High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination

Gang Chen; Clyde G. Bethea; Rainer Martini; P. D. Grant; R. Dudek; H. C. Liu

doi:10.1063/1.3223597

High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination

Gang Chen
, Clyde G. Bethea
, Rainer Martini
, P. D. Grant
, R. Dudek
, H. C. Liu

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

35 Scopus citations

Abstract

A simple experimental scheme to control intersubband lasing transition by optically induced nonresonant interband transition is presented, allowing for high-speed all-optical modulation of mid-infrared (MIR) quantum cascade laser (QCL). Illuminating the QCL front facet with 100 fs Ti:sapphire laser pulse, a fast modulation of a cw-MIR emission is observed with an estimated transient time of less than 81 ps, limited by instrument bandwidth, and a modulation depth of 18%. It has a great potential for high-speed modulation of high power QCL at room temperature.

Original language	English
Article number	101104
Journal	Applied Physics Letters
Volume	95
Issue number	10
DOIs	https://doi.org/10.1063/1.3223597
State	Published - 2009

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title = "High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination",

abstract = "A simple experimental scheme to control intersubband lasing transition by optically induced nonresonant interband transition is presented, allowing for high-speed all-optical modulation of mid-infrared (MIR) quantum cascade laser (QCL). Illuminating the QCL front facet with 100 fs Ti:sapphire laser pulse, a fast modulation of a cw-MIR emission is observed with an estimated transient time of less than 81 ps, limited by instrument bandwidth, and a modulation depth of 18\%. It has a great potential for high-speed modulation of high power QCL at room temperature.",

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T1 - High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination

AU - Chen, Gang

AU - Bethea, Clyde G.

AU - Martini, Rainer

AU - Grant, P. D.

AU - Dudek, R.

AU - Liu, H. C.

PY - 2009

Y1 - 2009

N2 - A simple experimental scheme to control intersubband lasing transition by optically induced nonresonant interband transition is presented, allowing for high-speed all-optical modulation of mid-infrared (MIR) quantum cascade laser (QCL). Illuminating the QCL front facet with 100 fs Ti:sapphire laser pulse, a fast modulation of a cw-MIR emission is observed with an estimated transient time of less than 81 ps, limited by instrument bandwidth, and a modulation depth of 18%. It has a great potential for high-speed modulation of high power QCL at room temperature.

AB - A simple experimental scheme to control intersubband lasing transition by optically induced nonresonant interband transition is presented, allowing for high-speed all-optical modulation of mid-infrared (MIR) quantum cascade laser (QCL). Illuminating the QCL front facet with 100 fs Ti:sapphire laser pulse, a fast modulation of a cw-MIR emission is observed with an estimated transient time of less than 81 ps, limited by instrument bandwidth, and a modulation depth of 18%. It has a great potential for high-speed modulation of high power QCL at room temperature.

UR - https://www.scopus.com/pages/publications/70249107460

UR - https://www.scopus.com/pages/publications/70249107460#tab=citedBy

U2 - 10.1063/1.3223597

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VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 10

M1 - 101104

ER -

High-speed all-optical modulation of a standard quantum cascade laser by front facet illumination

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