Gain-switching dynamics in optically pumped single-mode InGaN vertical-cavity surfaceemitting lasers

Shaoqiang Chen; Akifumi Asahara; Takashi Ito; Jiangyong Zhang; Baoping Zhang; Tohru Suemoto; Masahiro Yoshita; Hidefumi Akiyama

doi:10.1364/OE.22.004196

Gain-switching dynamics in optically pumped single-mode InGaN vertical-cavity surfaceemitting lasers

Shaoqiang Chen^*
, Akifumi Asahara
, Takashi Ito
, Jiangyong Zhang
, Baoping Zhang
, Tohru Suemoto
, Masahiro Yoshita
, Hidefumi Akiyama

^*Corresponding author for this work

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

10 Scopus citations

Abstract

The gain-switching dynamics of single-mode pulses were studied in blue InGaN multiple-quantum-well vertical-cavity surface-emitting lasers (VCSELs) through impulsive optical pumping. We measured the shortest single-mode pulses of 6.0 ps in width with a method of upconversion, and also obtained the pulse width and the delay time as functions of pump powers from streak-camera measurements. Single-mode rate-equation calculations quantitatively and consistently explained the observed data. The calculations indicated that the pulse width in the present VCSELs was mostly limited by modal gain, and suggested that subpicosecond pulses should be possible within feasible device parameters.

Original language	English
Pages (from-to)	4196-4201
Number of pages	6
Journal	Optics Express
Volume	22
Issue number	4
DOIs	https://doi.org/10.1364/OE.22.004196
State	Published - 24 Feb 2014
Externally published	Yes

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title = "Gain-switching dynamics in optically pumped single-mode InGaN vertical-cavity surfaceemitting lasers",

abstract = "The gain-switching dynamics of single-mode pulses were studied in blue InGaN multiple-quantum-well vertical-cavity surface-emitting lasers (VCSELs) through impulsive optical pumping. We measured the shortest single-mode pulses of 6.0 ps in width with a method of upconversion, and also obtained the pulse width and the delay time as functions of pump powers from streak-camera measurements. Single-mode rate-equation calculations quantitatively and consistently explained the observed data. The calculations indicated that the pulse width in the present VCSELs was mostly limited by modal gain, and suggested that subpicosecond pulses should be possible within feasible device parameters.",

author = "Shaoqiang Chen and Akifumi Asahara and Takashi Ito and Jiangyong Zhang and Baoping Zhang and Tohru Suemoto and Masahiro Yoshita and Hidefumi Akiyama",

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T1 - Gain-switching dynamics in optically pumped single-mode InGaN vertical-cavity surfaceemitting lasers

AU - Chen, Shaoqiang

AU - Asahara, Akifumi

AU - Ito, Takashi

AU - Zhang, Jiangyong

AU - Zhang, Baoping

AU - Suemoto, Tohru

AU - Yoshita, Masahiro

AU - Akiyama, Hidefumi

PY - 2014/2/24

Y1 - 2014/2/24

N2 - The gain-switching dynamics of single-mode pulses were studied in blue InGaN multiple-quantum-well vertical-cavity surface-emitting lasers (VCSELs) through impulsive optical pumping. We measured the shortest single-mode pulses of 6.0 ps in width with a method of upconversion, and also obtained the pulse width and the delay time as functions of pump powers from streak-camera measurements. Single-mode rate-equation calculations quantitatively and consistently explained the observed data. The calculations indicated that the pulse width in the present VCSELs was mostly limited by modal gain, and suggested that subpicosecond pulses should be possible within feasible device parameters.

AB - The gain-switching dynamics of single-mode pulses were studied in blue InGaN multiple-quantum-well vertical-cavity surface-emitting lasers (VCSELs) through impulsive optical pumping. We measured the shortest single-mode pulses of 6.0 ps in width with a method of upconversion, and also obtained the pulse width and the delay time as functions of pump powers from streak-camera measurements. Single-mode rate-equation calculations quantitatively and consistently explained the observed data. The calculations indicated that the pulse width in the present VCSELs was mostly limited by modal gain, and suggested that subpicosecond pulses should be possible within feasible device parameters.

UR - https://www.scopus.com/pages/publications/84988318636

U2 - 10.1364/OE.22.004196

DO - 10.1364/OE.22.004196

M3 - 文章

AN - SCOPUS:84988318636

SN - 1094-4087

VL - 22

SP - 4196

EP - 4201

JO - Optics Express

JF - Optics Express

IS - 4

ER -

Gain-switching dynamics in optically pumped single-mode InGaN vertical-cavity surfaceemitting lasers

Abstract

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