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Lumiloop LSProbe 1.2 Application Note

Laser-powered electric-field probes
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Reliable Operation of LSProbe 1.2
Laser-Powered Electric-Field Probes
LUMILOOP GmbH, support@lumiloop.de
Contents
Application Note 4,
November 23, 2020
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Summary of Contents for Lumiloop LSProbe 1.2

  • Page 1: Table Of Contents

    Reliable Operation of LSProbe 1.2 Laser-Powered Electric-Field Probes LUMILOOP GmbH, support@lumiloop.de November 23, 2020 Contents 1 Introduction 2 Fiber Failure Mechanism 3 Sacrificial Cable Kits for LSProbe 1.2 Field Probe Systems 4 Fiber Connector Cleaning Instructions 5 Replacing Sacrificial Cables 6 Fiber Handling Recommendations...

  • Page 2: Introduction

    That means, the system is quickly ready for use again. A spare sacrificial cable kit is provided with each LSProbe 1.2 Field Probe. To avoid further progression of burn-in defects, the complete kit including both sacrificial cables and the E2000 coupler shall always be replaced.

  • Page 3: Fiber Failure Mechanism

    Application Note 4 Reliable Operation of LSProbe 1.2 Field Probes 2 Fiber Failure Mechanism LUMILOOP’s statistics show that more than three quarters of the field probes that are turned-in for analysis have fiber issues caused by improper handling. For transparency, LUMILOOP creates a detailed report for every returned field probe, con- taining failure analysis and corrective measures.

  • Page 4: Sacrificial Cable Kits For Lsprobe 1.2 Field Probe Systems

    Application Note 4 Reliable Operation of LSProbe 1.2 Field Probes LSProbe 1.2 field probe systems can launch up to 1 Watts of optical power into a 62.5 µm optical fiber core. The resulting power density is more than a thousand times greater than that of a typical hot plate.
  • Page 5 FC/ST connectors of the Field Probe, the Computer Interface and the fiber extension cable. Fig. 5 shows the fiber connections of a typical LSProbe 1.2 Field Probe System. Figure 5: Typical LSProbe 1.2 Field Probe System with sacrificial cable kits As highlighted in Fig.

  • Page 6: Fiber Connector Cleaning Instructions

    Application Note 4 Reliable Operation of LSProbe 1.2 Field Probes 4 Fiber Connector Cleaning Instructions There are two methods for cleaning fiber-optic connectors: dry cleaning and wet-to-dry cleaning. Dry cleaning is suitable for minor contamination. Wet-to-dry cleaning is suitable for severe contamination caused by skin oils, skin flakes, dust particles, etc. Therefore, LUMILOOP recommends the wet-to-dry cleaning method, detailed in this section.
  • Page 7 Application Note 4 Reliable Operation of LSProbe 1.2 Field Probes Step 1: Only for E2000 connectors, unclip the con- Step 2: Expose a fresh area of the lint-free fiber op- nector pair and apply an E2000 locking cap. tic cleaning platform.

  • Page 8: Replacing Sacrificial Cables

    • In case of a burn-in defect at a fiber extension cable, the sacrificial cable kit and the extension cable can be replaced with spares. Please contact LUMILOOP for support. • In case of a burn-in defect at the Computer Interface, experienced users may remove and replace the short orange fiber cable attached to the Computer Interface shown...

  • Page 9: Fiber Handling Recommendations

    • Avoid bending of fiber optic cables more than the criticial radius. For the fiber-optic cables supplied with the LSProbe 1.2 Field Probe, the critical bending radius can be given with 60 mm for short term and 100 mm long term bending.

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