Flexible Curled Optical Cord for Bending-Insensitive Optical Imaging Delivery

Park, Jae Seok; Jeong, Myung Yung; Jung, Chan Sik; Ouh, Chi-Hwan; Kang, Hee-Jeon; Han, Young‐Geun; Lee, Sang Bae; Kim, Chang-Seok

doi:10.1109/jstqe.2009.2033211

Cited by 4 publications

(3 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These interferometers were based on a Fizeau scheme in which a common path was shared between the reference and sample arms [17][18][19][20]. This scheme shows a highly polarizationstabilized interferogram because the signal reflected from the sample and that from the partial reflector each propagate back through a common optical path [21]. Interference signals from the point-beam and line-beam common-path interferometers were received by an adjustable gain photodetector (2053-FC, New Focus, USA) and a line-scan CCD camera (SU-LDH-1.7, Goodrich Co., USA), respectively.…”

Section: Setup For the Ofdi Systemmentioning

confidence: 99%

Three-dimensional surface phase imaging based on integrated thermo-optic swept laser

Kim

Cho

Noh³

et al. 2014

Meas. Sci. Technol.

View full text Add to dashboard Cite

We developed an optical frequency domain imaging (OFDI) system based on an integrated thermo-optic swept laser to achieve three-dimensional surface imaging. The wavelength was swept by applying a heating signal to a thermo-optic polymeric waveguide. The sub-micrometer surface profile was converted from the three-dimensional phase information of the OFDI system on various samples used as resolution targets with a step height of 120 nm.

show abstract

Section: Setup For the Ofdi Systemmentioning

confidence: 99%

Three-dimensional surface phase imaging based on integrated thermo-optic swept laser

Kim

Cho

Noh³

et al. 2014

Meas. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…A flexible optical probe is one of the key components of the OCT system, delivering the reflected optical signal from the sample to the imaging system at a remote location. We have suggested a curled optical cord based on a holey fiber to be used as a bending-insensitive arbitrary-length optical imaging probe for a common-path OCT system [3]. However, there has been a critical problem with this common-path OCT configuration in that the partial reflector needs to be placed in between the sample and the objective lens [4–7].…”

Section: Introductionmentioning

confidence: 99%

“…Because the MZI is not suitable for the flexible optical probe of OCT, a common-path interferometer has been developed to overcome the polarization mismatch between the reference mirror arm and sample arm of the curled optical cord [3]. Since there is only one path in the common-path interferometer, as shown in Fig.…”

Section: Introductionmentioning

confidence: 99%

Double common-path interferometer for flexible optical probe of optical coherence tomography

Park¹,

Chen²,

Jeong³

et al. 2012

Opt. Express

View full text Add to dashboard Cite

A flexible curled optical cord is useful for a common-path optical coherence tomography (OCT) system because a bending-insensitive arbitrary length can be chosen for the endoscopic imaging probe. However, there has been a critical problem that the partial reflector needs to be placed in between the sample and the objective lens. It limits the structure design of optical probe and leads to a low transverse resolution OCT imaging. Instead of a conventional single common-path interferometer, we propose a novel double common-path interferometer configuration in order to generate an interference signal that is independent of the optical distance between the partial reflector and sample. Due to the limitless tuning of the objective distance, an objective lens with a high numerical aperture (NA) up to 0.85 can be successfully used for phase-sensitive optical coherence tomography to achieve a 3-dimensional profile image of a transverse resolution of 0.7 μm. The intensity and phase terms of the interference signal can be obtained simultaneously from a Fourier-domain mode locked swept laser source for fast data acquisition with a phase stability of 979 pm.

show abstract

Catheters for optical coherence tomography

2011

View full text Add to dashboard Cite

The objective of this review article is to overview technology, clinical evidence, and future applications to date optical coherence tomography (OCT) probes to yield the diagnostic purpose. We have reviewed the designing, construction and working of different categories of OCT probes developed for optical diagnostics having a potential for non invasive and improved detection of different types of cancer as well as other neoplasm. Rotational and balloon catheters, imaging needles and hand-held, linear scanning, multichannel, micro electro mechanical systems (MEMS) technology based, dynamic focusing, forward view imaging, and common path interferometer based probes have been discussed in details. The fiber probes have shown excellent performance for two dimensional and three dimensional higher resolution, cross-sectional imaging of interior and exterior body tissues that can be compared with histopathology to provide the information about the angiogenesis and other lesions in the tissue. The MEMS-technology based probes are found to be more suitable for three dimensional morphological imaging.Assembled micro electro mechanical systems (MEMS) probe

show abstract

Flexible Curled Optical Cord for Bending-Insensitive Optical Imaging Delivery

Cited by 4 publications

References 20 publications

Three-dimensional surface phase imaging based on integrated thermo-optic swept laser

Three-dimensional surface phase imaging based on integrated thermo-optic swept laser

Double common-path interferometer for flexible optical probe of optical coherence tomography

Catheters for optical coherence tomography

Contact Info

Product

Resources

About