3D-integrated optics component for astronomical spectro-interferometry

Saviauk, Allar; Minardi, Stefano; Dreisow, Felix; Nolte, Stefan; Pertsch, Thomas

doi:10.1364/ao.52.004556

Cited by 34 publications

(28 citation statements)

References 27 publications

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“…However, dispersion of the output in order to recover spectral information is challenging because of the 2D arrangement of waveguides instead of a linear array [135]. Furthermore, the beam combiner is sensitive to non-uniform and polarisation-dependent coupling in the array [135].…”

Section: Beam Combiningmentioning

confidence: 99%

Ultrafast-laser-inscribed 3D integrated photonics: challenges and emerging applications

2015

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Since the discovery that tightly focused femtosecond laser pulses can induce a highly localised and permanent refractive index modification in a large number of transparent dielectrics, the technique of ultrafast laser inscription has received great attention from a wide range of applications. In particular, the capability to create three-dimensional optical waveguide circuits has opened up new opportunities for integrated photonics that would not have been possible with traditional planar fabrication techniques because it enables full access to the many degrees of freedom in a photon. This paper reviews the basic techniques and technological challenges of 3D integrated photonics fabricated using ultrafast laser inscription as well as reviews the most recent progress in the fields of astrophotonics, optical communication, quantum photonics, emulation of quantum systems, optofluidics and sensing.

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Section: Beam Combiningmentioning

confidence: 99%

Ultrafast-laser-inscribed 3D integrated photonics: challenges and emerging applications

2015

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“…Complex Visibility: The quantitative interpretation of the fringe patterns that are observed by interferometer can be made, and this is called visibility [5]. The visibility for the two-slit interferometer is given below: V = fringe amplitude/average intensity (1) The visibility is exactly proportional to the fringe amplitude and average intensity given by (1). Phase of the fringe pattern is equal to the Fourier phase of the same spatial frequency component.…”

Section: B Principles Of Optical 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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“…6 DBC have been tested in the lab both in matricial 38 and temporal scanning mode. 39 An interesting feature of MMI and DBC devices is that these devices can be designed to be intrinsically short and without waveguide bends, thus limiting the losses of the component to a bare minimum. A main drawback of these approaches is the strong chromatic response of the devices.…”

Section: Integrated Optics Beam Combinersmentioning

confidence: 99%

Beam combination schemes and technologies for the Planet Formation Imager

Minardi¹,

Diener²,

Nayak³

et al. 2018

Optical and Infrared Interferometry and Imaging VI

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The Planet Formation Imager initiative aims at developing the next generation large scale facility for imaging astronomical optical interferometry operating in the mid-infrared. Here we report on the progress of the Planet Formation Imager Technical Working Group on the beam-combination instruments. We will discuss various available options for the science and fringe-tracker beam combination instruments, ranging from direct imaging, to non-redundant fiber arrays, to integrated optics solutions. Besides considering basic characteristics of the schemes, we will investigate the maturity of the available technological platforms at near-and mid-infrared wavelengths.

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3D-integrated optics component for astronomical spectro-interferometry

Cited by 34 publications

References 27 publications

Ultrafast-laser-inscribed 3D integrated photonics: challenges and emerging applications

Ultrafast-laser-inscribed 3D integrated photonics: challenges and emerging applications

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

Beam combination schemes and technologies for the Planet Formation Imager

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