprint

data transmission
Photonic crystals
Data communication systems
photonics
Lasers
chips
Photonics
crystals
lasers
Modulation
modulation
Thermal diffusion
thermal diffusion
p-n junctions
threshold currents
Ion implantation
Light sources
Heterojunctions
ion implantation
energy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics

Cite this

Takeda, K., Sato, T., Shinya, A., Nozaki, K., Kobayashi, W., Taniyama, H., ... Matsuo, S. (2013). Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers. Nature Photonics, 7(7), 569-575. https://doi.org/10.1038/nphoton.2013.110

Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers. / Takeda, Koji; Sato, Tomonari; Shinya, Akihiko; Nozaki, Kengo; Kobayashi, Wataru; Taniyama, Hideaki; Notomi, Masaya; Hasebe, Koichi; Kakitsuka, Takaaki; Matsuo, Shinji.

In: Nature Photonics, Vol. 7, No. 7, 01.07.2013, p. 569-575.

Research output: Contribution to journalArticle

Takeda, K, Sato, T, Shinya, A, Nozaki, K, Kobayashi, W, Taniyama, H, Notomi, M, Hasebe, K, Kakitsuka, T & Matsuo, S 2013, 'Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers', Nature Photonics, vol. 7, no. 7, pp. 569-575. https://doi.org/10.1038/nphoton.2013.110
Takeda, Koji ; Sato, Tomonari ; Shinya, Akihiko ; Nozaki, Kengo ; Kobayashi, Wataru ; Taniyama, Hideaki ; Notomi, Masaya ; Hasebe, Koichi ; Kakitsuka, Takaaki ; Matsuo, Shinji. / Few-fJ/bit data transmissions using directly modulated lambda-scale embedded active region photonic-crystal lasers. In: Nature Photonics. 2013 ; Vol. 7, No. 7. pp. 569-575.
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