Stabilized Tungsten Light Source Chapter 1 Introduction 1.1. Warning Symbol Definitions Below is a list of warning symbols you may encounter in this manual or on your device. Danger, Warning, or Caution Hot Surface Shock Warning The CE/UKCA markings on the product are the manufacturer's declaration that the product complies with the essential requirements of the relevant European health, safety, and environmental protection legislation.
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Stabilized Tungsten Light Source Chapter 1: Introduction Caution: Hot Surface The light source housing can get very hot during operation. Extensive contact may cause burning. The temperature of the lamp may reach a few hundred ˚C during operation. Always wait for at least 30 minutes for the lamp module to cool down before performing a lamp module replacement.
Stabilized Tungsten Light Source Chapter 2: Product Overview Chapter 2 Product Overview 2.1. Planck's Law and Black Body Radiation A black body is an object that absorbs all incident electromagnetic radiation (e.g. light), no light passes through or is reflected. However, despite the name, a black body will also emit electromagnetic radiation.
Stabilized Tungsten Light Source Chapter 2: Product Overview 2.3. Output Spectrum The SLS201L tungsten halogen light source generates visible to IR output as far as 2600 nm, with a color temperature of 2796 K. Figure 3 shows a typical output spectrum. Figure 3...
1 lens. The SLS201L features a quick release mechanism allowing users to easily remove and put back the fiber coupler, switching between a free space light source and a fiber coupled one.
Optional Collimator Thorlabs also provides an optional collimator (not included in the package) for SLS201L. As shown in Figure 5, the collimator works as an alternative to the fiber coupler. It utilize the same focusing lens as in the fiber coupler to focus the roughly collimated beam from the 1 lens inside the light source main body into a 1 mm pinhole.
The SLS201L light source is equipped with an internal feedback loop and therefore can ensure a constant intensity, low noise and long life span. The principle of operation is depicted in the block diagram below. The optical intensity is measured by an internal photodiode, which feeds its monitor signal to the controller unit.
Figure 7 (a). It also has two 1/4"-20 (M6) threaded mounting hole on the bottom, which are compatible with Thorlabs standard optical posts and post holders, enabling it to be mounted on a breadboard or optical as shown in Figure 7 (b).
After setting up the light source on a working surface, follow the steps below: Figure 8 Switching on SLS201L 1. Connect the power supply to the 4-pin "Power In" plug on the back panel of the light source; 2. Rotate the threaded cap on the connector to lock it;...
The SLS201L features a quick release mechanism allowing users to easily install and remove the fiber coupler, switching between a free space light source and a fiber coupled one. The great mechanical repeatability of the...
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After remove the fiber coupler, users can see the collimating lens in the light source and get access to a roughly collimated beam. The SLS201L light source is shipped with a 1 m long, SMA to SMA fiber patch cable with below specs:...
Adjust Fiber Adapter Position 3.7. Collimating Accessory (Optional) Thorlabs also offer the SLS201C collimator for SLS201L separately as an optional accessory for the light source. They are available on Thorlabs website: www.thorlabs.com The collimator provides a well collimated beam but with a reduced power level.
Application Ideas There are four 4-40 threaded holes on the front panel of the light source house to allow the integration of Thorlabs’ 30 mm Cage System. The SM1 internal thread in the front lens tube also provides compatibility with Thorlabs’...
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Stabilized Tungsten Light Source Chapter 3: Operation Thorlabs offers a SLS251 pre-aligned lamp replacement module for SLS201L light source. The replacement modules are available on www.thorlabs.com. To replace the lamp module, place the light source upside down to reveal the underside of the unit. Using the included 5/64" (2 mm) hex key, remove the four screws holding on the cavity cover and the screw closest to the end of the unit from both the left and right sides.
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Stabilized Tungsten Light Source Chapter 3: Operation Unplug Figure 16 Unplug the lamp module connector. Carefully pull out the old module by sliding the wire and attached plug out. Watch out for the PD signal wires when pulling out the old module since they may get in the way.
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Stabilized Tungsten Light Source Chapter 3: Operation Slide the new lamp module in the lamp chamber. Pass the wire and plug through the hole in the central wall first and then insert the module. The two dowel pins should slide smoothly into the holes in the wall. While pressing the lamp against the central wall, screw the cap screw back in using the included 1.5 mm hex key.
Stabilized Tungsten Light Source Chapter 4: Specifications Chapter 4 Specifications Item # SLS201L(/M) Wavelength Range 360 – 2600 nm Peak Wavelength 1000 nm Color Temperature 2796 K Color Temperature Stability ±15 K Lamp Electrical Power Fiber Coupled Output Power (Typ.) 10 mW Free Space Output Power (Typ.)
Stabilized Tungsten Light Source Chapter 6: Certifications and Compliances Chapter 6 Certifications and Compliances This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
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 the unit in a litter bin or at a public waste disposal site.
Stabilized Tungsten Light Source Chapter 8: Thorlabs Worldwide Contacts Chapter 8 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.
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