Quantum Dot Superluminescent Diodes for Optical Coherence Tomography: Device Engineering

We present a 18 mW fiber-coupled single-mode superluminescent diode with 85 nm bandwidth for application in optical coherence tomography (OCT). First, we describe the effect of quantum dot (QD) growth temperature on optical spectrum and gain, highlighting the need for the optimization of epitaxy for...

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Published in:IEEE journal of selected topics in quantum electronics 2010-07, Vol.16 (4), p.1015-1022
Main Authors: Greenwood, Purnima D L, Childs, David T D, Kennedy, Kenneth, Groom, Kristian M, Hugues, Maxime, Hopkinson, Mark, Hogg, Richard A, Krstajić, Nikola, Smith, L E, Matcher, S J, Bonesi, M, MacNeil, S, Smallwood, R
Format: Article
Language:English
Subjects:
Bandwidth
Broadband
Devices
Epitaxial growth
Noise
Optical Coherence Tomography
Optical coherence tomography (OCT)
Optical devices
Optical fiber devices
Optical materials
Optimization
quantum dot (QD)
Quantum dots
skin imaging
Spectral shape
Superluminescent diodes
superluminescent diodes (SLEDs)
Surgical implants
Temperature
Tomography
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cited_by cdi_FETCH-LOGICAL-c371t-d16712f689cce1de5aad4dfd585101bcc2f67185e1326fd628fc87e12d4f00c43
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container_title IEEE journal of selected topics in quantum electronics
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creator Greenwood, Purnima D L
Childs, David T D
Kennedy, Kenneth
Groom, Kristian M
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Hogg, Richard A
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Smith, L E
Matcher, S J
Bonesi, M
MacNeil, S
Smallwood, R
description We present a 18 mW fiber-coupled single-mode superluminescent diode with 85 nm bandwidth for application in optical coherence tomography (OCT). First, we describe the effect of quantum dot (QD) growth temperature on optical spectrum and gain, highlighting the need for the optimization of epitaxy for broadband applications. Then, by incorporating this improved material into a multicontact device, we show how bandwidth and power can be controlled. We then go on to show how the spectral shape influences the autocorrelation function, which exhibits a coherence length of
doi_str_mv 10.1109/JSTQE.2009.2038720
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subjects Bandwidth
Broadband
Devices
Epitaxial growth
Noise
Optical Coherence Tomography
Optical coherence tomography (OCT)
Optical devices
Optical fiber devices
Optical materials
Optimization
quantum dot (QD)
Quantum dots
skin imaging
Spectral shape
Superluminescent diodes
superluminescent diodes (SLEDs)
Surgical implants
Temperature
Tomography
title Quantum Dot Superluminescent Diodes for Optical Coherence Tomography: Device Engineering
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