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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 21 — Oct. 12, 2009
  • pp: 18643–18650

Characterization and on-sky demonstration of an integrated photonic spectrograph for astronomy

N. Cvetojevic, J. S. Lawrence, S. C. Ellis, J. Bland-Hawthorn, R. Haynes, and A. Horton  »View Author Affiliations


Optics Express, Vol. 17, Issue 21, pp. 18643-18650 (2009)
http://dx.doi.org/10.1364/OE.17.018643


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Abstract

We present results from the first on-sky demonstration of a prototype astronomical integrated photonic spectrograph (IPS) using the Anglo-Australian Telescope near-infrared imaging spectrometer (IRIS2) at Siding Spring Observatory to observe atmospheric molecular OH emission lines. We have succeeded in detecting upwards of 27 lines, and demonstrated the practicality of the IPS device for astronomy. Furthermore, we present a laboratory characterization of the device, which is a modified version of a commercial arrayed-waveguide grating multiplexer. We measure the spectral resolution full-width-half-maximum to be 0.75 ± 0.05nm (giving R = λ/δλ = 2100 ± 150 at 1500nm). We find the free spectral range to be 57.4 ± 0.6nm and the peak total efficiency to be ~65%. Finally, we briefly discuss the future steps required to realize an astronomical instrument based on this technology concept.

© 2009 OSA

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(300.6190) Spectroscopy : Spectrometers
(350.1260) Other areas of optics : Astronomical optics

ToC Category:
Integrated Optics

History
Original Manuscript: July 14, 2009
Revised Manuscript: August 27, 2009
Manuscript Accepted: August 28, 2009
Published: October 1, 2009

Citation
N. Cvetojevic, J. S. Lawrence, S. C. Ellis, J. Bland-Hawthorn, R. Haynes, and A. Horton, "Characterization and on-sky demonstration of an integrated photonic spectrograph for astronomy," Opt. Express 17, 18643-18650 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-21-18643


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References

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