Energy efficient microcavity lasers with 20 and 40 Gb/s data transmission

F. Tan; C. H. Wu; M. Feng; N. Holonyak

doi:10.1063/1.3589363

Energy efficient microcavity lasers with 20 and 40 Gb/s data transmission

F. Tan, C. H. Wu, M. Feng, N. Holonyak

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

Microcavity lasers (μCLs), reduced-size (≤3 μm aperture) vertical cavity surface-emitting lasers (VCSELs) defined by the buried-oxide process for current and field confinement (thus wide mode spacing), are demonstrated with low threshold current, sharp turn-on L-I characteristics, and wide bandwidth operation. Due to the enhanced spontaneous recombination rate at reduced mode and improved photon density, μCLs exhibit lower charge-field resonance peaks at a modulation bandwidth f_{-3 dB} =18.7 GHz, thus permitting open-"eye" operation at 20 and 40 Gb/s data rates (I≤3 mA). The energy efficiency for 20 Gb/s data transmission is measured to be 4.84 Gb/s/mW, which is eight times better than 7 μm aperture VCSELs.

Original language	English (US)
Article number	191107
Journal	Applied Physics Letters
Volume	98
Issue number	19
DOIs	https://doi.org/10.1063/1.3589363
State	Published - May 9 2011

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Physics and Astronomy (miscellaneous)

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10.1063/1.3589363

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title = "Energy efficient microcavity lasers with 20 and 40 Gb/s data transmission",

abstract = "Microcavity lasers (μCLs), reduced-size (≤3 μm aperture) vertical cavity surface-emitting lasers (VCSELs) defined by the buried-oxide process for current and field confinement (thus wide mode spacing), are demonstrated with low threshold current, sharp turn-on L-I characteristics, and wide bandwidth operation. Due to the enhanced spontaneous recombination rate at reduced mode and improved photon density, μCLs exhibit lower charge-field resonance peaks at a modulation bandwidth f-3 dB =18.7 GHz, thus permitting open-{"}eye{"} operation at 20 and 40 Gb/s data rates (I≤3 mA). The energy efficiency for 20 Gb/s data transmission is measured to be 4.84 Gb/s/mW, which is eight times better than 7 μm aperture VCSELs.",

author = "F. Tan and Wu, {C. H.} and M. Feng and N. Holonyak",

note = "Funding Information: N. Holonyak, Jr. is grateful for the support of the John Bardeen Chair (Sony) of Electrical and Computer Engineering and Physics and M. Feng for the support of the Nick Holonyak, Jr., Chair of Electrical and Computer Engineering. The authors would like to thank Dr. Michael Gerhold (Army Research Office) and acknowledge the support by Army Research Office under Grant No. W911NF-08-1-0469. ",

year = "2011",

month = may,

day = "9",

doi = "10.1063/1.3589363",

language = "English (US)",

volume = "98",

journal = "Applied Physics Letters",

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T1 - Energy efficient microcavity lasers with 20 and 40 Gb/s data transmission

AU - Tan, F.

AU - Wu, C. H.

AU - Feng, M.

AU - Holonyak, N.

N1 - Funding Information: N. Holonyak, Jr. is grateful for the support of the John Bardeen Chair (Sony) of Electrical and Computer Engineering and Physics and M. Feng for the support of the Nick Holonyak, Jr., Chair of Electrical and Computer Engineering. The authors would like to thank Dr. Michael Gerhold (Army Research Office) and acknowledge the support by Army Research Office under Grant No. W911NF-08-1-0469.

PY - 2011/5/9

Y1 - 2011/5/9

N2 - Microcavity lasers (μCLs), reduced-size (≤3 μm aperture) vertical cavity surface-emitting lasers (VCSELs) defined by the buried-oxide process for current and field confinement (thus wide mode spacing), are demonstrated with low threshold current, sharp turn-on L-I characteristics, and wide bandwidth operation. Due to the enhanced spontaneous recombination rate at reduced mode and improved photon density, μCLs exhibit lower charge-field resonance peaks at a modulation bandwidth f-3 dB =18.7 GHz, thus permitting open-"eye" operation at 20 and 40 Gb/s data rates (I≤3 mA). The energy efficiency for 20 Gb/s data transmission is measured to be 4.84 Gb/s/mW, which is eight times better than 7 μm aperture VCSELs.

AB - Microcavity lasers (μCLs), reduced-size (≤3 μm aperture) vertical cavity surface-emitting lasers (VCSELs) defined by the buried-oxide process for current and field confinement (thus wide mode spacing), are demonstrated with low threshold current, sharp turn-on L-I characteristics, and wide bandwidth operation. Due to the enhanced spontaneous recombination rate at reduced mode and improved photon density, μCLs exhibit lower charge-field resonance peaks at a modulation bandwidth f-3 dB =18.7 GHz, thus permitting open-"eye" operation at 20 and 40 Gb/s data rates (I≤3 mA). The energy efficiency for 20 Gb/s data transmission is measured to be 4.84 Gb/s/mW, which is eight times better than 7 μm aperture VCSELs.

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Energy efficient microcavity lasers with 20 and 40 Gb/s data transmission

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