Laser-Pumped Phosphor Broadband Light Source


  • -10 dB Wavelength Range: 490 to 625 nm
  • Open-Loop, Closed-Loop, and External Trigger Modes
  • Long 10 000 Hour Lifespan
  • SMA905 Fiber-Coupled Output

M112L01

Ø200 µm, 0.22 NA,
MM Fiber Patch Cable

SLS701

Laser-Pumped Phosphor Light Source
(Fiber Patch Cable Sold Separately)

The settings and controls on the front panel are also accessible remotely via the software GUI.

U.S. Patent
10,317,046

Related Items


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Laser-Pumped Phosphor Source Filter
Click to Enlarge
The side panel features a filter holder for a Ø1" or Ø25 mm spectral filter with a maximum thickness of 6.5 mm.
Laser-Pumped Phosphor Source Spectrum
Click to Enlarge

Click Here for Raw Data
The measured spectral power distribution for the SLS701 Light Source. The blue-shaded region indicates the lamp's -10 dB power operating wavelength range.

Features

  • Laser-Pumped Phosphor Emission Over 490 - 625 nm Wavelength Range
  • 25 mW Output (Open-Loop Mode)
  • 0.03% Per Hour and <0.1% Per °C Output Power Drift (Closed-Loop Mode)
  • Accepts In-Line Ø1" or Ø25 mm Spectral Filter
  • SMA905 Fiber-Coupled Output (Fiber Patch Cable Sold Separately)
  • Location-Specific Power Cord Included

Thorlabs' SLS701 Laser-Pumped Phosphor Light Source (U.S. Patent 10,317,046) provides stable illumination from 490 nm to 625 nm. The internal 445 nm pump laser is focused into a very small spot on a single-crystal phosphor, generating incoherent, broadband emission with a small etendue. This results in laser-level, high-radiance output at the fiber connector. A photodiode measures off-axis emission to create a feedback loop for closed-loop operation and increased power stability over time and temperature changes. The emitted light is coupled into an SMA905 bulkhead for connecting to a fiber patch cable. Refer to the diagram below for additional details. A patch cable is not included; recommended cables are available for purchase below.

The front panel controls and LCD screen offer full control of the source power, light intensity, open- and closed-loop operation modes, and enabling or disabling external trigger inputs. The back panel features BNC connectors for external triggering and power modulation inputs, as well as a monitor output and USB port. The software GUI available for download on the Software tab offers full remote control mirroring the functionality available on the front panel. Command line operation is also available using USB connectivity and a terminal emulator or a user-created program.

The right side panel features a filter tray for Ø1" or Ø25 mm spectral filters selected by the user, as shown in the photo to the upper right. This optional filter is located in the beam path just before the fiber coupling lens, as illustrated in the diagram below.

Laser-Pumped Phosphor Source Architecture
Click for Details
Architecture of the SLS701 Laser-Pumped Phosphor Light Source
Key Specificationsa
Wavelength Range FWHM: 495 - 575 nm
-10 dB Power: 490 - 625 nm
Maximum Brightness >7 W/mm2/sr (50 µm, 0.22 NA Fiber)b
Output Power 25 mW (Open Loop)c
Modulation Bandwidth 160 kHz (Open Loop)
2 kHz (Closed Loop)
Thermal Drift <0.1%/°C (Closed Loop)
Drift/Hour 0.03% (Closed Loop)
Device Lifetime 10 000 Hoursd
  • Refer to the Specs tab for Complete Specifications
  • Calculated value based on power measurement with M14L01 multimode fiber patch cable.
  • Typical level at beginning of lifetime; measured with M112L01 multimode fiber patch cable.
  • Up to 50% power drop from initial value.
Item # SLS701
Wavelength Range FWHM: 495 - 575 nm
-10 dB Power: 490 - 625 nm
Output Coupling Fiber Coupled, SMA905 Connector
Maximum Brightness >7 W/mm2/sr (50 µm, 0.22 NA Fiber)a
Output Power 25 mW (Open Loop)b
Modulation Bandwidth 160 kHz (Open Loop)
2 kHz (Closed Loop)
Output Non-Linearity <2%
Stability 0.05% (Closed Loop)
Thermal Drift <0.1%/°C (Closed Loop)
Drift/Hour 0.03% (Closed Loop)
Device Lifetime 10 000 Hoursc
Power Supply Voltage 100 - 240 VAC, 50 - 60 Hz
Operating Temperature Range 0 to 35 °C
Storage Temperature Range -15 to 65 °C
Dimensions (L x W x H) 346.9 mm x 289.4 mm x 150.0 mm
(13.66" x 11.39" x 5.91")
Mass (Weight) 5.6 kg (12.3 lbs)
  • Calculated value based on power measurement with M14L01 multimode fiber patch cable.
  • Typical level at beginning of lifetime; measured with M112L01 multimode fiber patch cable.
  • Up to 50% power drop from initial value.
SLS701 Front Panel
Click to Enlarge
SLS701 Back Panel
SLS701 Front Panel
Click to Enlarge
SLS701 Front Panel
Front Panel Back Panel
Callout Description Callout Description
F1 Operation Mode Switch B1 BNC Port for External Triggering:
5 V CMOS
F2 Output Power Adjustment Knob B2 BNC Port for Modulation Input: 0 to 5 V
F3 External Port Mode Switch B3 BNC Port for Monitor Out: 0 to 5 V
F4 Light On/Off Button B4 USB Type-B Port
F5 Light On/Off State LED B5 Main Cooling Fan
F6 SMA Fiber Port B6 AC Power Cord Connector
F7 Power Button with LED Indicator B7 Fuse Drawer
Recommended System Requirements
Operating System Windows® 7 SP1 (32-Bit, 64-Bit)
with KB3020369 and KB3125574;
Windows 10 (32-Bit, 64-Bit);
Windows 11 (64-Bit)
Processor (CPU) 1 GHz or Higher
Memory (RAM) 2 GB
Hard Drive 25 MB (Min) of Available Disk Space
Interface Free USB 2.0 Port

Software

Version 1.1.1

This software package provides a GUI to control the SLS701 Light Source. To download, click the button below.

Software Download

SLS701 GUI Software

The SLS701 GUI Software provides full control over the SLS701 Laser-Pumped Light Source, allowing the user to power the source on and off, adjust the intensity, toggle the operation mode between open and closed loop, and activate/deactivate the ports on the rear panel.


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Laser-Pumped Phosphor Broadband Light Source

  • 445 nm Fiber-Laser-Pumped Phosphor Light Source
  • 490 - 625 nm Wavelength Range (-10 dB Power)
  • Open-Loop, Closed-Loop, and External Trigger Modes
  • Front Panel, Software GUI, or Command Line Operation

The SLS701 Laser-Pumped Phosphor Light Source outputs fiber-coupled light from 490 nm to 625 nm (-10 dB power). The source can be fully operated using the front panel LCD and controls or remotely via the USB connector on the rear. Remote control can be performed using a PC with the software GUI or via a command line interface. External triggering, modulation input, and monitor output are available on the rear panel. A fiber patch cable is not included; a variety of recommended compatible cables are available below.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
SLS701 Support Documentation
SLS701Laser-Pumped Phosphor Light Source, 490 - 625 nm
$10,710.00
Today

Recommended Fiber Patch Cables

Recommended Fiber Patch Cables
Item # NA Core Size Output Powera Fiber Type
M14L01 0.22 Ø50 µm 2.5 mW Low OH MM Fiber
M112L01 0.22 Ø200 µm 25 mW Solarization-Resistant
MM Fiber
M113L01 0.22 Ø400 µm 33 mW
M38L01 0.39 Ø200 µm 60 mW Low OH MM Fiber
M28L01 0.39 Ø400 µm 107 mW
  • Typical value at beginning of lifetime.

The SLS701 light source does not include a fiber patch cable, but it is aligned and optimized for use with an M112L01 fiber patch cable. The M112L01 is a solarization-resistant multimode fiber patch cable that has SMA connectors, a Ø200 µm core, and 0.22 NA. Other fiber patch cables with SMA connectors can also be used with the SLS701 light source, but output power may vary. The table to the right provides the typical output powers for the source when used with a variety of different fiber patch cables.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
M14L01 Support Documentation
M14L01Ø50 µm, 0.22 NA, SMA-SMA Fiber Patch Cable, Low OH, 1 m Long
$75.96
Today
M112L01 Support Documentation
M112L01Ø200 µm, 0.22 NA, SMA-SMA Solarization-Resistant MM Fiber Patch Cable, 1 m Long
$113.48
Today
M113L01 Support Documentation
M113L01Ø400 µm, 0.22 NA, SMA-SMA Solarization-Resistant MM Fiber Patch Cable, 1 m Long
$131.45
Today
M38L01 Support Documentation
M38L01Ø200 µm, 0.39 NA, SMA-SMA Fiber Patch Cable, Low OH, 1 m Long
$86.19
Today
M28L01 Support Documentation
M28L01Ø400 µm, 0.39 NA, SMA-SMA Fiber Patch Cable, Low OH, 1 m Long
$106.65
Today