Gain switching and active mode locking of mid-infrared quantum cascade lasers

Roberto Paiella; Federico Capasso; Claire F. Gmachl; Clyde G. Bethea; Harold Y. Hwang; Deborah L. Sivco; James N. Baillargeon; Albert L. Hutchinson; Alfred Y. Cho; H. C. Liu

doi:10.1364/OPN.11.12.000022

Gain switching and active mode locking of mid-infrared quantum cascade lasers

Roberto Paiella, Federico Capasso, Claire F. Gmachl, Clyde G. Bethea, Harold Y. Hwang, Deborah L. Sivco, James N. Baillargeon, Albert L. Hutchinson, Alfred Y. Cho, H. C. Liu

Research output: Contribution to specialist publication › Article

1 Scopus citations

Abstract

The gain switching and active mode locking of mid-infrared quantum cascade (QC) lasers was analyzed. A step-recovery diode that produced voltage pulses of approximately 90 ps at a repetition rate of 100 MHz to gain switch several QC lasers was used. A pulse duration of 89 ps was obtained accounting for the finite response time of the detection electronics. In the case of active mode locking, a 8-μm device with round-trip frequency of 11.65 GHz was used. The phase-locking of this multimode output was confirmed by the observation of a narrow spike centered at f_rt in the rf spectrum of quantum well infrared photodetector (QWIP) photocurrent.

Original language	English (US)
Pages	22-23
Number of pages	2
Volume	11
No	12
Specialist publication	Optics and Photonics News
DOIs	https://doi.org/10.1364/OPN.11.12.000022
State	Published - Dec 2000

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1364/OPN.11.12.000022

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title = "Gain switching and active mode locking of mid-infrared quantum cascade lasers",

abstract = "The gain switching and active mode locking of mid-infrared quantum cascade (QC) lasers was analyzed. A step-recovery diode that produced voltage pulses of approximately 90 ps at a repetition rate of 100 MHz to gain switch several QC lasers was used. A pulse duration of 89 ps was obtained accounting for the finite response time of the detection electronics. In the case of active mode locking, a 8-μm device with round-trip frequency of 11.65 GHz was used. The phase-locking of this multimode output was confirmed by the observation of a narrow spike centered at frt in the rf spectrum of quantum well infrared photodetector (QWIP) photocurrent.",

author = "Roberto Paiella and Federico Capasso and Gmachl, {Claire F.} and Bethea, {Clyde G.} and Hwang, {Harold Y.} and Sivco, {Deborah L.} and Baillargeon, {James N.} and Hutchinson, {Albert L.} and Cho, {Alfred Y.} and Liu, {H. C.}",

year = "2000",

month = dec,

doi = "10.1364/OPN.11.12.000022",

language = "English (US)",

volume = "11",

pages = "22--23",

journal = "Optics and Photonics News",

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publisher = "The Optical Society",

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T1 - Gain switching and active mode locking of mid-infrared quantum cascade lasers

AU - Paiella, Roberto

AU - Capasso, Federico

AU - Gmachl, Claire F.

AU - Bethea, Clyde G.

AU - Hwang, Harold Y.

AU - Sivco, Deborah L.

AU - Baillargeon, James N.

AU - Hutchinson, Albert L.

AU - Cho, Alfred Y.

AU - Liu, H. C.

PY - 2000/12

Y1 - 2000/12

N2 - The gain switching and active mode locking of mid-infrared quantum cascade (QC) lasers was analyzed. A step-recovery diode that produced voltage pulses of approximately 90 ps at a repetition rate of 100 MHz to gain switch several QC lasers was used. A pulse duration of 89 ps was obtained accounting for the finite response time of the detection electronics. In the case of active mode locking, a 8-μm device with round-trip frequency of 11.65 GHz was used. The phase-locking of this multimode output was confirmed by the observation of a narrow spike centered at frt in the rf spectrum of quantum well infrared photodetector (QWIP) photocurrent.

AB - The gain switching and active mode locking of mid-infrared quantum cascade (QC) lasers was analyzed. A step-recovery diode that produced voltage pulses of approximately 90 ps at a repetition rate of 100 MHz to gain switch several QC lasers was used. A pulse duration of 89 ps was obtained accounting for the finite response time of the detection electronics. In the case of active mode locking, a 8-μm device with round-trip frequency of 11.65 GHz was used. The phase-locking of this multimode output was confirmed by the observation of a narrow spike centered at frt in the rf spectrum of quantum well infrared photodetector (QWIP) photocurrent.

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JO - Optics and Photonics News

JF - Optics and Photonics News

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Gain switching and active mode locking of mid-infrared quantum cascade lasers

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