Coherent Optical Transponder at Femto–Watt Light Levels

Dick, J. R.; Tu, Meirong; Birnbaum, Kevin; Strekalov, Dmitry; Yu, Nan; Salik, Ertan

doi:10.1364/cota.2008.ctuc7

Cited by 7 publications

(10 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Weak-light phase locking is demonstrated in laboratories. 29,30,83 Weak-light technology still needs developments. And we do anticipate the possibility of an earlier launch date for eLISA (or a substitute mission) and possible earlier flight of other missions.…”

Section: Discussionmentioning

confidence: 99%

“…Liao et al 29,30 have demonstrated the phase locking of a local oscillator with 2-pW laser light in laboratory. Dick et al 83 have demonstrated phase locking to 40-fW incoming weak laser light. The power requirement feasibility for both e-LISA/NGO and ASTROD-GW is met with these developments.…”

Section: Interferometric Space Missionsmentioning

confidence: 99%

“…In Tsing Hua University, 2 pW weak-light phase-locking with 0.2 mW local oscillator has been demonstrated. 29,30 In JPL (Jet Propulsion Laboratory), Dick et al 83 have achieved offset phase locking to 40 fW incoming laser light. It would be good for future development focusing on frequencytracking, modulation-demodulation and coding-decoding to make it a mature experimental technique.…”

Section: Payload Conceptmentioning

confidence: 99%

See 2 more Smart Citations

Gravitational wave detection in space

2016

Int. J. Mod. Phys. D

View full text Add to dashboard Cite

Gravitational wave (GW) detection in space is aimed at low frequency band (100 nHz - 100 mHz) and middle frequency band (100 mHz - 10 Hz). The science goals are the detection of GWs from (i) Supermassive Black Holes; (ii) Extreme-Mass-Ratio Black Hole Inspirals; (iii) Intermediate-Mass Black Holes; (iv) Galactic Compact Binaries and (v) Relic GW Background. In this paper, we present an overview on the sensitivity, orbit design, basic orbit configuration, angular resolution, orbit optimization, deployment, time-delay interferometry and payload concept of the current proposed GW detectors in space under study. The detector proposals under study have arm length ranging from 1000 km to 1.3 x 109 km (8.6 AU) including (a) Solar orbiting detectors -- ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using Optical Devices] optimized for GW detection), BBO (Big Bang Observer), DECIGO (DECi-hertz Interferometer GW Observatory), e-LISA (evolved LISA [Laser Interferometer Space Antenna]), LISA, other LISA-type detectors such as ALIA, TAIJI etc. (in Earth-like solar orbits), and Super-ASTROD (in Jupiter-like solar orbits); and (b) Earth orbiting detectors -- ASTROD-EM/LAGRANGE, GADFLI/GEOGRAWI/g-LISA, OMEGA and TIANQIN.Comment: 48 pages, 10 figures, Chapter 12 in One Hundred Years of General Relativity: From Genesis and Empirical Foundations to Gravitational Waves, Cosmology and Quantum Gravity, ed.W.-T. Ni (World Scientific, Singapore, 2016); Int. J. Mod. Phys. D, to be published. arXiv admin note: substantial text overlap with arXiv:1212.281

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Interferometric Space Missionsmentioning

confidence: 99%

Section: Payload Conceptmentioning

confidence: 99%

See 1 more Smart Citation

Gravitational wave detection in space

2016

Int. J. Mod. Phys. D

View full text Add to dashboard Cite

show abstract

“…We have demonstrated in the laboratory the phase locking of a local oscillator with 2 pW laser light. 71,72 Dick et al 73 have demonstrated phase locking to 40 fW incoming weak laser light. The power requirement feasibility for ASTROD-GW is met with these developments.…”

Section: Time Delay Interferometry (Tdi)mentioning

confidence: 99%

Astrod-Gw: Overview and Progress

2013

Int. J. Mod. Phys. D

View full text Add to dashboard Cite

In this paper, we present an overview of Astrodynamical Space Test of Relativity using Optical Devices (ASTROD-GW) optimized for Gravitational Wave (GW) detection mission concept and its studies. ASTROD-GW is an optimization of ASTROD which focuses on low frequency GW detection. The detection sensitivity is shifted by a factor of 260 (52) towards longer wavelengths compared with that of NGO/eLISA (LISA). The mission consists of three spacecraft, each of which orbits near one of the Sun-Earth Lagrange points (L3, L4 and L5), such that the array forms an almost equilateral triangle. The three spacecraft range interferometrically with one another with an arm length of about 260 million kilometers. The orbits have been optimized resulting in arm length changes of less than ± 0.00015 AU or, fractionally, less than ±10 −4 in 20 years, and relative Doppler velocities of the three spacecraft of less than ±3 m/s. In this paper, we present an overview of the mission covering: the scientific aims, the sensitivity spectrum, the basic orbit configuration, the simulation and optimization of the spacecraft orbits, the deployment of ASTROD-GW formation, Time Delay Interferometry (TDI) and the payload. The science goals are the detection of GWs from (i) Supermassive Black Holes; (ii) Extreme-Mass-Ratio Black Hole Inspirals; (iii) Intermediate-Mass Black Holes; (iv) Galactic Compact Binaries and (v) Relic GW Background. For the purposes of primordial GW detection, a six spacecraft formation would be needed to enable the correlated detection of stochastic GWs. A brief discussion of the six spacecraft orbit optimization is also presented. PACS Number(s): 04.80.Nn, 95.30.Sf, 95.55.Ym, 98.36.+x, 98.62.Ai 1341004-1 Int. J. Mod. Phys. D 2013.22. Downloaded from www.worldscientific.com by UNIVERSITY OF MICHIGAN on 03/15/15. For personal use only. 1341004-2 Int. J. Mod. Phys. D 2013.22. Downloaded from www.worldscientific.com by UNIVERSITY OF MICHIGAN on 03/15/15. For personal use only.

show abstract

“…We have demonstrated the weak light phase locking capability to 2 pW. [34,35] More recently, JPL people have demonstrated the weak light phase locking capability to 40 f W. [36] The power requirement feasibility of phase locking is met. ASTROD-GW will complement NGO/eLISA and PTA in exploring black hole co-evolution with galaxies and GW backgrounds in the important frequency range 100 nHz -1 mHz.…”

Section: Astrod-gw (Astrod [Astrodynamical Space Test Of Relativity Umentioning

confidence: 99%

Orbit optimization for ASTROD-GW and its time delay interferometry with two arms using CGC ephemeris

Wang¹,

Ni²

2013

Chinese Phys. B

View full text Add to dashboard Cite

ASTROD-GW (ASTROD [Astrodynamical Space Test of Relativity using OpticalDevices] optimized for Gravitation Wave detection) is an optimization of ASTROD to focus on the goal of detection of gravitation waves. The detection sensitivity is shifted 52 times toward larger wavelength compared to that of LISA. The mission orbits of the 3 spacecraft forming a nearly equilateral triangular array are chosen to be near the Sun-Earth Lagrange points L3, L4 and L5. The 3 spacecraft range interferometrically with one another with arm length about 260 million kilometers. In order to attain the requisite sensitivity for ASTROD-GW, laser frequency noise must be suppressed below the secondary noises such as the optical path noise, acceleration noise etc. For suppressing laser frequency noise, we need to use time delay interferometry (TDI) to match the two different optical paths (times of travel). Since planets and other solar-system bodies perturb the orbits of ASTROD-GW spacecraft and affect the (TDI), we simulate the time delay numerically using CGC 2.7 ephemeris framework. To conform to the ASTROD-GW planning, we work out a set of 20-year optimized mission orbits of ASTROD-GW spacecraft starting at June 21, 2028, and calculate the residual optical path differences in the first and second generation TDI for one-detector case. In our optimized mission orbits for 20 years, changes of arm length are less than 0.0003 AU; the relative Doppler velocities are less than 3m/s. All the second generation TDI for one-detector case satisfies the ASTROD-GW requirement.

show abstract

Coherent Optical Transponder at Femto–Watt Light Levels

Cited by 7 publications

References 3 publications

Gravitational wave detection in space

Gravitational wave detection in space

Astrod-Gw: Overview and Progress

Orbit optimization for ASTROD-GW and its time delay interferometry with two arms using CGC ephemeris

Contact Info

Product

Resources

About