Optical design of a high-resolution spectrometer with a wide field of view

Zeng, Chaobin; Yan, Han; Liu, Bin; Sun, Peng; Li, XianJing; Chen, Ping

doi:10.1016/j.optlaseng.2021.106547

Cited by 17 publications

(5 citation statements)

References 32 publications

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“…Moving on and looking upon the free-space based WSS as a device that resembles a spectrometer, the optical instrumentation can be accurately described by using the ray tracing method [15][16][17][18]. Considering a ray propagating along the yz plane (or xz plane) with the optical axis being on the z direction, the output ray is related to the input ray according to the ray transfer matrix analysis [19].…”

Section: Principle and Designmentioning

confidence: 99%

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Patsamanis,

Ketzaki,

Chatzitheocharis

et al. 2024

Preprint

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Wavelength selective switches (WSSs) are essential elements for wavelength division multiplexing (WDM) optical networks, as they offer cost-effective, high port-count and flexible spectral channel switching. This work proposes a new hybrid WSS architecture that leverages the beam shaping and steering features of uniform silicon nitride (SiN) based end-fire optical phased arrays (OPAs). By introducing beamforming to a WSS system, the spectral channels on the liquid crystal on silicon (LCoS) panel can be tailored and arranged properly, depending on the optical configuration, using the beam control capabilities of OPAs. Combining 3D-FDTD and ray tracing simulations, the study shows that by reducing the input beam dimensions with proper sizing of the OPAs, the WSS design with the null-steering OPAs layout and 4×No switch size features increased spectral resolution. This extensive beamforming study on the steering-enabled layout reveals the acquirement of an even higher input channel number, achieving up to the 8×No WSS scheme with flexible channel routing on the LCoS panel. Such implementation of beamsteerers can unlock an extra degree of freedom for the switching capabilities of hybrid WSS devices. The results show great promise for the introduction of OPAs in WSS systems and provide valuable insight for the design of future wireless communication links and WDM systems.

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Section: Principle and Designmentioning

confidence: 99%

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Patsamanis,

Ketzaki,

Chatzitheocharis

et al. 2024

Preprint

View full text Add to dashboard Cite

show abstract

“…Moving on and looking upon the free-space based WSS as a device that resembles a spectrometer, the optical instrumentation can be accurately described by using the ray tracing method [19][20][21][22]. Considering a ray propagating along the yz plane (or xz plane) with the optical axis being on the z direction, the output ray is related to the input ray according to the ray transfer matrix analysis [23].…”

Section: Principle and Designmentioning

confidence: 99%

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Patsamanis,

Ketzaki,

Chatzitheocharis

et al. 2024

Photonics

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Wavelength selective switches (WSSs) are essential elements for wavelength division multiplexing (WDM) optical networks, as they offer cost-effective, high port-count and flexible spectral channel switching. This work proposes a new hybrid WSS architecture that leverages the beam shaping and steering features of uniform silicon nitride-based end-fire optical phased arrays (OPAs). By introducing beamforming to a WSS system, the spectral channels on the liquid crystal on silicon (LCoS) panel can be tailored and arranged properly, depending on the optical configuration, using the beam control capabilities of OPAs. Combining 3D-FDTD and ray tracing simulations, the study shows that, by reducing the input beam dimensions with proper sizing of the OPAs, the WSS design with a null-steering OPA layout and 4 × No switch size features increased spectral resolution. This extensive beamforming study on the steering-enabled layout reveals the acquirement of an even higher input channel number, matching the 8 × No WSS scheme, with flexible channel routing on the LCoS panel. Such implementation of beamsteerers can unlock an extra degree of freedom for the switching capabilities of hybrid WSS devices. The results show great promise for the introduction of OPAs in WSS systems and provide valuable insight for the design of future wireless communication links and WDM systems.

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“…By detecting the spectral characteristics of SO 2 and the unknown UV absorber substance and employing spectral data inversion processing, the concentrations and distribution characteristics of these substances, as well as the identification of the components of the unknown UV absorber substance, can be obtained. This facilitates research on the habitability of the Venusian atmosphere and atmospheric radiative balance [27][28][29]. Atmospheric remote sensing detection technology utilizes remote sensing instruments to collect the spectral information of target objects.…”

Section: Introductionmentioning

confidence: 99%

“…By detecting the spectral characteristics of SO2 and the unknown UV absorber substance and employing spectral data inversion processing, the concentrations and distribution characteristics of these substances, as well as the identification of the components of the unknown UV absorber substance, can be obtained. This facilitates research on the habitability of the Venusian atmosphere and atmospheric radiative balance [27][28][29]. In order to simultaneously acquire ultra-fine spectral data for both SO 2 and the unknown UV absorber substance, the ultraviolet imaging spectrometer should possess characteristics such as ultra-high spectral resolution, simultaneous detection of multiple substances, and system miniaturization.…”

Section: Introductionmentioning

confidence: 99%

Multi-Channel Hyperspectral Imaging Spectrometer Design for Ultraviolet Detection in the Atmosphere of Venus

Zhang,

Fang,

et al. 2024

Remote Sensing

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The spectroscopic detection of SO2 and unknown UV absorber substance in the H2SO4 cloud layer of Venus’ atmosphere is currently a focal point in the study of the habitability of Venusian atmospheric clouds. This paper addresses the simultaneous detection requirements of multiple substances in the ultraviolet range of Venus’ atmosphere and proposes a multi-channel hyperspectral imaging system design using pupil separation prisms and grating multilevel spectra. The system achieves a multi-channel design by splitting the entrance pupil of the telescope using prisms. Spectra from different channels are diffracted to the same detector through different orders of the grating. The system features a single spectrometer and detector, enabling simultaneous detection of spectra from different channels. It also boasts advantages such as compact size, ultra-high spectral resolution, and simultaneous multi-channel detection. The system design results indicate that within the working spectral range of three channels, the spectral resolution is better than 0.15 nm, surpassing previous in-orbit or current in-orbit planetary atmospheric detection spectrometers. With a Nyquist frequency of 56 lp/mm, the full-field MTF exceeds 0.7. The system’s smile is less than 0.05 μm, and the keystone is less than 0.04 μm, meeting the requirements for imaging quality.

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Optical design of a high-resolution spectrometer with a wide field of view

Cited by 17 publications

References 32 publications

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Optical Design of a Wavelength Selective Switch Utilizing a Waveguide Frontend with Beamsteering Capability

Multi-Channel Hyperspectral Imaging Spectrometer Design for Ultraviolet Detection in the Atmosphere of Venus

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