Optical bistability from domain formation in Terahertz quantum cascade lasers

Dan G. Allen; Terry W. Hargett; John L. Reno; Michael C. Wanke

doi:10.1109/JSTQE.2010.2044748

Optical bistability from domain formation in Terahertz quantum cascade lasers

Dan G. Allen
, Terry W. Hargett
, John L. Reno
, Michael C. Wanke

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

2 Scopus citations

Abstract

Novel transverse-mode behavior and bistability are observed in spectral and far-field measurements of terahertz-distributed feedback quantum cascade lasers. Prior to onset of negative differential resistance (NDR) at the maximum superlattice current, lasing is exclusive to a single (TM00) transverse mode. Precisely at NDR, lasing switches to a distinct (TM01) transverse mode. The spatial redistribution of optical power in the NDR regime is explained in terms of formation of bias domains localized to the lateral edges of the waveguide. As the bias voltage is reduced below NDR, hysteresis is observed as continued lasing on the TM01 mode. Photon-assisted current transport is proposed as the dominant mechanism for the bistability. © 2010 IEEE.

Original language	English
Pages (from-to)	222-228
Number of pages	7
Journal	IEEE Journal on Selected Topics in Quantum Electronics
Volume	17
Issue number	1
DOIs	https://doi.org/10.1109/JSTQE.2010.2044748
State	Published - Jan 1 2011
Externally published	Yes

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title = "Optical bistability from domain formation in Terahertz quantum cascade lasers",

abstract = "Novel transverse-mode behavior and bistability are observed in spectral and far-field measurements of terahertz-distributed feedback quantum cascade lasers. Prior to onset of negative differential resistance (NDR) at the maximum superlattice current, lasing is exclusive to a single (TM00) transverse mode. Precisely at NDR, lasing switches to a distinct (TM01) transverse mode. The spatial redistribution of optical power in the NDR regime is explained in terms of formation of bias domains localized to the lateral edges of the waveguide. As the bias voltage is reduced below NDR, hysteresis is observed as continued lasing on the TM01 mode. Photon-assisted current transport is proposed as the dominant mechanism for the bistability. {\textcopyright} 2010 IEEE.",

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year = "2011",

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doi = "10.1109/JSTQE.2010.2044748",

language = "English",

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T1 - Optical bistability from domain formation in Terahertz quantum cascade lasers

AU - Allen, Dan G.

AU - Hargett, Terry W.

AU - Reno, John L.

AU - Wanke, Michael C.

PY - 2011/1/1

Y1 - 2011/1/1

N2 - Novel transverse-mode behavior and bistability are observed in spectral and far-field measurements of terahertz-distributed feedback quantum cascade lasers. Prior to onset of negative differential resistance (NDR) at the maximum superlattice current, lasing is exclusive to a single (TM00) transverse mode. Precisely at NDR, lasing switches to a distinct (TM01) transverse mode. The spatial redistribution of optical power in the NDR regime is explained in terms of formation of bias domains localized to the lateral edges of the waveguide. As the bias voltage is reduced below NDR, hysteresis is observed as continued lasing on the TM01 mode. Photon-assisted current transport is proposed as the dominant mechanism for the bistability. © 2010 IEEE.

AB - Novel transverse-mode behavior and bistability are observed in spectral and far-field measurements of terahertz-distributed feedback quantum cascade lasers. Prior to onset of negative differential resistance (NDR) at the maximum superlattice current, lasing is exclusive to a single (TM00) transverse mode. Precisely at NDR, lasing switches to a distinct (TM01) transverse mode. The spatial redistribution of optical power in the NDR regime is explained in terms of formation of bias domains localized to the lateral edges of the waveguide. As the bias voltage is reduced below NDR, hysteresis is observed as continued lasing on the TM01 mode. Photon-assisted current transport is proposed as the dominant mechanism for the bistability. © 2010 IEEE.

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DO - 10.1109/JSTQE.2010.2044748

M3 - Article

SN - 1077-260X

VL - 17

SP - 222

EP - 228

JO - IEEE Journal on Selected Topics in Quantum Electronics

JF - IEEE Journal on Selected Topics in Quantum Electronics

IS - 1

ER -

Optical bistability from domain formation in Terahertz quantum cascade lasers

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