Dynamic coherence measurements of index- and gain-guided VCSEL's

S. A. Kemme; R. K. Kostuk; C. K.Y. Chun

doi:10.1109/68.588092

Dynamic coherence measurements of index- and gain-guided VCSEL's

S. A. Kemme, R. K. Kostuk, C. K.Y. Chun

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

8 Scopus citations

Abstract

Coherence properties of several different types of VCSEL's are examined with constant and modulated injection current with a bandwidth typical of that used in telecommunications. Large signal modulation of index-guided single transverse-mode VCSEL's is found to reduce the coherence length by more than a factor of ten relative to the direct current configuration. Multiple transverse-mode index-guided VCSEL's have similar coherence lengths when operated dc and modulated, and shorter than that of the single transverse-mode VCSEL's. Gain-guided multiple transverse-mode VCSEL's also have shorter coherence lengths than single transverse-mode VCSEL's and under modulation can have coherence lengths as low as 0.5 cm.

Original language	English (US)
Pages (from-to)	554-556
Number of pages	3
Journal	IEEE Photonics Technology Letters
Volume	9
Issue number	5
DOIs	https://doi.org/10.1109/68.588092
State	Published - May 1997

Keywords

Coherence length
Modal noise
Multiple transverse mode VCSEL's
Optical interconnections
Optical spectra
Vertical-cavity surface-emitting lasers (VCSEL's)

ASJC Scopus subject areas

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

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10.1109/68.588092

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title = "Dynamic coherence measurements of index- and gain-guided VCSEL's",

abstract = "Coherence properties of several different types of VCSEL's are examined with constant and modulated injection current with a bandwidth typical of that used in telecommunications. Large signal modulation of index-guided single transverse-mode VCSEL's is found to reduce the coherence length by more than a factor of ten relative to the direct current configuration. Multiple transverse-mode index-guided VCSEL's have similar coherence lengths when operated dc and modulated, and shorter than that of the single transverse-mode VCSEL's. Gain-guided multiple transverse-mode VCSEL's also have shorter coherence lengths than single transverse-mode VCSEL's and under modulation can have coherence lengths as low as 0.5 cm.",

keywords = "Coherence length, Modal noise, Multiple transverse mode VCSEL's, Optical interconnections, Optical spectra, Vertical-cavity surface-emitting lasers (VCSEL's)",

author = "Kemme, {S. A.} and Kostuk, {R. K.} and Chun, {C. K.Y.}",

note = "Funding Information: Manuscript received September 23, 1996; revised January 8, 1997. This work was supported by Motorola, Inc., Semiconductor Research Corporation, and the National Science Foundation. S. A. Kemme and R. K. Kostuk are with the Optical Sciences Center, University of Arizona, Tucson, AZ 85721 USA. C. K. Y. Chun is with the Photonics Technology Center, Phoenix Corporate Research Laboratories, Motorola, Inc., Tempe, A2 85284 USA. Publisher Item Identifier S 1041-11 35(97)03250-3.",

year = "1997",

month = may,

doi = "10.1109/68.588092",

language = "English (US)",

volume = "9",

pages = "554--556",

journal = "IEEE Photonics Technology Letters",

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publisher = "Institute of Electrical and Electronics Engineers Inc.",

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T1 - Dynamic coherence measurements of index- and gain-guided VCSEL's

AU - Kemme, S. A.

AU - Kostuk, R. K.

AU - Chun, C. K.Y.

N1 - Funding Information: Manuscript received September 23, 1996; revised January 8, 1997. This work was supported by Motorola, Inc., Semiconductor Research Corporation, and the National Science Foundation. S. A. Kemme and R. K. Kostuk are with the Optical Sciences Center, University of Arizona, Tucson, AZ 85721 USA. C. K. Y. Chun is with the Photonics Technology Center, Phoenix Corporate Research Laboratories, Motorola, Inc., Tempe, A2 85284 USA. Publisher Item Identifier S 1041-11 35(97)03250-3.

PY - 1997/5

Y1 - 1997/5

N2 - Coherence properties of several different types of VCSEL's are examined with constant and modulated injection current with a bandwidth typical of that used in telecommunications. Large signal modulation of index-guided single transverse-mode VCSEL's is found to reduce the coherence length by more than a factor of ten relative to the direct current configuration. Multiple transverse-mode index-guided VCSEL's have similar coherence lengths when operated dc and modulated, and shorter than that of the single transverse-mode VCSEL's. Gain-guided multiple transverse-mode VCSEL's also have shorter coherence lengths than single transverse-mode VCSEL's and under modulation can have coherence lengths as low as 0.5 cm.

AB - Coherence properties of several different types of VCSEL's are examined with constant and modulated injection current with a bandwidth typical of that used in telecommunications. Large signal modulation of index-guided single transverse-mode VCSEL's is found to reduce the coherence length by more than a factor of ten relative to the direct current configuration. Multiple transverse-mode index-guided VCSEL's have similar coherence lengths when operated dc and modulated, and shorter than that of the single transverse-mode VCSEL's. Gain-guided multiple transverse-mode VCSEL's also have shorter coherence lengths than single transverse-mode VCSEL's and under modulation can have coherence lengths as low as 0.5 cm.

KW - Coherence length

KW - Modal noise

KW - Multiple transverse mode VCSEL's

KW - Optical interconnections

KW - Optical spectra

KW - Vertical-cavity surface-emitting lasers (VCSEL's)

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JO - IEEE Photonics Technology Letters

JF - IEEE Photonics Technology Letters

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Dynamic coherence measurements of index- and gain-guided VCSEL's

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Keywords

ASJC Scopus subject areas

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