Abstract
GNOSIS has provided the first on-telescope demonstration of a concept to utilize complex aperioidc fiber Bragg gratings to suppress the 103 brightest atmospheric hydroxyl emission doublets between 1.47-1.7 μm. The unit is designed to be used at the 3.9-meter Anglo-Australian Telescope (AAT) feeding the IRIS2 spectrograph. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion. We present the results of laboratory and on-sky tests from instrument commissioning. These tests reveal excellent suppression performance by the gratings and high inter-notch throughput, which combine to produce high fidelity OH-free spectra.
| Language | English |
|---|---|
| Title of host publication | Ground-based and Airborne Instrumentation for Astronomy IV |
| Editors | Ian S. McLean, Suzanne K. Ramsay, Hideki Takami |
| Place of Publication | Bellingham, Washington |
| Publisher | SPIE |
| Pages | 1-9 |
| Number of pages | 9 |
| ISBN (Print) | 9780819491473 |
| DOIs | |
| Publication status | Published - 2012 |
| Event | Ground-Based and Airborne Instrumentation for Astronomy IV - Amsterdam, Netherlands Duration: 1 Jul 2012 → 6 Jul 2012 |
Publication series
| Name | Proceedings of SPIE |
|---|---|
| Publisher | SPIE |
| Volume | 8446 |
| ISSN (Print) | 0277-786X |
Other
| Other | Ground-Based and Airborne Instrumentation for Astronomy IV |
|---|---|
| Country | Netherlands |
| City | Amsterdam |
| Period | 1/07/12 → 6/07/12 |
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Keywords
- Astrophotonics
- Fiber Bragg gratings
- Near-infrared
- OH suppression
- Photonic lantern
Cite this
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GNOSIS : a novel near-infrared OH suppression unit at the AAT. / Trinh, C. Q.; Ellis, S. C.; Lawrence, J. S.; Horton, A. J.; Bland-Hawthorn, J.; Leon-Saval, S. G.; Bryant, J.; Case, S.; Colless, M.; Couch, W.; Freeman, K.; Gers, L.; Glazebrook, K.; Haynes, R.; Lee, S.; Löhmannsröben, H. G.; Miziarski, S.; O'Byrne, J.; Rambold, W.; Roth, M. M.; Schmidt, B.; Shortridge, K.; Smedley, S.; Tinney, C. G.; Xavier, P.; Zheng, J.
Ground-based and Airborne Instrumentation for Astronomy IV. ed. / Ian S. McLean; Suzanne K. Ramsay; Hideki Takami. Bellingham, Washington : SPIE, 2012. p. 1-9 84463J (Proceedings of SPIE; Vol. 8446).Research output: Chapter in Book/Report/Conference proceeding › Conference proceeding contribution › Research › peer-review
TY - GEN
T1 - GNOSIS
T2 - a novel near-infrared OH suppression unit at the AAT
AU - Trinh,C. Q.
AU - Ellis,S. C.
AU - Lawrence,J. S.
AU - Horton,A. J.
AU - Bland-Hawthorn,J.
AU - Leon-Saval,S. G.
AU - Bryant,J.
AU - Case,S.
AU - Colless,M.
AU - Couch,W.
AU - Freeman,K.
AU - Gers,L.
AU - Glazebrook,K.
AU - Haynes,R.
AU - Lee,S.
AU - Löhmannsröben,H. G.
AU - Miziarski,S.
AU - O'Byrne,J.
AU - Rambold,W.
AU - Roth,M. M.
AU - Schmidt,B.
AU - Shortridge,K.
AU - Smedley,S.
AU - Tinney,C. G.
AU - Xavier,P.
AU - Zheng,J.
PY - 2012
Y1 - 2012
N2 - GNOSIS has provided the first on-telescope demonstration of a concept to utilize complex aperioidc fiber Bragg gratings to suppress the 103 brightest atmospheric hydroxyl emission doublets between 1.47-1.7 μm. The unit is designed to be used at the 3.9-meter Anglo-Australian Telescope (AAT) feeding the IRIS2 spectrograph. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion. We present the results of laboratory and on-sky tests from instrument commissioning. These tests reveal excellent suppression performance by the gratings and high inter-notch throughput, which combine to produce high fidelity OH-free spectra.
AB - GNOSIS has provided the first on-telescope demonstration of a concept to utilize complex aperioidc fiber Bragg gratings to suppress the 103 brightest atmospheric hydroxyl emission doublets between 1.47-1.7 μm. The unit is designed to be used at the 3.9-meter Anglo-Australian Telescope (AAT) feeding the IRIS2 spectrograph. Unlike previous atmospheric suppression techniques GNOSIS suppresses the lines before dispersion. We present the results of laboratory and on-sky tests from instrument commissioning. These tests reveal excellent suppression performance by the gratings and high inter-notch throughput, which combine to produce high fidelity OH-free spectra.
KW - Astrophotonics
KW - Fiber Bragg gratings
KW - Near-infrared
KW - OH suppression
KW - Photonic lantern
UR - http://www.scopus.com/inward/record.url?scp=84871949027&partnerID=8YFLogxK
U2 - 10.1117/12.926483
DO - 10.1117/12.926483
M3 - Conference proceeding contribution
SN - 9780819491473
T3 - Proceedings of SPIE
SP - 1
EP - 9
BT - Ground-based and Airborne Instrumentation for Astronomy IV
PB - SPIE
CY - Bellingham, Washington
ER -