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DORIC LISER & LED Series User Manual

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TM
LISER
& LED/LD Light Source
User Manual
Version 1.0.0

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Summary of Contents for DORIC LISER & LED Series

  • Page 1 LISER & LED/LD Light Source User Manual Version 1.0.0...

  • Page 2: Table Of Contents

    ..........12 4 Doric Neuroscience Studio 4.1 Channel Configuration...

  • Page 3: Important Safety Information

    If you are not familiar with laser light sources, ask for advice to qualified personnel BEFORE FIRST USE and READ CAREFULLY the application note Important Laser Safety Information that can be found on the USB key. You can also contact directly Doric Lenses by email (sales@doriclenses.com) to obtain a copy of this application note. DANGER! The LISER &...

  • Page 4: Safety Labels

    Figure 1.1: Safety Labels 1.4 Activation Safety Features The drivers for all Doric Lenses light sources come with a number of safety features. These are built into the driver circuits, as shown in the block diagram (Fig. 1.2). Figure 1.2: Safety feature block diagram •...

  • Page 5: Emission Indicator

    – Connect the Interlock Circuit in series with the Interlock Plug so the circuit may function properly. • The Current Driver sends current to any connected light source. If the Key is absent or the Interlock Plug has an open circuit, it cannot receive signals from the micro-controller, preventing it from sending out current. 1.5 Emission Indicator For light sources emitting invisible laser radiation, a dedicated LED indicator is ON when the driver is outputting an electrical current.

  • Page 6: Overview

    /sr/nm) sources are required. In order to increase the spectral bright- ness, the “white” LED operating principle must be scaled in term of pump power. The power scaling first requires a higher brightness pump source emitting blue light. In the Doric LISER light source, high power blue laser diodes (LDs) emitting at 450 nm are used to provide a much smaller pumped volume of the Ce:YAG crystal.
  • Page 7 Figure 2.1: Output Power Spectral Density of a LISER Fiber Light Source using 200 µm, 0.53 NA Fiber Chapter 2. Overview...

  • Page 8: Overview Of The Liser Tm & Led/Ld Light Source

    • The USB port allows the user to connect the LISER to a computer using a USB-A/USB-B cable. This allows the driver to be controlled using Doric Neuroscience Studio. • The Interlock connector plug allows the user to connect the LISER to a safety interlock system.

  • Page 9: Overview Of The Bandpass Filter For Liser Tm

    2.3 Overview of the Bandpass Filter for LISER Considering the very broad spectrum of the LISER fluorescence, it is often required to select a specific part of the output spectrum using an optical bandpass filter. The light source contains a Removable Filter Holder that can accept filters with an outside diameter of 25.4 mm and maximum thickness of 5 mm.

  • Page 10: Operations Guide

    Operations Guide 3.1 Getting Started The procedure below should be followed carefully. There are several safety measures to take into account to ensure safe and proper use of the LISER & LED/LD Light Source. 1. Connect the Interlock plug to the driver. The system CANNOT be operational if the safety interlock circuit is open.
  • Page 11 file located on the Doric USB memory stick supplied with the LISER & LED/LD Light Source and follow the on-screen instructions (help is also available in the Doric Neuroscience Studio User Manual, which can be downloaded on our Website, section SUPPORT).

  • Page 12: Fc Connector Installation

    3.2 FC Connector Installation 1. Clean the optical fiber connector before insertion. Use isopropanol and a lint-free wipe. 2. With an FC connector, the connector key must be oriented to enter within the receptacle slot to ensure proper connection (Fig. 3.2). Figure 3.2: FC connector, Fiber Installation To reduce the risk of eye injury, it is sound practice to NOT CONNECT/DISCONNECT OPTICAL FIBERS...

  • Page 13: Doric Neuroscience Studio

    Doric Neuroscience Studio Doric Light Sources can be controlled by the Doric Neuroscience Studio. These include LED Modules, Laser Diode Modules and LISER Light Source . The interface is separated into two main sections, Control & settings and the Acquisition View. Each light source driver has a number of Channels, each one controlling a light source of its given type.
  • Page 14 (fix current), External TTL (external digital command), External Analog (external analog command), Square Se- quence(s) (internal digital command), and Complex Sequences(s) mode (internal analog command). Each mode enables different options of the Sequence Option section that are explained in more detail in section 4.1.3. Chapter 4. Doric Neuroscience Studio...
  • Page 15 BNC input. The following input pulse (when Triggered, Fig. 4.6a) or falling edge (when Gated, Fig. 4.6b) will stop the sequence and the sequence will restart from the beginning when the next rising edge is received. When the sequence is completed, it will restart with the next input pulse. Chapter 4. Doric Neuroscience Studio...
  • Page 16 Figure 4.4: Pause Sequence Mode (a) Triggered Non-Repeatable Sequence (b) Triggered Repeatable Sequence (c) Gated Non-Repeatable Sequence (d) Gated Repeatable Sequence Figure 4.5: Continue Sequence Mode (a) Triggered Repeatable Sequence (b) Triggered Gated Sequence Figure 4.6: Restart Sequence Mode Chapter 4. Doric Neuroscience Studio...
  • Page 17 The External Analog mode is used to drive the Light Source in function of the analog voltage used as input. The input voltage may varies between 0 V and 5 V and the intensity will follow the variations between 0 mA and the maximum current. Chapter 4. Doric Neuroscience Studio...
  • Page 18 8. The Total Duration shows the total expected duration of the pulse sequence. Should the duration be infinite, the box will display . If there is an error in parameter selection, this box will turn red and display what is the error (see Figure 4.8b). Chapter 4. Doric Neuroscience Studio...
  • Page 19 5. The Active Time box displays the total duration of the pulse. While the Smoothing option is active, the Time ON is fixed at this value. 6. The OK button save the changes of the shape of the pulses. The Cancel button discard the changes. Both buttons close the window. Chapter 4. Doric Neuroscience Studio...
  • Page 20 10. The Total Duration displays the total time of the experiment. The different values can be Inf for infinite, a valid time value or Err if the Time ON value is greater than the Period. Chapter 4. Doric Neuroscience Studio...

  • Page 21: Control Ans Settings

    Should the temperature be too low, the temperature will appear in blue. Time Series Figure 4.12: Time Series Window • The Number of series sets the number of times that the sequence will be repeated, with a minimum of 1. Chapter 4. Doric Neuroscience Studio...
  • Page 22 3. The Save Configuration button is used to save the Light Source configuration in a .doric format. 4. The Load Configuration button allows a Light Source configuration in .doric format to be loaded. Recorded data files also contains the configuration used during the experiment and this configuration can be loaded using this button.

  • Page 23: Acquisition View

    1. The Controls View displays all elements to control/configure the channel. An overview this part will be done in section 4.3.2. 2. The Graph View displays a preview of the pulse sequence for Light Source Channels. Chapter 4. Doric Neuroscience Studio...
  • Page 24 4.1.2. 7. The Progression box displays the progression of the pulse sequence. The advancement of the sequence is displayed in % on the Progression Bar, and in hh:mm:ss:zzz format on the Time Elapsed box. Chapter 4. Doric Neuroscience Studio...

  • Page 25: Specifications

    Specifications Table 5.1: Specifications of the LISER & LED/LD Light Source Specification Value Note Power supply 110 - 240 VAC, 50 - 60 Hz DC Power supply 12 VDC, 150 W Mass 2.6 kg Dimensions Width 20 cm Including connectors Depth 15 cm Including connectors...
  • Page 26 Table 5.2: Software Specifications of the LISER & LED/LD Light Source Specification Value Note Current adjustment steps 1 mA Modulation minimum frequency 0.01 Hz Internal complex mode : 0.000054 Hz Modulation maximum frequency 90 kHz -3 dB attenuation Minimum ON or OFF time 0.005 ms Internal complex mode : 2 ms Maximum ON or OFF time...

  • Page 27: Support

    6.2 Warranty This product is under warranty for a period of 12 months. Contact Doric Lenses for return instructions. This warranty will not be applicable if the unit is damaged or needs to be repaired as a result of improper use or operation outside the conditions stated in this manual.
  • Page 28 © 2022 DORIC LENSES INC 357 rue Franquet - Quebec, (Quebec) G1P 4N7, Canada Phone: 1-418-877-5600 - Fax: 1-418-877-1008 www.doriclenses.com...

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Liser & ld seriesLiser & ld 450Liser

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