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npro

Mephisto Lasers

Mephisto Lasers

…instrumentation applications. Mephisto is a family of single frequency solid-state lasers based on Nd:YAG crystal in Non-Planar Ring Oscillator (NPRO) configuration. The intrinsic stability of the laser is further improved by our acclaimed Noise Eater (NE) technology which is now included with all…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…oscillation and loss of the main functionality of the NPRO. From these considerations, it is clear that a high power NPRO has a design optimized for the nominal output power rather than for low threshold or high efficiency when used at low power. The NPRO design is scalable to output power as high…

Mephisto/Mephisto-S

Mephisto/Mephisto-S

…power up to 0.5 W. Fiber coupling is available as an option for all variants. All Mephisto family products utilize a Non-Planar Ring Oscillator (NPRO). This is a miniature monolithic laser cavity with the intracavity path completely inside the Nd:YAG crystal. The combination of this non-planar…

Prometheus

Prometheus

…Linewidth CW DPSS Green Laser Prometheus laser, as the whole Mephisto family, is based on a Non-Planar Ring Oscillator (NPRO) configuration. The output from Nd:YAG NPRO is frequency doubled in an efficient periodically poled crystal. Output power up to 100 mW is available at green wavelength.…

COHR MephistoMOPA DS 1116revC 4.pdf

COHR MephistoMOPA DS 1116revC 4.pdf

…upon request. As the whole Mephisto family, MOPA is also based on NPRO crystal configuration. This diode-pumped monolithic device is compact, impervious to contamination and other degradation processes.The emission from NPRO is amplified by multiple power amplification stages in order to reach…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…oscillation and loss of the main functionality of the NPRO. From these considerations, it is clear that a high power NPRO has a design optimized for the nominal output power rather than for low threshold or high efficiency when used at low power. The NPRO design is scalable to output power as high…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…oscillator (NPRO) is still recognized as the lowest noise CW laser architecture. With a cavity based exclusively on a monolithic crystal rather than discrete optical elements, the NPRO can deliver linewidths <1 kHz because of its extremely low phase noise. The Coherent Mephisto's NPRO further lowers…

Mephisto MOPA

Mephisto MOPA

…25, 42 and 55 W are available. The higher power versions of the MOPA use an optical isolator to prevent damaging back-reflections into the Mephisto NPRO crystal. Because of the high pump and output powers of Mephisto MOPA, liquid cooling of the laser head is required. Due to the laser configuration,…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…oscillator (NPRO) is still recognized as the lowest noise CW laser architecture. With a cavity based exclusively on a monolithic crystal rather than discrete optical elements, the NPRO can deliver linewidths <1 kHz because of its extremely low phase noise. The Coherent Mephisto's NPRO further lowers…

COHR Prometheus DS 0816 1.pdf

COHR Prometheus DS 0816 1.pdf

…package. Being based on a widely recognized Non-Planar Ring Oscillator (NPRO) configuration Prometheus features frequency and intensity stability parameters unmatched by any other commercial product. The diode-pumped NPRO crystal is extremely compact, impervious to contamination and other…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…output coupling coating on Facet A can then be designed to slightly favor one polarization, resulting in unidirectional oscillations. Figure 2 In a NPRO the gain crystal forms a monolithic laser cavity, where the facet angles ensure high reflectivity through total internal reflection (TIR). The…

WP1 MephistoNPRO Final.pdf

WP1 MephistoNPRO Final.pdf

…this frequency jitter may be expressed in the form of a power spectral density (PSD) statistical distribution in units of Hz/Hz. When the Mephisto NPRO's frequency noise is expressed in this way, it follows a 1/f behavior [5]. The frequency noise is about 104 Hz/Hz at 1 Hz and goes down to 1 Hz/Hz…

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