THORLABS NPL Series User Manual
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THORLABS NPL Series User Manual

Nanosecond pulsed lasers
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NPL Series of
Nanosecond Pulsed
Lasers
User Guide
 
 
 

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Summary of Contents for THORLABS NPL Series

  • Page 1   NPL Series of Nanosecond Pulsed Lasers User Guide      ...

  • Page 2: Table Of Contents

    6.3.  NPL41C, NPL45C, NPL52C, and NPL64C ..............18  Chapter 7  Maintenance, Repair, and Fuses  ..................19  7.1.  Maintenance ........................19  7.2.  Troubleshooting ......................19  Chapter 8  Declaration of Conformity  ....................20  Chapter 9  Thorlabs Worldwide Contacts  ..................21       ...

  • Page 3: Chapter 1 Introduction

    1.2. Description The NPL series of pulsed diode lasers are designed to provide a convenient, turn-key source of nanosecond pulse trains. Model options are summarized in the table below and include different typical emission wavelengths, output powers, repetition frequency range, and fixed or adjustable pulse widths.
  • Page 4 Nanosecond Pulsed Lasers Chapter 1: Introduction The only differences in the back panels of the A, B, and C versions, shown below, are the pulse width and repetition rate controls. A versions have neither, B versions have both pulse width and repetition rate control, and C versions have only pulse width control.

  • Page 5: Chapter 2 Safety

    If equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. Only with written consent from Thorlabs may changes to single components be carried out or components not supplied by Thorlabs be used.

  • Page 6: Chapter 3 Quick Start Guide

    After screwing the ECM225 clamps to any convenient base or post, such as one of Thorlabs’ TR series optical posts, snap the clamps on to the bottom side of the NPL housing. Firmly tighten the clamps using the locking screws. Figure 4 shows an example of an NPL laser head mounted on an optical table.

  • Page 7: Chapter 4 Operation

      Figure 5 Block Diagram of the NPL Series Laser Head 4.2. Power Power is supplied by the external, +15 V, wall-mounted DS15 Power Supply included with the unit and shown in the left image of Figure 6.

  • Page 8: Interlock Circuit

    The shorting device (interlock pin) installed in all units shipped from Thorlabs performs this function. Leave the shorting device installed unless using an external safety circuit or other type of remotely controlled switch to enable laser output.

  • Page 9: Pulse Widths And Repetition Rates

    Pulse Widths and Repetition Rates The models of the NPL series with item numbers ending in A and C require a user trigger input to the SMA connector on the back panel. The A version supports rates up to 10 MHz. The C version supports rates up to 50 kHz. The slowest supported edge transition time for the trigger signal is 1 ms.

  • Page 10: Chapter 5 Specifications

    Nanosecond Pulsed Lasers Chapter 5: Specifications Chapter 5 Specifications 5.1. Optical Specifications Item # NPL64A NPL41B NPL45B NPL49B NPL52B NPL64B Center Wavelength, 640 nm 405 nm 450 nm 488 nm 520 nm 640 nm Typical ± 10 nm ± 10 nm ±...

  • Page 11: Trigger Specifications

    Nanosecond Pulsed Lasers Chapter 5: Specifications 5.2. Trigger Specifications Parameter Specification Coupling AC Coupled Item #s Ending in A or B 10 MHz Max Input Frequency Item #s Ending in C 50 kHz Input Voltage 200 mV to 2 V Input Impedance 5 kΩ...

  • Page 12: Typical Pulse Width Vs. Control Setting

    Nanosecond Pulsed Lasers Chapter 5: Specifications 5.4. Typical Pulse Width vs. Control Setting Typical Pulse Width vs. Control Setting NPL41C NPL41B 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Pulse Width Setting Figure 9 Typical pulse widths for the NPL41C and NPL41B.
  • Page 13 Nanosecond Pulsed Lasers Chapter 5: Specifications 5.5.2. NPL41B NPL41B Typical Pulses Pulse Width 6 ns 8 ns 12 ns 18 ns 30 ns 37 ns Time (ns) Figure 11 Typical pulses for the NPL41B. The Pulse Width control on the back panel allows the pulse width to be adjusted to one of 16 settings.
  • Page 14 Nanosecond Pulsed Lasers Chapter 5: Specifications 5.5.4. NPL49B NPL49B Typical Pulses Pulse Width 6 ns 8 ns 12 ns 20 ns 31 ns 39 ns Time (ns) Figure 13 Typical pulses for the NPL49B. The Pulse Width control on the back panel allows the pulse width to be adjusted to one of 16 settings.
  • Page 15 Nanosecond Pulsed Lasers Chapter 5: Specifications 5.5.6. NPL64B NPL64B Typical Pulses Pulse Width 4 ns 11 ns 19 ns 30 ns 38 ns Time (ns) Figure 15 Typical pulses for the NPL64B. The Pulse Width control on the back panel allows the pulse width to be adjusted to one of 16 settings.
  • Page 16 Nanosecond Pulsed Lasers Chapter 5: Specifications 5.5.8. NPL45C NPL45C Typical Pulses 1800 1600 Pulse Width 1400 6 ns 1200 31 ns 1000 56 ns 80 ns 105 ns 129 ns Time (ns) Figure 17 Typical pulses for the NPL45C. The Pulse Width control on the back panel allows the pulse width to be adjusted to one of 16 settings.
  • Page 17 Nanosecond Pulsed Lasers Chapter 5: Specifications 5.5.10. NPL64C NPL64C Typical Pulses 1200 1000 Pulse Width 5 ns 31 ns 54 ns 80 ns 104 ns 129 ns Time (ns) Figure 19 Typical pulses for the NPL64C. The Pulse Width control on the back panel allows the pulse width to be adjusted to one of 16 settings.

  • Page 18: Chapter 6 Mechanical Drawings

    Nanosecond Pulsed Lasers Chapter 6: Mechanical Drawings Chapter 6 Mechanical Drawings 6.1. NPL64A 14.0 mm (0.55") 22.9 mm (0.90") 17.8 mm 2.5 mm Phono-Type (0.70") SM05 (0.535"-40) Interlock Jack Series Internal Thread Power Key Laser Enabled Switch C340TMD-B 6.4 mm Light Lens (0.25")

  • Page 19: Npl41B, Npl45B, Npl49B, Npl52B, And Npl64B

    Nanosecond Pulsed Lasers Chapter 6: Mechanical Drawings 6.2. NPL41B, NPL45B, NPL49B, NPL52B, and NPL64B Figure 21 Mechanical Drawing for Item Numbers Ending in B   Rev. F, January 7, 2019 Page 17...

  • Page 20: Npl41C, Npl45C, Npl52C, And Npl64C

    Nanosecond Pulsed Lasers Chapter 6: Mechanical Drawings 6.3. NPL41C, NPL45C, NPL52C, and NPL64C Figure 22 Mechanical Drawing for Item Numbers Ending in C Page 18 TTN122959-D02...

  • Page 21: Chapter 7 Maintenance, Repair, And Fuses

    Do not use acetone, chemical solvents, or harsh cleaning solutions, and do not spray cleaning solutions directly onto the unit. See Section 7.2 for advice on cleaning the lens. The NPL does not contain any user-serviceable components. If malfunctions occur, please contact Thorlabs’ technical support (techsupport@thorlabs.com). Do not disassemble the unit.

  • Page 22: Chapter 8 Declaration Of Conformity

    EC, and are not dissembled or contaminated. Contact Thorlabs for more information. Waste treatment is your own responsibility. “End of life” units must be returned to Thorlabs or handed to a company specializing in waste recovery. Do not dispose of ANNEX I the unit in a litter bin or at a public waste disposal site.

  • Page 23: Chapter 9 Thorlabs Worldwide Contacts

    Nanosecond Pulsed Lasers Chapter 9: Thorlabs Worldwide Contacts Chapter 9 Thorlabs Worldwide Contacts USA, Canada, and South America UK and Ireland Thorlabs, Inc. Thorlabs Ltd. 56 Sparta Avenue 1 Saint Thomas Place Newton, NJ 07860 Ely CB7 4EX Great Britain...
  • Page 24      ...

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