Visible wavelength astro-comb

Benedick, Andrew; Chang, Guoqing; Birge, Jonathan R.; Chen, Li-Jin; Glenday, Alexander G.; Li, Chih‐Hao; Phillips, David F.; Szentgyorgyi, Andrew; Korzennik, S. G.; Fürész, Gábor; Walsworth, Ronald L.; Kärtner, Franz X.

doi:10.1364/oe.18.019175

Cited by 45 publications

(26 citation statements)

References 21 publications

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“…1). In previous work we developed astro-combs operating in the deep red (∼ 800 nm) [4] and in the blue (∼ 410 nm) [5]. We deployed and successfully operated these red and blue astro-combs at the Tillinghast Reflector Echelle Spectrograph (TRES) and 1.5 m telescope at the Fred Lawrence Whipple Observatory (FLWO) on Mt.…”

Section: Introductionmentioning

confidence: 99%

Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb

Phillips¹,

Glenday²,

Li³

et al. 2012

Opt. Express

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Abstract:We deployed two wavelength calibrators based on laser frequency combs ("astro-combs") at an astronomical telescope. One astrocomb operated over a 100 nm band in the deep red (∼ 800 nm) and a second operated over a 20 nm band in the blue (∼ 400 nm). We used these red and blue astro-combs to calibrate a high-resolution astrophysical spectrograph integrated with a 1.5 m telescope, and demonstrated calibration precision and stability sufficient to enable detection of changes in stellar radial velocity < 1 m/s.

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Section: Introductionmentioning

confidence: 99%

Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb

Phillips¹,

Glenday²,

Li³

et al. 2012

Opt. Express

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“…Charge-coupled devices (CCDs) used in astrophysical spectrograph also have better response in this wavelength region. Recently, we have demonstrated a blue astro-comb (410 nm -425 nm) [11] based on a frequency-doubled 1 GHz Ti:sapphire frequency comb filtered by a FP cavity. Limited by the bandwidth of the phase matching of the frequency doubling process in a 1 mm thick beta-barium borate (BBO) crystal, the blue astro-comb has a bandwidth of only 15 nm, which is slight narrower than the transmission bandwidth of the FP cavity (20nm) made with two identical, individually-optimized low-dispersion mirrors.…”

Section: Design Examples: a Two-mirror Zero-gdd Mirror Pair For Greenmentioning

confidence: 99%

Broadband dispersion-free optical cavities based on zero group delay dispersion mirror sets

Chen¹,

Chang²,

Li³

et al. 2010

Opt. Express

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A broadband dispersion-free optical cavity using a zero group delay dispersion (zero-GDD) mirror set is demonstrated. In general zero-GDD mirror sets consist of two or more mirrors with opposite group delay dispersion (GDD), that when used together, form an optical cavity with vanishing dispersion over an enhanced bandwidth in comparison with traditional low GDD mirrors. More specifically, in this paper, we show a realization of such a two-mirror cavity, where the mirrors show opposite GDD and simultaneously a mirror reflectivity of 99.2% over 100 nm bandwidth (480 nm -580 nm).

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“…The accurate and stable frequency reference provides advantages in many fundamental experiments 1,2 while parallelly being used in applications ranging from improving the accuracy of astronomical spectrographs 3,4 as well as the detection of molecular markers in human breath. 5 Another advantage that the optical frequency comb laser source offers is the extraordinary phase stability between the pulses of the laser.…”

Section: Introductionmentioning

confidence: 99%

Comb mode filtering silver mirror cavity for spectroscopic distance measurement

Šmíd

Hänsel

Pravdova

et al. 2016

Review of Scientific Instruments

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In this work we present a design of an external optical cavity based on Fabry-Perot etalons applied to a 100 MHz Er-doped fiber optical frequency comb working at 1560 nm to increase its repetition frequency. A Fabry-Perot cavity is constructed based on a transportable cage system with two silver mirrors in plano-concave geometry including the mode-matching lenses, fiber coupled collimation package and detection unit. The system enables full 3D angle mirror tilting and x-y off axis movement as well as distance between the mirrors. We demonstrate the increase of repetition frequency by direct measurement of the beat frequency and spectrally by using the virtually imaged phased array images. Published by AIP Publishing. [http://dx

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Visible wavelength astro-comb

Cited by 45 publications

References 21 publications

Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb

Calibration of an astrophysical spectrograph below 1 m/s using a laser frequency comb

Broadband dispersion-free optical cavities based on zero group delay dispersion mirror sets

Comb mode filtering silver mirror cavity for spectroscopic distance measurement

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