Subwatt Threshold cw Raman Fiber-Gas Laser Based on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>-Filled Hollow-Core Photonic Crystal Fiber

Couny, F.; Benabid, Fetah; Light, P.S.

doi:10.1103/physrevlett.99.143903

Cited by 126 publications

(54 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Up to a probe power of 12 mW the detector thus removes classical noise from the probe, and we would therefore gain at least a factor of 6 in the SNR, if the probe power was increased from the current ∼ 1.8 mW to 12 mW. Furthermore, an additional factor of 10 in SNR can be gained by increasing the pump power to 2-3 W without any damage to the fiber [8].…”

Section: Resultsmentioning

confidence: 99%

“…Recently, more focus has been given to a different approach were the Raman transition is stimulated coherently using two lasers with different frequencies, with the frequency difference between the two lasers corresponding to the energy difference in the Raman transition involved [4]. Stimulating the transition in this way instead of relying on a spontaneous process gives orders of magnitude larger signal [7] and makes it possible to observe the Raman signal with CW lasers with moderate optical power in the sub-watt range, which otherwise for spontaneous excitation would require Watt levels of CW power in the best case [8,9]. In further pursuit of higher Raman signal-to-noise ratio, efforts have been made to contain molecules inside a hollow-core fiber [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Differential high-resolution stimulated CW Raman spectroscopy of hydrogen in a hollow-core fiber

2015

View full text Add to dashboard Cite

Abstract:We demonstrate sensitive high-resolution stimulated Raman measurements of hydrogen using a hollow-core photonic crystal fiber (HC-PCF). The Raman transition is pumped by a narrow linewidth (< 50 kHz) 1064 nm continuous-wave (CW) fiber laser. The probe light is produced by a homebuilt CW optical parametric oscillator (OPO), tunable from around 800 nm to 1300 nm (linewidth ∼ 5 MHz). These narrow linewidth lasers allow for an excellent spectral resolution of approximately 10 −4 cm −1 . The setup employs a differential measurement technique for noise rejection in the probe beam, which also eliminates background signals from the fiber. With the high sensitivity obtained, Raman signals were observed with only a few mW of optical power in both the pump and probe beams. This demonstration allows for high resolution Raman identification of molecules and quantification of Raman signal strengths.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Differential high-resolution stimulated CW Raman spectroscopy of hydrogen in a hollow-core fiber

2015

View full text Add to dashboard Cite

show abstract

“…This type of fiber allows much broader spectral bandwidths than that achieved in HC-PBG fibers. An example of hollow-core fibers guiding via inhibited coupling is the Kagome fiber [10][11][12]. Several Kagome fibers with different core shapes and sizes have been studied and developed to date for controlling the leakage loss (also known as confinement loss) and modal properties [11,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Low-loss hollow-core silica fibers with adjacent nested anti-resonant tubes

Habib¹,

Bang²,

Bache³

2015

Opt. Express

View full text Add to dashboard Cite

Abstract:We report on numerical design optimization of hollow-core antiresonant fibers with the aim of reducing transmission losses. We show that re-arranging the nested anti-resonant tubes in the cladding to be adjacent has the effect of significantly reducing leakage as well as bending losses, and for reaching high loss extinction ratios between the fundamental mode and higher order modes. We investigate two versions of the proposed design, one optimized for the mid-IR and another scaled down version for the near-IR and compare them in detail with previously proposed antiresonant fiber designs including nested elements. Our proposed design is superior with respect to obtaining the lowest leakage losses and the bend losses are also much lower than for the previous designs. Leakage losses as low as 0.0015 dB/km and bending losses of 0.006 dB/km at 5 cm bending radius are predicted at the ytterbium lasing wavelength 1.06 µm. When optimizing the higher-order-mode extinction ratio, the low leakage loss is sacrificed to get an effective single-mode behavior of the fiber. We show that the higher-order-mode extinction ratio is more than 1500 in the range 1.0-1.1 µm around the ytterbium lasing wavelength, while in the mid-IR it can be over 100 around λ = 2.94 μm. This is higher than the previously considered structures in the literature using nested tubes.

show abstract

“…Designing a cavity for GFLs remains a challenging problem because there are neither fiber couplers nor analogues of fiber Bragg gratings for hollow-core fibers. Nevertheless, a few studies addressed cavity-based GFL schemes using a ring cavity that was made from bulk elements [40] and a Fabry-Perot cavity formed by Bragg gratings spliced to the end faces of an active hollow-core fiber [56].…”

Section: Mid-infrared Raman Laser Based On Revolver Fibersmentioning

confidence: 99%

Revolver Hollow Core Optical Fibers

Bufetov

Косолапов

Pryamikov

et al. 2018

Fibers

View full text Add to dashboard Cite

Revolver optical fibers (RF) are special type of hollow-core optical fibers with negative curvature of the core-cladding boundary and with cladding that is formed by a one ring layer of capillaries. The physical mechanisms contributing to the waveguiding parameters of RFs are discussed. The optical properties and possible applications of RFs are reviewed. Special attention is paid to the mid-IR hydrogen Raman lasers that are based on RFs and generating in the wavelength region from 2.9 to 4.4 μm.

show abstract

Subwatt Threshold cw Raman Fiber-Gas Laser Based onH2-Filled Hollow-Core Photonic Crystal Fiber

Cited by 126 publications

References 16 publications

Differential high-resolution stimulated CW Raman spectroscopy of hydrogen in a hollow-core fiber

Differential high-resolution stimulated CW Raman spectroscopy of hydrogen in a hollow-core fiber

Low-loss hollow-core silica fibers with adjacent nested anti-resonant tubes

Revolver Hollow Core Optical Fibers

Contact Info

Product

Resources

About