Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 |
| Seitenumfang | 1 |
| ISBN (elektronisch) | 9781728104690 |
| Publikationsstatus | Veröffentlicht - 2019 |
| Veranstaltung | The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019 - Munich, Deutschland Dauer: 23 Juni 2019 → 27 Juni 2019 |
Publikationsreihe
| Name | Optics InfoBase Conference Papers |
|---|---|
| Band | Part F140-CLEO_Europe 2019 |
| ISSN (elektronisch) | 2162-2701 |
Abstract
Compact, high-performance optical components are much sought after in modern observational astronomy to bring down the system cost and maintenance complexity. Lightweight, miniature spectrometers are also essential components for instruments used in satellite and space observation. Integrated spectrometers based on planar light wave circuits are attractive as such compact device can provide high spectral resolution and simultaneously also provide great robustness and flexibility in spectrograph system design. Though arrayed waveguide gratings (AWGs) have been demonstrated for such purposes, the application is limited by their working principles: 1) The operation wavelengths are mostly constrained in the near infrared (NIR) region. Since the waveguide dimension scales with the wavelength, shorter wavelength require waveguide structures that proved too challenging to be fabricated accurately and consistently among the many waveguides in the array. 2) The free spectral range (FSR) of the AWG is relatively small as it works mostly at rather high grating orders for fine spectral resolution [1,2]. An integrated Echelle grating (IEG), as sketched in Fig. 1, relies on the optical path differences introduced by the reflective facets arranged on a Roland circle and requires virtually no waveguides [3,4]. The operation wavelength depends on the materials as well as the reflective characteristics of the facets. IEGs mostly work at lower grating orders compared to AWGs, thus, providing higher FSRs.
ASJC Scopus Sachgebiete
- Werkstoffwissenschaften (insg.)
- Elektronische, optische und magnetische Materialien
- Ingenieurwesen (insg.)
- Werkstoffmechanik
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The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019. 2019. ck_9_3 (Optics InfoBase Conference Papers; Band Part F140-CLEO_Europe 2019).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Integrated Echelle Gratings as Compact Spectrometer for VIS and NIR Astronomy
AU - Wang, Yu
AU - Luo, Jiajun
AU - Sun, Kai
AU - Roth, Bernhard
AU - Zhang, Ziyang
PY - 2019
Y1 - 2019
N2 - Compact, high-performance optical components are much sought after in modern observational astronomy to bring down the system cost and maintenance complexity. Lightweight, miniature spectrometers are also essential components for instruments used in satellite and space observation. Integrated spectrometers based on planar light wave circuits are attractive as such compact device can provide high spectral resolution and simultaneously also provide great robustness and flexibility in spectrograph system design. Though arrayed waveguide gratings (AWGs) have been demonstrated for such purposes, the application is limited by their working principles: 1) The operation wavelengths are mostly constrained in the near infrared (NIR) region. Since the waveguide dimension scales with the wavelength, shorter wavelength require waveguide structures that proved too challenging to be fabricated accurately and consistently among the many waveguides in the array. 2) The free spectral range (FSR) of the AWG is relatively small as it works mostly at rather high grating orders for fine spectral resolution [1,2]. An integrated Echelle grating (IEG), as sketched in Fig. 1, relies on the optical path differences introduced by the reflective facets arranged on a Roland circle and requires virtually no waveguides [3,4]. The operation wavelength depends on the materials as well as the reflective characteristics of the facets. IEGs mostly work at lower grating orders compared to AWGs, thus, providing higher FSRs.
AB - Compact, high-performance optical components are much sought after in modern observational astronomy to bring down the system cost and maintenance complexity. Lightweight, miniature spectrometers are also essential components for instruments used in satellite and space observation. Integrated spectrometers based on planar light wave circuits are attractive as such compact device can provide high spectral resolution and simultaneously also provide great robustness and flexibility in spectrograph system design. Though arrayed waveguide gratings (AWGs) have been demonstrated for such purposes, the application is limited by their working principles: 1) The operation wavelengths are mostly constrained in the near infrared (NIR) region. Since the waveguide dimension scales with the wavelength, shorter wavelength require waveguide structures that proved too challenging to be fabricated accurately and consistently among the many waveguides in the array. 2) The free spectral range (FSR) of the AWG is relatively small as it works mostly at rather high grating orders for fine spectral resolution [1,2]. An integrated Echelle grating (IEG), as sketched in Fig. 1, relies on the optical path differences introduced by the reflective facets arranged on a Roland circle and requires virtually no waveguides [3,4]. The operation wavelength depends on the materials as well as the reflective characteristics of the facets. IEGs mostly work at lower grating orders compared to AWGs, thus, providing higher FSRs.
UR - http://www.scopus.com/inward/record.url?scp=85084556418&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85084556418
SN - 9781728104690
T3 - Optics InfoBase Conference Papers
BT - The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
T2 - The European Conference on Lasers and Electro-Optics, CLEO_Europe_2019
Y2 - 23 June 2019 through 27 June 2019
ER -