Single Frequency Raman Fiber Amplifiers

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MPBC’s Raman Fiber Amplifier System is capable of amplifying a narrow, linearly-polarized, NIR input signal with minimum spectrum broadening. NIR output powers of up to 15 Watts at wavelengths between 1030 nm and 1342 nm can be achieved in our standard air-cooled enclosure, with higher power available upon demand with our water-cooled enclosure.

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In addition, MPBC offers the option of converting the NIR signal into the visible region using our Second Harmonic Generator. Visible power up to 2 W is achievable for various wavelengths.

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The SF System consists of three modules:

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• Raman Fiber Amplifier: Based on single-mode polarization-maintaining fiber, the RFA accepts a narrowband seed signal and amplifies it to a high power with minimum spectrum broadening
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• Ytterbium Fiber Laser: Provides a high-intensity linearly polarized pump light needed for Raman Amplification
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• Second Harmonic Generator (Optional): Converts the frequency of the amplified signal to the visible spectrum with high efficiency
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Features

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• True diffraction limited beam with M² < 1.1
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• Unprecedented beam pointing and power stability
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• All-fusion-spliced fiber-optic train eliminates the need for alignment
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• Maintenance-free turn-key operation
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• Low power consumption compact package
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Applications

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• Laser Guide Star for Adaptive Optics
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• Sodium Vapor Spectroscopy
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• Atom Cooling
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• Microscopy
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• Interferometry
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• Holography
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• Bio Photonics Applications
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Single-Frequency NIR Raman Fiber Amplifier

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	rn Min rn	rn Typical rn	rn Max rn
rn Amplification Wavelength factory preselected rn	rn 1030 rn	rn ??/p>rn	rn 1342 rn	rn nm rn
rn Output Power rn	rn ??/p>rn	rn 8* rn	rn ??/p>rn	rn W rn
rn Polarization Linear,slow axis rn	rn ??/p>rn	rn Linear rn	rn ??/p>rn	rn ??/p>rn
rn Polarization Extinction Ratio rn	rn 98 rn	rn ??/p>rn	rn ??/p>rn	rn % rn
rn Power Stability APC, after 30 min warm-up rn	rn ??/p>rn	rn ??/p>rn	rn +/- 2 % rn	rn /hour rn
rn Transverse Mode rnrn ??/p>rn	rn ??/p>rn	rn TEM00 rn	rn ??/p>rn	rn ??/p>rn
rn Beam Quality, M2 rn	rn ??/p>rn	rn ??/p>rn	rn 1.1 rn	rn ??/p>rn
rn * Output power is wavelength dependent, please consult factory. rn

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Single-Frequency Visible Raman Fiber Amplifier

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	rn Min rn	rn Typical rn	rn Max rn	rn ??/p>rn
rn Output Wavelength depending on model rn	rn 515 rn	rn - rn	rn 670 rn	rn nm rn
rn Output Power rn	rn ??/p>rn	rn 2* rn	rn ??/p>rn	rn W rn
rn Polarization vertical in respect to the base rn	rn ??/p>rn	rn Linear rn	rn ??/p>rn	rn ??/p>rn
rn Polarization Extinction Ratio rn	rn 98 rn	rn ??/p>rn	rn ??/p>rn	rn % rn
rn Power Stability APC, after 30 min warm-up rn	rn ??/p>rn	rn ??/p>rn	rn +/- 2 % rn	rn /hour rn
rn Transverse Mode rn	rn ??/p>rn	rn TEM00 rn	rn ??/p>rn	rn ??/p>rn
rn Beam Quality, M2 rn