Direct UV-Written Integrated Optical Beam Combiner for Stellar Interferometry

Olivero, Massimo; Svalgaard, Mikael; Jocou, L.; Berger, J. P.

doi:10.1109/jlt.2006.886669

Cited by 5 publications

(3 citation statements)

References 18 publications

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“…The recent boom of ideas and concepts in integrated optics for astronomy described in the previous paragraphs is a strong driver for rapid and cheap prototyping of integrated optics components. A UV-written silica-on-silicon two telescopes beam combiner for the H-band was reported [18]. In the present paper we report the first qualification for astronomy of a polymeric device, namely a hybrid sol-gel three telescopes beam combiner for the J-band (1.1-1.4 μm).…”

Section: Introductionmentioning

confidence: 74%

Hybrid sol-gel planar optics for astronomy

Ghasempour¹,

Leite²,

Reynaud³

et al. 2009

Opt. Express

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Hybrid sol-gel planar optics devices for astronomy are produced for the first time. This material system can operate from the visible (0.5 microm) up to the edge of astronomical J-band (1.4 microm). The design, fabrication and characterization results of a coaxial three beam combiner are given as an example. Fringe contrasts above 94% are obtained with a source with spectral bandwidth of 50 nm. These results demonstrate that hybrid sol-gel technology can produce devices with high quality, opening the possibility of rapid prototyping of new designs and concepts for astronomical applications.

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Section: Introductionmentioning

confidence: 74%

Hybrid sol-gel planar optics for astronomy

Ghasempour¹,

Leite²,

Reynaud³

et al. 2009

Opt. Express

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show abstract

“…These types of objects cannot be seen because of excessively small size and the diffraction of light that occurs in the path of light waves traveling across space. For solving this problem, an instrument was developed under stellar interferometry by Michelson and named as Michelson Interferometer which functions by combining lights to produce interferences which can be used to study the information of those far away objects [9].…”

Section: G Stellar Interferometrymentioning

confidence: 99%

Simulation and Analysis of Telescopic Photonic Beam Combiner for Stellar Interferometry in Labview

2019

IJITEE

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The optical methods are the sensitive and subtle techniques of conducting optical investigations without any physical contact. They are both accurate and fast at the same time which provides an ease of having multiple observations. The need of optical interferometry has been increased at a very quick pace due to its high range of applications, from surface testing to locating of extra-solar planets in the universe. Optical Interferometry is a process or technique of combining light from various telescopes for calculating the angular resolution. The technique of optical interferometry helps astronomers for achieving a high angular resolution, that is not possible with the conventional telescopes. Optical approaches are the best approaches for non-contact evaluations, and these are accurate and fast. Due to optical nature of the interferometry, this process is used in various fields, and today it has become one of the important areas of research. Integrated Optics (IO) beam combiners are an efficient and compact technology to combine light interferometrically collected by multiple telescopes. IO beam combiner is based on the modal filtering properties of waveguides or fibers, and it improves thermo-mechanical stability, because of the characteristic rigidity of IO component substrate. Other advantages of this technology are miniaturization and non-existence of alignment needs. Several IO beam combiners are being proposed and tested nowadays. The purpose of this paper is to investigate different techniques used to develop interferometric instrument from previous researches and to simulate the technique suggested by Ermann in Labview.

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“…As the devices grow in complexity fast technologies where new concepts can be prototyped and tested are increasingly important. A first experiment using UV laser writing at astronomical H band (1.6 m) for a co-axial two beam combiner is reported by [18].…”

Section: Introductionmentioning

confidence: 99%

Rapid prototyping of integrated sol-gel devices for astronomical interferometry

et al. 2008

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Integrated optics is a mature technology with standard applications to telecommunications. Since the pioneering work of Berger et al. 1999 beam combiners for optical interferometry have been built using this technology. Classical integrated optics device production is very expensive and time consuming. The rapid production of devices using hybrid sol-gel materials in conjunction with UV laser direct writing techniques allows overcoming these limitations. In this paper this technology is tested for astronomical applications. We report on the design, fabrication and characterization of multiaxial two beam combiners and a coaxial beam combiner for astronomical interferometry. Different multiaxial two beam combiner designs were tested and high contrast (better than 90%) was obtained with a 1.3 m laser diode and with an SLD ( 0 = 1.26 m, FWHM of 60 nm). High contrast fringes were produced with 1.3 m laser diode using the coaxial two beam combiner. These results show that hybrid sol-gel techniques produce devices with high quality, allowing the rapid prototyping of new designs and concepts for astronomy.

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Direct UV-Written Integrated Optical Beam Combiner for Stellar Interferometry

Cited by 5 publications

References 18 publications

Hybrid sol-gel planar optics for astronomy

Hybrid sol-gel planar optics for astronomy

Simulation and Analysis of Telescopic Photonic Beam Combiner for Stellar Interferometry in Labview

Rapid prototyping of integrated sol-gel devices for astronomical interferometry

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