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Crystal Technology Brochure - 52 Pages

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Catalogue excerpts

Crystal Technology • Faraday Isolators • Pockels Cells • Laser Modulators

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3 LINOS History 4 The Team 5 Faraday Isolators Introduction 6 Product Overview 8 Single Stage Faraday Isolators 9 Broad Tuning Range Isolators 16 Two Stage Isolators 19 Faraday Isolator Questionnaire 22 Pockels Cells Introduction 23 Product Overview 26 KD*Pockels Cells 27 LiNbO3 Pockels Cells 34 BBO Pockels Cells 35 RTP Pockels Cells 37 Pockels Cell Positioner 38 Pockels Cell Questionnaire 39 Laser Modulators Introduction 40 Laser Modulators 42 Phase Modulators 47 Analog Amplifier 48 Digital Pulse Amplifier 49 Laser Modulator Questionnaire 50 Crystal Technology LINOS Photonics GmbH & Co. KG Business...

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4 LINOS History With over 800 employees (more than 130 of which are physicists and engineers) working at three German sites and many subsidiaries all over the world, we are able to meet all of our customers’ requirements in the optical industry. Our aim is to provide extensive service and customer support from the very first customer contact. With many years of experience and a huge range of projects carried out in numerous applications we can offer a solution for almost any problem. In addition there are our specialist teams who provide services to customers in the fields of optical design, system...

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5 The Team Your satisfaction is our primary goal. Since the inception of the laser over 40 years ago, LINOS Photonics has provided the highest quality components for lasers and laser based systems. Bringing to bear the experience and resources of the former companies Gsänger, Spindler & Hoyer and Rodenstock Präzisionsoptik we work closely with our customers to develop and produce cutting-edge technology in electro-optics, magneto-optics and optomechanical assemblies. This allows us to offer the industry`s most advanced standard and custom products for this rapidly developing industry. A long-standing...

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6 Principle of Operation Faraday isolators are optical components which allow light to travel in only one direction. Their mode of operation is based on the non-linear Faraday effect (magneto rotation). In principle, the function of an optical isolator is analogue to that of an electrical diode. Faraday isolators are composed of three elements: • Entrance Polarizer • Faraday Rotator • Exit Polarizer Thin film polarizers are commonly used as entrance and exit polarizers, typically in form of a special polarizing beam splitter cube. These polarizers have an extremely high extinction ratio and are...

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7 Faraday Isolators Advantages www.linos.com/isolators Faraday Isolators Pockels Cells Laser Modulators High Isolation The properties of the Faraday isolator are determined by the quality of the optical elements and the uniformity of the magnetic field. The entrance and exit polarizers exhibit a very high extinction ratio, so that the isolation is mainly limited by inhomogenities in the crystal material. Specially selected crystal materials with a high Verdet constant combined with permanent magnets with a high remanence enable us to use shorter crystals and obtain an isolation > 30dB. The radiation...

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www.linos.com/isolators 9 Introduction The compact Faraday isolators in this chapter use a single stage rotator. The length is kept to a minimum with the use of powerful permanent magnets in an optimized geometry. A 360° rotation of the exit polarizer provides a maximum extinction over a certain range around the central wavelength. The entrance and exit polarizers are polarizing beam splitter cubes. The blocked radiation is diverted by 90° and is readily available for other applications. At 30dB, the specification of the isolator is sufficient for most standard applications. For specialized applications,...

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10 ƒO ƒOƒP ƒO ƒQƒRƒSƒP ƒTƒUƒSƒO ƒOƒV ƒP ƒQƒP FI-x-2SV / FI-x-2SI FI-x-2SV (x=530, 630, 680nm) • Isolation better than 30dB / typically 38-42dB over the entire wavelength range, custom isolation values on request • TGG crystal • Rare earth magnet • Output polarizer, 360° rotation, engraved tuning scale • Access to blocked beam • Mounting 2SV-version: via two M3 threaded holes at the bottom side, 20mm separation ƒOƒP ƒQƒRƒSƒT ƒO ƒUƒR ƒO ƒVƒQƒSƒTƒP www.linos.com/isolators FI-x-2SI (x=760, 820, 990, 1060nm) 2mm Aperture Isolators Laser Modulators Pockels Cells Faraday Isolators Order No. Product Isolation,...

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11 FI-x-3SC / FI-x-5SC FI-x-3SC (x=980, 1064nm) • Extreme compact design • Isolation better than 30dB, typically 38–42dB over the entire wavelength range, custom isolation values on request • TGG crystal • Rare earth magnet • Output polarizer, 360° rotation, engraved tuning scale • Access to blocked beam • Optional version with Brewster plate polarizers (BP) on request for FI-1060-xSC, isolation better than 30dB • Mounting: via four M2 threaded holes at the bottom side and at backside, 15 x 22,5 mm separation (3SC-version, except FI-1210-3SC), 49,5 x 22,5 mm separation (FI-1210-3SC), 13 x 22,5...

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12 FI-x-5SV / FI-x-5SI • Isolation better than 30dB, typically 38–42dB over the entire wavelength range, custom isolation values on request • TGG crystal • Rare earth magnet • Output polarizer, 360° rotation, engraved tuning scale • Access to blocked beam • Optional version with Brewster plate polarizers (BP) on request for FI-1060-5SI, isolation better than 30dB • For upgrading to broadband-version refer to chapter Special Isolators • Mounting: via two M4 threaded holes at the bottom side and at the back side, 30mm separation (5SV-version), 40mm separation (5SI-version), or via base plate • Base...

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www.linos.com/isolators 13 8mm Aperture Isolators Faraday Isolators Pockels Cells Laser Modulators • Isolation better than 30dB, typically 38–42dB over the entire wavelength range, custom isolation values on request • TGG crystal • Rare earth magnet • Output polarizer, 360° rotation, engraved tuning scale • Access to blocked beam • Optional version with Brewster plate polarizers (BP) on request, isolation better than 30dB • Mounting: via two M4 threaded holes at the bottom side and at the back side, 55mm separation, or via base plate • Base plate included ƒOƒO ƒP ƒPƒO ƒQƒP ƒO ƒRƒS ƒP ƒRƒT ƒPƒU...

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