Guided-wave photonic bandgap filters for space applications

Armenise, Mario Nicola; Ciminelli, Caterina; Leonardis, Francesco De; Diana, Roberto; Passaro, Vittorio M. N.; Peluso, F.

doi:10.1117/12.486003

Cited by 3 publications

(7 citation statements)

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“…LIAs, which are driven by the same signals driving the two phase modulators, have an output that is a DC voltage level proportional to the amplitude of the harmonic component at frequencies f 1,2 . When the frequencies of the two beams, ν + δν 1,2 , are equal to the resonant frequencies of the resonator in the two directions, the coefficient B j is equal to 0, being H a symmetrical function, so the LIAs outputs are null. On the contrary if this condition is not satisfied the LIAs outputs are proportional to the harmonic components at frequencies f 1,2 .…”

Section: Rmogs Read-outmentioning

confidence: 99%

“…For example, attitude and orbit control of satellites for Earth observation/scientific mission and inertial navigation of submarines impose very stringent requirements in terms of bias drift and resolution, respectively of the order of 0.01 • /h and 0.1 • /h, while for applications such as autonomous navigation of rover vehicles and inertial navigation of missiles there are more relaxed requirements, i.e. bias drift in the range from 0.1 • /h to 1 • /h and resolution in the range from 1 • /h to 10 • /h [1,2].…”

Section: Introductionmentioning

confidence: 99%

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Recent advances in miniaturized optical gyroscopes

Dell’Olio

Tatoli

Ciminelli

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

110

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Low-cost chip-scale optoelectronic gyroscopes having a resolution ≤ 10 • /h and a good reliability also in harsh environments could have a strong impact on the medium/high performance gyro market, which is currently dominated by well-established bulk optical angular velocity sensors. The R&D activity aiming at the demonstration of those miniaturized sensors is crucial for aerospace/defense industry, and thus it is attracting an increasing research effort and notably funds.In this paper the recent technological advances on the compact optoelectronic gyroscopes with low weight and high energy saving are reviewed. Attention is paid to both the so-called gyroscope-on-a-chip, which is a novel sensor, at the infantile stage, whose optical components are monolithically integrated on a single indium phosphide chip, and to a new ultra-high Q ring resonator for gyro applications with a configuration including a 1D photonic crystal in the resonant path. The emerging field of the gyros based on passive ring cavities, which have already shown performance comparable with that of optical fiber gyros, is also discussed.

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Section: Rmogs Read-outmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recent advances in miniaturized optical gyroscopes

Dell’Olio

Tatoli

Ciminelli

et al. 2014

J. Eur. Opt. Soc.-Rapid Publ.

110

View full text Add to dashboard Cite

show abstract

“…A is the optical beam amplitude, β 2 is the group velocity dispersion, 2 n takes into account the Kerr effect, α is the propagation loss, A eff is the propagating mode effective area, and λ is the wavelength.…”

Section: Icso 2012mentioning

confidence: 99%

“…In the last few years, the research effort on photonic systems for space applications is constantly growing [1][2][3], especially in three key application domains, i.e. analog and digital communication links [4], RF signal processing [5], and sensing [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Design and optimization of a fiber optic data link for new generation on-board SAR processing architectures

Ciminelli

Dell’Olio

Armenise

et al. 2017

International Conference on Space Optics — ICSO 2012

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“…A gyroscope is a device that is mounted on a frame and able to sense angular velocity if the frame is rotating. There are many different types of gyroscopes, with the main types used for spacecraft being mechanical gyroscopes, optical gyroscopes, and micro-electromechanical system (MEMS) gyroscopes [27].…”

Section: Gyroscopesmentioning

confidence: 99%

Magnetic Disturbance Rejection in Spacecraft using Electromagnetic Propulsion

Jane

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<p><strong>Electric propulsion drives are the future of long-life and high velocity space missions due to their superior mass efficiency and reliability. In particular, applied field magnetoplasmadynamic thrusters (AF-MPDTs) are the class of electric propulsion that have the largest thrust and could give humanity access to greater depths of our solar system. However, control aspects of AF-MPDTs have not yet been investigated and potential problems may arise if this type of thruster is used in low Earth orbit. We have shown that the interaction of the geomagnetic field with the strong AF-MPDT magnetic field will cause unwanted magnetic disturbance torques on a spacecraft while it is manoeuvring. The spacecraft will gain angular momentum per orbit from these disturbance torques, for all orbital inclinations in low Earth orbit. For a 100 kg spacecraft, the reaction wheels required for momentum management are too large from a mass perspective to compensate the magnetic disturbance torques. Using the analysis of magnetic disturbance torques, a control solution is proposed with an Extended Kalman Filter to estimate the magnetic disturbance and a PD (proportional derivative) based magnetorquer control law to compensate for the estimated disturbance as well as maintain the attitude orientation required for an orbital manoeuvre. We have shown that a spacecraft using an electromagnetic thruster can be controlled in low Earth orbit for inclinations above 50 degrees, but control characteristics become poor for near equatorial orbits due to controllibility issues relating to the homogeneity of the geomagnetic field and limitations on magnetorquer properties.</strong></p>

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Guided-wave photonic bandgap filters for space applications

Cited by 3 publications

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Recent advances in miniaturized optical gyroscopes

Recent advances in miniaturized optical gyroscopes

Design and optimization of a fiber optic data link for new generation on-board SAR processing architectures

Magnetic Disturbance Rejection in Spacecraft using Electromagnetic Propulsion

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