Broadband precision wavelength meter based on a stepping Fabry–Pérot interferometer

Scholl, Timothy J.; Rehse, Steven J.; Holt, R.A.; Rosner, S. D.

doi:10.1063/1.1791871

Cited by 22 publications

(12 citation statements)

References 18 publications

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“…Compared to other instruments for wavelength determination 28,29 , such as grating spectrometers or Michelson interferometers, WLMs based on solid Fizeau interferometers offer high accuracy and reliability [30][31][32][33][34][35] .…”

Section: A Fizeau Wavelength Metermentioning

confidence: 99%

Laser frequency stabilization using a commercial wavelength meter

Couturier

Nosske

et al. 2018

Review of Scientific Instruments

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We present the characterization of a laser frequency stabilization scheme using a state-of-the-art wavelength meter based on solid Fizeau interferometers. For a frequency-doubled Ti-sapphire laser operated at 461 nm, an absolute Allan deviation below 10 with a standard deviation of 1 MHz over 10 h is achieved. Using this laser for cooling and trapping of strontium atoms, the wavemeter scheme provides excellent stability in single-channel operation. Multi-channel operation with a multimode fiber switch results in fluctuations of the atomic fluorescence correlated to residual frequency excursions of the laser. The wavemeter-based frequency stabilization scheme can be applied to a wide range of atoms and molecules for laser spectroscopy, cooling, and trapping.

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Section: A Fizeau Wavelength Metermentioning

confidence: 99%

Laser frequency stabilization using a commercial wavelength meter

Couturier

Nosske

et al. 2018

Review of Scientific Instruments

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“…A decay of the intensity to the points more distant from the ring center is observed in reality, see [26,33,39,40,48]. This is here accomplished by multiplication of C 1 , taking only the points right of the ring center (arrow in Fig.…”

Section: Convolutions In 1d Extension From 1d To 2dmentioning

confidence: 96%

“…A multitude of methods for 2D ring radii calculation of FPI fringes have been reported in literature, e.g. [37][38][39][40], some of them also including a center evaluation (e.g. [38,40]).…”

Section: Introductionmentioning

confidence: 99%

Simulation and high-precision wavelength determination of noisy 2D Fabry–Pérot interferometric rings for direct-detection Doppler lidar and laser spectroscopy

Hirschberger

Ehret

2011

Appl. Phys. B

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Doppler wind lidar (DWL) measurements by the fringe-imaging technique in front of aircrafts at flight speed require rapid processing of backscattered signals. We discuss the measurement principle to derive the 3D wind vector from three line-of-sight (LOS) measurements. Then we simulate realistic fringe patterns of a Fabry-Pérot-interferometer (FPI) on a 2D charge-coupled device (CCD) localized at the focal plane behind it, taking atmospheric and instrument properties like scattering and noise into account. A laser at 355 nm with pulse energies of 70 mJ at 100 Hz repetition rate and a range bin of only 10 m were assumed. This yields count rates of 24 (13) million photons per pulse at 56 (76) m distance and 8.5 km altitude, that are distributed on a CCD with up to 960 × 780 pixels without intensification and therefore generate noisy pixel signals. We present two methods for the precise determination of the radii, i.e. wavelengths, of these simulated FPI rings and show that both are suitable for eliminating pixel noise from the output and coping with fringe broadening by Rayleigh scattering. One of them proves to reach the accuracy necessary for LOS velocity measurements. A standard deviation of 2.5 m s including center determination can be achieved with only 20 images to average. The bias is 7 m s . For exactly known ring centers, each can be even better than 2 m s . The methods could also be useful for high-resolution laser spectroscopy.PACS 42.68.Wt · 42.25.Hz · 95.55.Aq

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“…In some cases the fabrication of Fabry Perot interferometers requires specific laser threat wavelengths to be known in advance [14]. Determination of laser wavelength is possible with high accuracy but over a limited spectral bandwidth [15].…”

Section: Coherence Detectionmentioning

confidence: 99%