Active mode locking of broadband quantum cascade lasers

Alexander Soibel; Federico Capasso; Claire F. Gmachl; Milton L. Peabody; A. Michael Sergent; Roberto Paiella; Harold Y. Hwang; Deborah L. Sivco; Alfred Y. Cho; H. C. Liu; Christian Jirauschek; Franz X. Kärtner

doi:10.1109/JQE.2004.830186

Active mode locking of broadband quantum cascade lasers

Alexander Soibel, Federico Capasso, Claire F. Gmachl, Milton L. Peabody, A. Michael Sergent, Roberto Paiella, Harold Y. Hwang, Deborah L. Sivco, Alfred Y. Cho, H. C. Liu, Christian Jirauschek, Franz X. Kärtner

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

18 Scopus citations

Abstract

Active mode locking in broadband quantum cascade (QC) lasers with a repetition rate of about 14.3 GHz has been achieved through the modulation of the laser bias current. At low driving currents, the active mode locking in broadband QC lasers resembles the active mode locking in single-wavelength QC lasers, while at high driving currents, the mode locking properties are governed by the broad spectral gain of these lasers. At high bias currents, the active modulation excites Fabry-Perot modes across the entire gain spectrum from 6.7 to 7.4 μm, with clear evidence of mode locking. The spectral width of the optical gain in the broadband QC lasers exceeds 2 THz and indicates the potential for generating subpicosecond pulses.

Original language	English (US)
Pages (from-to)	844-851
Number of pages	8
Journal	IEEE Journal of Quantum Electronics
Volume	40
Issue number	7
DOIs	https://doi.org/10.1109/JQE.2004.830186
State	Published - Jul 1 2004

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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Soibel, Alexander ; Capasso, Federico ; Gmachl, Claire F. ; Peabody, Milton L. ; Sergent, A. Michael ; Paiella, Roberto ; Hwang, Harold Y. ; Sivco, Deborah L. ; Cho, Alfred Y. ; Liu, H. C. ; Jirauschek, Christian ; Kärtner, Franz X. / Active mode locking of broadband quantum cascade lasers. In: IEEE Journal of Quantum Electronics. 2004 ; Vol. 40, No. 7. pp. 844-851.

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title = "Active mode locking of broadband quantum cascade lasers",

abstract = "Active mode locking in broadband quantum cascade (QC) lasers with a repetition rate of about 14.3 GHz has been achieved through the modulation of the laser bias current. At low driving currents, the active mode locking in broadband QC lasers resembles the active mode locking in single-wavelength QC lasers, while at high driving currents, the mode locking properties are governed by the broad spectral gain of these lasers. At high bias currents, the active modulation excites Fabry-Perot modes across the entire gain spectrum from 6.7 to 7.4 μm, with clear evidence of mode locking. The spectral width of the optical gain in the broadband QC lasers exceeds 2 THz and indicates the potential for generating subpicosecond pulses.",

author = "Alexander Soibel and Federico Capasso and Gmachl, {Claire F.} and Peabody, {Milton L.} and Sergent, {A. Michael} and Roberto Paiella and Hwang, {Harold Y.} and Sivco, {Deborah L.} and Cho, {Alfred Y.} and Liu, {H. C.} and Christian Jirauschek and K{\"a}rtner, {Franz X.}",

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Active mode locking of broadband quantum cascade lasers. / Soibel, Alexander; Capasso, Federico; Gmachl, Claire F.; Peabody, Milton L.; Sergent, A. Michael; Paiella, Roberto; Hwang, Harold Y.; Sivco, Deborah L.; Cho, Alfred Y.; Liu, H. C.; Jirauschek, Christian; Kärtner, Franz X.

In: IEEE Journal of Quantum Electronics, Vol. 40, No. 7, 01.07.2004, p. 844-851.

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

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AU - Capasso, Federico

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AU - Peabody, Milton L.

AU - Sergent, A. Michael

AU - Paiella, Roberto

AU - Hwang, Harold Y.

AU - Sivco, Deborah L.

AU - Cho, Alfred Y.

AU - Liu, H. C.

AU - Jirauschek, Christian

AU - Kärtner, Franz X.

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AB - Active mode locking in broadband quantum cascade (QC) lasers with a repetition rate of about 14.3 GHz has been achieved through the modulation of the laser bias current. At low driving currents, the active mode locking in broadband QC lasers resembles the active mode locking in single-wavelength QC lasers, while at high driving currents, the mode locking properties are governed by the broad spectral gain of these lasers. At high bias currents, the active modulation excites Fabry-Perot modes across the entire gain spectrum from 6.7 to 7.4 μm, with clear evidence of mode locking. The spectral width of the optical gain in the broadband QC lasers exceeds 2 THz and indicates the potential for generating subpicosecond pulses.

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