Spatial patterns in semiconductor lasers

G. Khitrova; F. Brown de Colstoun; C. W. Lowry; E. M. Wright; H. M. Gibbs; T. M. Brennan; B. E. Hammons

Spatial patterns in semiconductor lasers

G. Khitrova, F. Brown de Colstoun, C. W. Lowry, E. M. Wright, H. M. Gibbs, T. M. Brennan, B. E. Hammons

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have triggered transverse instabilities by injecting a CW monochromatic (10MHz) beam into a vertical-cavity surface-emitting laser (VCSEL). With increased injection current, the TEM₀₀ transverse mode changes to a combination of TEM₀₀, TEM^*₀₁ (doughnut), and TEM₁₁. Various transverse modes patterns can then be produced by frequency tuning the injection. Interferometrically analyzing these patterns shows that some zero-field points are field vortices. The position of the vortex depends on injection frequency, power, polarization, and input position. The circulation of the phase gradient on any loop that encloses the vortex core is equal to 2kπ, with k (equal to one in our experiment) representing the order of the vortex, or topological charge.

Original language	English (US)
Title of host publication	Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting
Publisher	Publ by IEEE
Pages	304-305
Number of pages	2
ISBN (Print)	0780312635
State	Published - 1993
Event	Annual Meeting of the IEEE Lasers and Electro-Optics Society - San jose, CA, USA Duration: Nov 15 1993 → Nov 18 1993

Publication series

Name	Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting

Other

Other	Annual Meeting of the IEEE Lasers and Electro-Optics Society
City	San jose, CA, USA
Period	11/15/93 → 11/18/93

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

Cite this

Spatial patterns in semiconductor lasers. / Khitrova, G.; Brown de Colstoun, F.; Lowry, C. W. et al.
Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting. Publ by IEEE, 1993. p. 304-305 (Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Khitrova, G, Brown de Colstoun, F, Lowry, CW, Wright, EM, Gibbs, HM, Brennan, TM & Hammons, BE 1993, Spatial patterns in semiconductor lasers. in Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting, Publ by IEEE, pp. 304-305, Annual Meeting of the IEEE Lasers and Electro-Optics Society, San jose, CA, USA, 11/15/93.

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title = "Spatial patterns in semiconductor lasers",

abstract = "We have triggered transverse instabilities by injecting a CW monochromatic (10MHz) beam into a vertical-cavity surface-emitting laser (VCSEL). With increased injection current, the TEM00 transverse mode changes to a combination of TEM00, TEM*01 (doughnut), and TEM11. Various transverse modes patterns can then be produced by frequency tuning the injection. Interferometrically analyzing these patterns shows that some zero-field points are field vortices. The position of the vortex depends on injection frequency, power, polarization, and input position. The circulation of the phase gradient on any loop that encloses the vortex core is equal to 2kπ, with k (equal to one in our experiment) representing the order of the vortex, or topological charge.",

author = "G. Khitrova and {Brown de Colstoun}, F. and Lowry, {C. W.} and Wright, {E. M.} and Gibbs, {H. M.} and Brennan, {T. M.} and Hammons, {B. E.}",

year = "1993",

language = "English (US)",

isbn = "0780312635",

series = "Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting",

publisher = "Publ by IEEE",

pages = "304--305",

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note = "Annual Meeting of the IEEE Lasers and Electro-Optics Society ; Conference date: 15-11-1993 Through 18-11-1993",

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TY - GEN

T1 - Spatial patterns in semiconductor lasers

AU - Khitrova, G.

AU - Brown de Colstoun, F.

AU - Lowry, C. W.

AU - Wright, E. M.

AU - Gibbs, H. M.

AU - Brennan, T. M.

AU - Hammons, B. E.

PY - 1993

Y1 - 1993

N2 - We have triggered transverse instabilities by injecting a CW monochromatic (10MHz) beam into a vertical-cavity surface-emitting laser (VCSEL). With increased injection current, the TEM00 transverse mode changes to a combination of TEM00, TEM*01 (doughnut), and TEM11. Various transverse modes patterns can then be produced by frequency tuning the injection. Interferometrically analyzing these patterns shows that some zero-field points are field vortices. The position of the vortex depends on injection frequency, power, polarization, and input position. The circulation of the phase gradient on any loop that encloses the vortex core is equal to 2kπ, with k (equal to one in our experiment) representing the order of the vortex, or topological charge.

AB - We have triggered transverse instabilities by injecting a CW monochromatic (10MHz) beam into a vertical-cavity surface-emitting laser (VCSEL). With increased injection current, the TEM00 transverse mode changes to a combination of TEM00, TEM*01 (doughnut), and TEM11. Various transverse modes patterns can then be produced by frequency tuning the injection. Interferometrically analyzing these patterns shows that some zero-field points are field vortices. The position of the vortex depends on injection frequency, power, polarization, and input position. The circulation of the phase gradient on any loop that encloses the vortex core is equal to 2kπ, with k (equal to one in our experiment) representing the order of the vortex, or topological charge.

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M3 - Conference contribution

AN - SCOPUS:0027815391

SN - 0780312635

T3 - Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting

SP - 304

EP - 305

BT - Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting

PB - Publ by IEEE

T2 - Annual Meeting of the IEEE Lasers and Electro-Optics Society

Y2 - 15 November 1993 through 18 November 1993

ER -

Spatial patterns in semiconductor lasers

Abstract

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Other

ASJC Scopus subject areas

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