Arrayed Waveguide Grating based photonic spectrograph for the astronomical J band

被引：0

作者：

Gopinath, V. ^{[1
,2
]}

Pfuhl, O. ^{[1
]}

Lewis, S. ^{[1
]}

Leveque, S. ^{[1
]}

Hubin, N. ^{[1
]}

Eisenhauer, F. ^{[2
]}

Bourdarot, G. ^{[2
]}

机构：

[1] ESO, Karl Schwarzschild Str 2, D-85748 Garching, Germany

[2] Max Planck Inst Extraterr Phys MPE, Giessenbachstr 1, D-85748 Garching, Germany

来源：

GROUND-BASED AND AIRBORNE INSTRUMENTATION FOR ASTRONOMY X | 2024年 / 13096卷

关键词：

AWG; Arrayed waveguide grating; Photonic Spectrograph; J band;

D O I：

10.1117/12.3016180

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

The tremendous costs and complexity of instruments for the next generation of telescopes (ELT, GMT, TMT) has led to increasing research into photonic devices as cheaper and compact alternatives to bulk optic components. The widespread availability of adaptive optics and diffractionlimited image quality of telescopes in the infrared enables the use of single-mode photonic devices. A possible single-mode counterpart to conventional, bulk optic spectrographs are photonic spectrographs, based e.g. on arrayed waveguide gratings (AWG). AWGs are widely used in the telecommunication industries for wavelength multiplexing and demultiplexing. As a result, commercial AWGs are typically operated around the 1550 nm communication window and their potential application as an astrophotonic spectrograph has been studied mainly in the astronomical H band (1500-1700 nm). In order to extend the wavelength range, we developed an AWG for the astronomical J band (center wavelength 1250 nm). The device was ordered for fabrication and was characterized using a test bench built in-house. The AWG chip is found to exhibit spectral resolutions close to the design resolution (R similar to 12500) over a large wavelength range from at least 1150 nm to 1500 nm, with an intrinsic peak transmission close to 80% at the center wavelength. Our results demonstrate the potential to use AWG's in astronomical spectrographs in future instruments.

引用

页数：11

共 10 条

[1] First light for GRAVITY: Phase referencing optical interferometry for the Very Large Telescope Interferometer [J].

Abuter, R. ;

Accardo, M. ;

Amorim, A. ;

Anugu, N. ;

Avila, G. ;

Azouaoui, N. ;

Benisty, M. ;

Berger, J. P. ;

Blind, N. ;

Bonnet, H. ;

Bourget, P. ;

Brandner, W. ;

Brast, R. ;

Buron, A. ;

Burtscher, L. ;

Cassaing, F. ;

Chapron, F. ;

Choquet, E. ;

Clenet, Y. ;

Collin, C. ;

du Foresto, V. Coude ;

de Wit, W. ;

de Zeeuw, P. T. ;

Deen, C. ;

Delplancke-Stroebele, F. ;

Dembet, R. ;

Derie, F. ;

Dexter, J. ;

Duvert, G. ;

Ebert, M. ;

Eckart, A. ;

Eisenhauer, F. ;

Esselborn, M. ;

Fedou, P. ;

Finger, G. ;

Garcia, P. ;

Dabo, C. E. Garcia ;

Lopez, R. Garcia ;

Gendron, E. ;

Genzel, R. ;

Gillessen, S. ;

Gonte, F. ;

Gordo, P. ;

Grould, M. ;

Groezinger, U. ;

Guieu, S. ;

Haguenauer, P. ;

Hans, O. ;

Haubois, X. ;

Haug, M. .

ASTRONOMY & ASTROPHYSICS, 2017, 602

[2]

Bland-Hawthorn J., 2006, GROUND BASED AIRBORN, V6269, P224

[3] First starlight spectrum captured using an integrated photonic micro-spectrograph [J].

Cvetojevic, N. ;

Jovanovic, N. ;

Betters, C. ;

Lawrence, J. S. ;

Ellis, S. C. ;

Robertson, G. ;

Bland-Hawthorn, J. .

ASTRONOMY & ASTROPHYSICS, 2012, 544

[4]

du Foresto VC, 1998, P SOC PHOTO-OPT INS, V3350, P856

[5]

Gatkine P., 2022, ADV OPTICAL MECH T 5, V12188, P856

[6]

Kramida A., 2023, NIST Atomic Spectra Database (ver. 5.11)

[7] PIONIER: a 4-telescope visitor instrument at VLTI [J].

Le Bouquin, J. -B. ;

Berger, J. -P. ;

Lazareff, B. ;

Zins, G. ;

Haguenauer, P. ;

Jocou, L. ;

Kern, P. ;

Millan-Gabet, R. ;

Traub, W. ;

Absil, O. ;

Augereau, J. -C. ;

Benisty, M. ;

Blind, N. ;

Bonfils, X. ;

Bourget, P. ;

Delboulbe, A. ;

Feautrier, P. ;

Germain, M. ;

Gitton, P. ;

Gillier, D. ;

Kiekebusch, M. ;

Kluska, J. ;

Knudstrup, J. ;

Labeye, P. ;

Lizon, J. -L. ;

Monin, J. -L. ;

Magnard, Y. ;

Malbet, F. ;

Maurel, D. ;

Menard, F. ;

Micallef, M. ;

Michaud, L. ;

Montagnier, G. ;

Morel, S. ;

Moulin, T. ;

Perraut, K. ;

Popovic, D. ;

Rabou, P. ;

Rochat, S. ;

Rojas, C. ;

Roussel, F. ;

Roux, A. ;

Stadler, E. ;

Stefl, S. ;

Tatulli, E. ;

Ventura, N. .

ASTRONOMY & ASTROPHYSICS, 2011, 535

[8] NEW FOCUSING AND DISPERSIVE PLANAR COMPONENT BASED ON AN OPTICAL PHASED-ARRAY [J].

SMIT, MK .

ELECTRONICS LETTERS, 1988, 24 (07) :385-386

[9] COUPLING LIGHT FROM INCOHERENT SOURCES TO OPTICAL WAVE-GUIDES [J].

STOKES, LF .

IEEE CIRCUITS AND DEVICES MAGAZINE, 1994, 10 (01) :46-47

[10] Design, simulation and characterization of integrated photonic spectrographs for astronomy: generation-I AWG devices based on canonical layouts [J].

Stoll, Andreas ;

Madhav, Kalaga, V ;

Roth, Martin M. .

OPTICS EXPRESS, 2021, 29 (16) :24947-24971

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