THORLABS LDM9LP Operating Manual
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THORLABS LDM9LP Operating Manual

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LDM9LP
Pigtailed Laser Mount
Operating Manual

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Summary of Contents for THORLABS LDM9LP

  • Page 1 LDM9LP Pigtailed Laser Mount Operating Manual...

  • Page 2: Table Of Contents

    5.4.  Maintaining the LDM9LP .......... 16  Making Safety Interlock Connections ......17     Troubleshooting ............. 18     Specifications ..............19     8.1.  RF Modulation Charts .......... 20  8.2.  Thermistor Data ............ 22  Mechanical Drawing ............23     Regulatory ............... 24     Thorlabs Worldwide Contacts........25    ...

  • Page 3: Warning Symbol Definitions

    Pigtailed Laser Mount Chapter 1: Warning Symbol Definitions Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Symbol Description Direct Current Alternating Current Both Direct and Alternating Current Earth Ground Terminal Protective Conductor Terminal Frame or Chassis Terminal Equipotentiality...

  • Page 4: Safety

    Pigtailed Laser Mount Chapter 2: Safety Safety WARNING This unit must not be operated in explosive environments WARNING Avoid Exposure – Laser Radiation Emitted from apertures WARNING Observe ESD Handling Precautions Page 2 TTN027954-D02...

  • Page 5: Description

    Clamshell Design Eliminates Thermal Gradients Across Diode  Bias-T Adapter for RF Modulation of Laser Current >200 kHz Thorlabs' LDM9LP is an LD and TEC mount designed for use with all of our 3- and 4-pin pigtailed diodes . The compact housing protects the pigtail from physical damage, while also offering excellent thermal characteristics.
  • Page 6 Pigtailed Laser Mount Chapter 3: Description LDM9LP Contents:  Pigtail Mount  1.5mm Hex Key  Operating Manual Supported Pin Configurations Case Case Case Style A Style C Style B Case Case Case Case Style E Style G Style H...

  • Page 7: Setup

    Pigtailed Laser Mount Chapter 4: Setup Setup 4.1. General Remove the two M2 screws, from the protection cover and remove the cover. Remove the four M2 screws, that fix the upper cooler shell, and remove the upper shell. Remove the two M2 screws fixing the laser mounting plate to the cooler and pull out the plate from the connector.
  • Page 8 C, D, E, or H, set the STYLE jumper to the lower two pins. For pin code G, set the jumper to the upper two pins. The BYPASS jumper should be set only if the laser is modulated via the LD DRIVER input on the LDM9LP. Please refer to the table below. Operation Mode Bypass Jumper...
  • Page 9 Pigtailed Laser Mount Chapter 4: Setup Based on the pin configuration used, set the LD and PD switches on the side of the LDM9LP according to the diagram below. Case Case Style A Style B Case Case Style E Style C...
  • Page 10 Pigtailed Laser Mount Chapter 4: Setup Thread the two M2 socket head screws into the pigtail flange, securing it to the mounting flange. Next, replace the upper cooler shell and tighten the four M2 socket head screws. Lastly, reattach the protective cover using two M2 socket head screws.
  • Page 11 The other laser and photodiode pin will be isolated from the case. The LDM9LP was designed to operate the laser case at ground potential, therefore this common pin will be inserted into either of the holes marked ‘G’...

  • Page 12: Special Note For 4-Pin Laser Diodes

    4.2. Special Note for 4-pin Laser Diodes The LDM9LP also supports 4-pin laser diodes. Insert the laser into the 4-pin socket and note which laser pin is in the 12 o’clock position (laser anode or cathode). Also, note which photodiode pin is in the 6 o’clock position (anode or cathode).

  • Page 13: Special Note For Laser Diodes Without A Monitor Photodiode

    Special Note for Laser Diodes without a Monitor Photodiode Laser diodes without a monitor photodiode will also work with the LDM9LP. The laser diode pins must be positioned between the LD and G positions. Some 2 pin packages will not align with the laser diode socket, but 3 pin versions can be mounted similar to typical laser diodes with photodiodes.

  • Page 14: Using A Third-Party Laser Controller

    Signal Description This pin is the input to the LD Status indicator and interlock Interlock and circuits. When using Thorlabs’ LDC controllers, no external Status Pin circuitry is required. To use these features with third-party (LDC Specific) controllers, please refer to page 16.

  • Page 15: Tec Controller Connection

    Using Thorlabs’ TED Series TEC Controllers:  The LDM9LP is compatible with all Thorlabs TED series temperature controllers and ITC series combination controllers (LD and TEC). The TED series is shipped with a mating DB9 cable that plugs directly into the controller and laser mount.

  • Page 16: Tec Lockout And Ground Jumpers

    Pigtailed Laser Mount Chapter 4: Setup 4.7. TEC Lockout and Ground Jumpers Two jumpers, JMP1 and JMP2, are located under the cover on the main PCB assembly. Remove the cover plate by removing the four M2 screws securing the cover plate. Locate the jumper “JMP1”...

  • Page 17: Operation

    5.1. General Once the laser is mounted in the LDM9LP and a Laser Diode Current Controller and TEC Controller are connected, the device is ready to operate. Please refer to the operating instructions for the laser and temperature controller for specific operating instructions.

  • Page 18: Status And Interlocks

    5.4. Maintaining the LDM9LP There are no serviceable parts in the LDM9LP. The housing may be cleaned by wiping with a soft, damp cloth. If you suspect a problem with your LDM9LP, please call Thorlabs and an engineer will be happy to assist you.

  • Page 19: Making Safety Interlock Connections

    Making Safety Interlock Connections The LDM9LP is equipped with a Remote Interlock connector located on the side panel. In order to enable the laser source, a short circuit must be applied across the terminals of the Remote Interlock Connector. In practice this connection is made available to allow the user to connect a remote actuated switch to the connector (i.e., an open door indicator).

  • Page 20: Troubleshooting

    TED Series TEC controller must be enabled first not enabled before the LDC Series laser controller can be enabled. If you still have problems or questions regarding the operation of your LDM9LP, please feel free to call Thorlabs and ask for Technical Support. Page 18...

  • Page 21: Specifications

    Pigtailed Laser Mount Chapter 8: Specifications Specifications Performance Specifications Lasers Supported Thorlabs LPS, LPS-PM, and LPM Series Maximum Laser Current Laser Pin Configurations A, B, C, D, E, G, H (Figure 1) RF Modulation Frequency (Modulate low frequencies through LD Controller) >200 kHz...

  • Page 22: Rf Modulation Charts

    8.1. RF Modulation Charts RF modulation of the LDM9LP can be accomplished in one of two ways. For low frequencies (below ~200 kHz), the RF modulator should be connected to the LD controller. Figure 9 shows the performance of Thorlabs’ LDC202C and ITC4005 when used with the LDM9LP and RF modulation.
  • Page 23 Pigtailed Laser Mount Chapter 8: Specifications RF Modulation Through SMA Connector on LDM9LP Rev C, September 5, 2018 Page 21...

  • Page 24: Thermistor Data

    Pigtailed Laser Mount Chapter 8: Specifications 8.2. Thermistor Data Thermistor Plot A thermistor is a resistor with a negative temperature coefficient (as for this, also known as NTC). It’s resistance decreases exponentially with temperature. The significant change of resistance with temperature predestines a NTC for temperature measurements.

  • Page 25: Mechanical Drawing

    Pigtailed Laser Mount Chapter 9: Mechanical Drawing Mechanical Drawing Rev C, September 5, 2018 Page 23...

  • Page 26: Regulatory

    Waste Treatment is Your Own Responsibility If you do not return an “end of life” unit to Thorlabs, you must hand it to a company specialized in waste recovery. Do not dispose of the unit in a litter bin or at a public waste disposal site.

  • Page 27: Thorlabs Worldwide Contacts

    Pigtailed Laser Mount Chapter 11: Thorlabs Worldwide Contacts Chapter 11 Thorlabs Worldwide Contacts For technical support or sales inquiries, please visit us at www.thorlabs.com/contact for our most up-to-date contact information. USA, Canada, and South America UK and Ireland Thorlabs, Inc. Thorlabs Ltd.
  • Page 28 www.thorlabs.com...

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