Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems

B.I. Akça, B. Povazay, Lantian Chang, A. Alex, Kerstin Worhoff, R.M. de Ridder, W. Drexler, Markus Pollnau

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

Abstract

Optical coherence tomography (OCT) has enabled clinical applications that revolutionized in vivo medical diagnostics. Nevertheless, its current limitations owing to cost, size, complexity, and the need for accurate alignment must be overcome by radically novel approaches. Exploiting integrated optics, the central components of a spectral-domain OCT (SD-OCT) system can be integrated on a chip. Arrayed-waveguide grating (AWG) spectrometers with their high spectral resolution and compactness are excellent candidates for on-chip SD-OCT systems. However, specific design-related issues of AWG spectrometers limit the performance of on-chip SD-OCT systems. Here we present advanced AWG designs which could overcome the limitations arising from free spectral range, polarization dependency, and curved focal plane of the AWG spectrometers. Using these advanced AWG designs in an SD-OCT system can provide not only better overall performance but also some unique aspects that a commercial system does not have. Additionally, a partially integrated OCT system comprising an AWG spectrometer and an integrated beam splitter, as well as the in vivo imaging using this system are demonstrated.
Original languageUndefined
Title of host publicationOptical Coherence Tomography and Coherence Techniques VI
Place of PublicationBellingham, WA
PublisherSPIE
Pages1-6
Number of pages6
ISBN (Print)not assigned
DOIs
Publication statusPublished - Jun 2013

Publication series

NameProceedings of the SPIE
PublisherSPIE
Number880202
Volume8802
ISSN (Print)0277-786X

Keywords

  • IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY
  • EWI-23490
  • flat focal field
  • METIS-297720
  • IR-86518
  • Arrayed waveguide gratings
  • Integrated Optics
  • Optical Coherence Tomography

Cite this

Akça, B. I., Povazay, B., Chang, L., Alex, A., Worhoff, K., de Ridder, R. M., ... Pollnau, M. (2013). Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems. In Optical Coherence Tomography and Coherence Techniques VI (pp. 1-6). (Proceedings of the SPIE; Vol. 8802, No. 880202). Bellingham, WA: SPIE. https://doi.org/10.1117/12.2032504
Akça, B.I. ; Povazay, B. ; Chang, Lantian ; Alex, A. ; Worhoff, Kerstin ; de Ridder, R.M. ; Drexler, W. ; Pollnau, Markus. / Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems. Optical Coherence Tomography and Coherence Techniques VI. Bellingham, WA : SPIE, 2013. pp. 1-6 (Proceedings of the SPIE; 880202).
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abstract = "Optical coherence tomography (OCT) has enabled clinical applications that revolutionized in vivo medical diagnostics. Nevertheless, its current limitations owing to cost, size, complexity, and the need for accurate alignment must be overcome by radically novel approaches. Exploiting integrated optics, the central components of a spectral-domain OCT (SD-OCT) system can be integrated on a chip. Arrayed-waveguide grating (AWG) spectrometers with their high spectral resolution and compactness are excellent candidates for on-chip SD-OCT systems. However, specific design-related issues of AWG spectrometers limit the performance of on-chip SD-OCT systems. Here we present advanced AWG designs which could overcome the limitations arising from free spectral range, polarization dependency, and curved focal plane of the AWG spectrometers. Using these advanced AWG designs in an SD-OCT system can provide not only better overall performance but also some unique aspects that a commercial system does not have. Additionally, a partially integrated OCT system comprising an AWG spectrometer and an integrated beam splitter, as well as the in vivo imaging using this system are demonstrated.",
keywords = "IOMS-PIT: PHOTONICS INTEGRATION TECHNOLOGY, EWI-23490, flat focal field, METIS-297720, IR-86518, Arrayed waveguide gratings, Integrated Optics, Optical Coherence Tomography",
author = "B.I. Ak{\cc}a and B. Povazay and Lantian Chang and A. Alex and Kerstin Worhoff and {de Ridder}, R.M. and W. Drexler and Markus Pollnau",
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Akça, BI, Povazay, B, Chang, L, Alex, A, Worhoff, K, de Ridder, RM, Drexler, W & Pollnau, M 2013, Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems. in Optical Coherence Tomography and Coherence Techniques VI. Proceedings of the SPIE, no. 880202, vol. 8802, SPIE, Bellingham, WA, pp. 1-6. https://doi.org/10.1117/12.2032504

Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems. / Akça, B.I.; Povazay, B.; Chang, Lantian; Alex, A.; Worhoff, Kerstin; de Ridder, R.M.; Drexler, W.; Pollnau, Markus.

Optical Coherence Tomography and Coherence Techniques VI. Bellingham, WA : SPIE, 2013. p. 1-6 (Proceedings of the SPIE; Vol. 8802, No. 880202).

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademic

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AB - Optical coherence tomography (OCT) has enabled clinical applications that revolutionized in vivo medical diagnostics. Nevertheless, its current limitations owing to cost, size, complexity, and the need for accurate alignment must be overcome by radically novel approaches. Exploiting integrated optics, the central components of a spectral-domain OCT (SD-OCT) system can be integrated on a chip. Arrayed-waveguide grating (AWG) spectrometers with their high spectral resolution and compactness are excellent candidates for on-chip SD-OCT systems. However, specific design-related issues of AWG spectrometers limit the performance of on-chip SD-OCT systems. Here we present advanced AWG designs which could overcome the limitations arising from free spectral range, polarization dependency, and curved focal plane of the AWG spectrometers. Using these advanced AWG designs in an SD-OCT system can provide not only better overall performance but also some unique aspects that a commercial system does not have. Additionally, a partially integrated OCT system comprising an AWG spectrometer and an integrated beam splitter, as well as the in vivo imaging using this system are demonstrated.

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BT - Optical Coherence Tomography and Coherence Techniques VI

PB - SPIE

CY - Bellingham, WA

ER -

Akça BI, Povazay B, Chang L, Alex A, Worhoff K, de Ridder RM et al. Advanced integrated spectrometer designs for miniaturized optical coherence tomography systems. In Optical Coherence Tomography and Coherence Techniques VI. Bellingham, WA: SPIE. 2013. p. 1-6. (Proceedings of the SPIE; 880202). https://doi.org/10.1117/12.2032504