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",

issn = "1047-6938",

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TY - GEN

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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DO - 10.1364/OPN.11.12.000022

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SN - 1047-6938

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SP - 22

EP - 23

JO - Optics and Photonics News

JF - Optics and Photonics News

ER -

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

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