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M Squared SolsTiS User Manual

M Squared SolsTiS
65 pages
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M Squared Lasers Ltd
SolsTiS
Narrow Linewidth, Tunable CW Ti:Sapphire Laser
User Manual
v10.0
Tools to Help You Lead, Not Follow™

Table of Contents

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M Squared SolsTiS Specifications

General IconGeneral
Linewidth<1 MHz
Beam Quality (M²)<1.1
Control InterfaceEthernet, USB
PolarizationLinear
Weight15 kg
Power Requirements100-240 VAC, 50-60 Hz

Summary

A Preface – Please Read This First

B Warning Symbols

C Receiving and Unpacking Your Laser System

D Important Safety Information

D.1 General Safety Precautions

General safety advice, including warnings about user-serviceable parts and grounding.

D.2 Laser Safety

Details laser hazards, precautions, and warning labels for Class IV lasers.

D.3 System Safety Features

Protective Housing

Information about protective housings and their importance for laser system safety.

Remote Interlock Circuit

Explains the remote interlock circuit for pump laser safety.

Emission Indicator

Describes the laser emission warning indicator and its function.

Internal Shutter

Details the function of the internal shutter for blocking laser emission.

Key Switch

Explains the purpose of the key switch for preventing unauthorized use.

Manual System Reset

Describes the manual reset procedure after power interruption or interlock trip.

D.4 Safety Labels – IEC/CE/CDRH Radiation Control Drawings

D.5 Safety Label Translations

D.6 Maintaining IEC/CE/CDRH Safety Compliance

D.7 Sources of Additional Safety Information

E RoHS/WEEE/CE Compliance Statement

E.1 RoHS Directive (2002/95/EC)

Details the RoHS Directive's restrictions on hazardous substances in electronic products.

E.2 WEEE Directive (2002/96/EC)

F CE Declaration of Conformity

G Standard Units & Abbreviations

1 Introduction

2 System Description

2.1 System Overview

Explains the SolsTiS laser's tuneable CW output, design, and ease of use.

2.2 System Configuration

Lists the typical components included with the SolsTiS system.

2.3 SolsTiS Models & Standard Specifications

Presents standard specifications for different SolsTiS models and linewidth options.

2.4 Background – Principles of Operation

Explains the principles of operation behind the SolsTiS Ti:Sapphire laser.

Ti:Sapphire – A Broadly Tunable Gain Medium

Describes the Ti:Sapphire gain medium and its properties relevant to laser emission.

Laser Cavity Modes

Explains how lasers oscillate on cavity modes and longitudinal modes.

Narrow Linewidth Operation – SolsTiS Cavity Design

Details the SolsTiS cavity design, including features for narrow linewidth operation.

3 Controls, Indicators & Connectors

3.1 Pump Laser

Provides important warnings and references for operating the pump laser.

3.2 SolsTiS Laser Head

Describes the sealed, hands-free SolsTiS laser head and its computer-controlled operation.

Controls

Notes that the laser head has no external controls; operation is via PC software.

Indicators

States that the laser head has no embedded indicators; status is shown in software UI.

Connections

Details the electrical connections to the SolsTiS laser head.

3.3 Pump Optics Module

Describes the Pump Optics Module (POM) used for routing and aligning the pump beam.

Controls

Explains manual adjustment of POM mirrors for pump beam alignment.

3.4 SolsTiS Wavelength Control Unit

Details the SolsTiS control unit, its ICE-BLOC platform, and Ethernet connectivity.

Indicators & Connections

Lists indicators and connections for the wavelength control unit.

Controls

Notes controls are via software UI and netbook, apart from AC Power I/O.

3.5 Laptop and Software User Interface

Explains Ethernet connection and use of the SolsTiS software UI via a web browser.

3.6 Water Chiller (High Power Pump Lasers Only)

Discusses the water chiller for high-power pump lasers and its installation.

4 Installation

4.1 Unpacking Your System

Instructions for inspecting and unpacking the system components.

4.2 Installation – An Overview

Overview of the straightforward setup and operation of the SolsTiS system.

4.3 Preparing for Installation

Factors and precautions for planning the installation and placement of the system.

Safety and Handling Precautions (Voltage, Fiber)

Grouped warnings on voltage selection, controller placement, and optical fiber handling.

Safety and Handling Precautions (Weight, PC)

Grouped cautions on laser head weight, PC usage, and netbook PC usage.

4.4 Installing the SolsTiS Wavelength Control Unit

Step-by-step guide for connecting and activating the SolsTiS wavelength control unit.

4.5 Ethernet Control - Installing & Using the Software UI

Explains network addressing and Ethernet connection for software control.

Background

Details network addressing (MAC, IP) and the role of DHCP in network setup.

Pre-configured Connections

Notes that the laptop and control unit are pre-configured with fixed IP addresses.

Installing and Configuring the SolsTiS Wavelength Control Unit

Guides users through connecting the laptop to the control unit and accessing the UI.

Factory Default Password Settings

Lists password levels and typical default settings for system access.

4.6 Initial Internal Optical Alignment

States no internal optical alignment is needed due to the laser's design.

5 Operating the Laser System

5.1 Initial Start Up – Activating the SolsTiS System

Steps for initial system start-up and activating the laser system.

Initial Alignment of Pump Laser to SolsTiS

Guides for initial coarse alignment of the pump laser to the SolsTiS head.

SolsTiS with Integrated Pump Laser

Steps for mounting and coarsely aligning an integrated pump laser.

SolsTiS with Separate (Non-Integrated) Pump Laser

Steps for coarsely aligning a separate, non-integrated pump laser.

Initial Pump Beam Alignment Check AT LOW PUMP POWER

Procedure for checking and optimizing pump beam alignment at low power.

5.2 Wavelength Tuning & Scanning

Explains how to tune and scan the SolsTiS laser's output wavelength.

Coarse Wavelength Tuning – Adjusting the Intracavity BRF

Guides on using the BRF Tune control for coarse wavelength adjustment.

Fine Wavelength Tuning - Adjusting the Intracavity Etalon

Details fine-tuning wavelength using the Etalon Tune adjustment.

Single Longitudinal Mode Operation – Locking the Intracavity Etalon

Explains how to lock the etalon to achieve single longitudinal mode operation.

Fine Frequency Tuning - Locking to and Adjusting the Reference Cavity

Guides on locking and adjusting the reference cavity for fine frequency tuning.

Frequency Scanning (SolsTiS-SRX and -PSX Only)

Explains how to scan SolsTiS frequency by adjusting the reference cavity.

Cavity Continuous Scan

Describes the continuous scan mode for wavelength scanning.

Cavity Single Scan

Describes the single scan mode for wavelength scanning.

Cavity Ramp Scan

Describes the cavity ramp scan for small frequency range scans.

Modulate Function

Describes the modulate function for diagnostic purposes.

5.3 Storing User Settings

How to permanently store user settings via the Save Data button.

5.4 Shutting Down the SolsTiS Laser System

Instructions for shutting down the laser system and the chiller.

5.5 Purging SolsTiS

Guidance on purging the SolsTiS laser head with dry nitrogen.

6 Maintenance & Troubleshooting

System Safety and Hazard Warnings

Grouped warnings about covers, voltages, laser hazards, contamination, and manual adherence.

6.1 Recommended Maintenance Schedule

Outlines recommended maintenance tasks, including cleaning and periodic checks.

Maintenance and Safety Compliance Checks

Grouped notes on cleaning, safety feature verification, and chiller maintenance.

6.2 Monitoring Intracavity Photodiodes and Voltages

How to monitor photodiodes and system voltages using the Monitor Out MCX.

6.3 Troubleshooting Tips

Provides tips for troubleshooting common issues with the SolsTiS laser system.

Troubleshooting Assistance and Optics Cleaning Warnings

Grouped notes on consulting manuals and warnings about optics cleaning.

Drop in SolsTiS Output Power

Addresses troubleshooting steps for a drop in SolsTiS output power.

7 Customer Service

8 Warranty

Appendix A: Cleaning Laser Optics – General Guidelines

Laser Optics Handling and Cleaning Precautions

Grouped warnings and cautions on handling, inspecting, and cleaning laser optics.

Deciding If Cleaning May be Necessary

Advice on when cleaning laser optics is necessary and the risks involved.

Cleaning Optics in the SolsTiS System

Specific procedure for cleaning the SolsTiS laser head output window.

Appendix B: Pump Lasers Assessed for Use with SolsTiS

Pump Laser Compatibility and Safety Warnings

Warnings about changing pump lasers and notes on list accuracy and compatibility.

Appendix C: Final Data and Typical Performance Data for Your SolsTiS System

Appendix D: External Reference Cavity and Resonator Input Characteristics

Resonator Fast External Input

Describes the Resonator Fast input for frequency modulation and its characteristics.

Resonator Slow External Input

Describes the Resonator Slow input for scanning the laser over its full tuning range.

Reference Cavity External Input

Describes the Reference Cavity input for external tuning/scanning.

Spare Programmable Input/Output

Appendix E: Operating the Laser Without the External Reference Cavity