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Compact Laser Modules with Phono Jack
Collimated Laser Module
Adjustable-Focus Laser Module Mounted in a KM100 Using an AD11NT Adapter
Elliptical or Round Beam Profiles
The CPS1 includes both a USB-to-Micro-USB cable and a custom USB-to-Phono cable.
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CPS450 Laser Diode Module Held in a KAD11NT Unthreaded Kinematic Adapter and Mounted into an FMP1 Fixed Optic Mount
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CPS980S Laser Diode Module Held in an AD8F SM1-Threaded Adapter and Mounted into an LM1XY XY Translation Mount
These phono-jack-equipped laser modules are available in either collimated or adjustable-focus varieties and provide output powers ranging from 0.85 mW to 4.5 mW (laser safety Class 2 or 3R depending on the model). Each module has an output beam shape that is either elliptical or round, as indicated in the tables below. These modules, which offer single-spatial-mode output and a compact cylindrical housing, are ideal for use as alignment lasers in optical systems.
For single-frequency applications, our collimated 850 nm VCSEL Module produces a single-wavelength output and a round, Gaussian beam shape similar to that of a point source. Its narrow linewidth produces a spectra that contains no sidebands, but this comes at the expense of a lower total power output.
All CPS laser modules are driven in constant-power mode, with feedback from an internal photodiode used to maintain the optical output power. As these products are not thermally stabilized, their optical output power may fluctuate slightly during operation.
Power Supply Options
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Portable 5 V Battery Pack Available
Alternatively, a male 2.5 mm phono plug is included with each CPS laser module for customers who wish to wire their own power supply. These modules have either an 18" (457 mm) or 24" (610 mm) long cable with a female 2.5 mm phono socket for connection to a power supply.
Thorlabs also offers a Mini-Series kinematic mount for Ø11 mm laser modules. This kinematic mount is among our smallest kinematic mounts available and features 4-40 (M3) taps for mounting onto our Ø6 mm Mini-Series posts.
In addition, we offer mounting kits - which include a KM100T kinematic mount, post, post holder, base, and 5 VDC power supply - for an all-in-one mounting solution for these modules. Please note that the knurled knob used for focus adjustment on the CPS635F, CPS650F, and CPS670F laser modules is too large for the mounting adapter bore. This knob can be unthreaded to mount the diode module in the same manner as the collimated versions. Make sure to loosen the setscrews locking the knob in place before unthreading; not doing so can damage the threading. Alternatively, the module can be mounted by threading the cord and phono plug through the adapter first.
CPS Laser Power Connector
LDS5 and CPS1 Power Supply Connector
Laser Safety and Classification
Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina.
Safe Practices and Light Safety Accessories
Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below:
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Click Here for Raw Data
The CPS850V Collimated VCSEL Module has a single-wavelength output with a narrow linewidth. Graph above shows the typical spectrum taken at 20 °C, 25 °C, and 30 °C using a Thorlabs Optical Spectrum Analyzer. The apparent linewidth is limited by the measurement resolution, which is 7.5 GHz (0.25 cm-1). This data is typical and will vary for each module.
Mounting Adjustable Focus CPS Laser Diode Modules
These adapters are available for those wishing to mount the laser module housing into SM1 (1.035"-40) lens tubes, 30 mm cage systems, Ø1/2" posts, or Ø1/2" or Ø1" mounts. Please see the application photos in the Overview tab for more details. The AD8F and AD11F are also offered as part of a series of mounting kits; see below for details.
The KAD8F, KAD8NT, KAD11F, and KAD11NT Adapters provide ±6° of pitch and yaw adjustment. Two 80 TPI fine adjustment screws on the front plate of the adapter control the pitch and yaw position and can be turned using a 5/64" (2.0 mm) hex key.
Please note that the knurled knob used for focus adjustment on the CPS635F, CPS650F, and CPS670F laser modules is too large for the mounting adapter bore. This knob can be unthreaded to mount the module in the same manner as the collimated versions, as shown in the animation to the right. Please make sure to loosen the setscrews locking the knob in place before unthreading; not doing so can damage the threading. Alternatively, the module can be mounted by threading the cord and phono plug through the adapter first.
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MK11F Mounting a CPS635R Laser Diode Module
Thorlabs' Mini-Series Kinematic Mount for Cylindrical Components is our most compact solution for mounting the Ø11 mm laser modules sold above. This two-adjuster kinematic mount features a nominal 0.79" x 0.52" (20.0 mm x 13.2 mm) footprint, which is the same as our Mini-Series kinematic mirror mounts. Cylindrical components are secured at three points using a nylon-tipped locking screw and a double-bored mounting hole. Both the nylon-tipped setscrew and the two M2.5 x 0.20 adjuster screws accept a 0.050" (1.3 mm) hex key (not included).
For ease of adjustment, we recommend using the 0.050" hex key thumbscrews. We also offer a locking collar and spanner wrench for locking the adjuster screws in a desired position or for creating a hard stop.
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CPS650F Mounted on a CPS11K Kit
These Laser Module Mounting Kits contain all of the components needed to mount and power our laser modules (i.e., a power supply with a selectable line voltage of 115 V or 230 V, a location-specific power cable, and a hex key to secure the laser module to the mount). For Ø8 mm housings, choose the CPS08K(-EC) kit, and for Ø11 mm housings, choose the CPS11K(-EC) kit.
Please see the table in the upper right for a list of components included in each mounting kit. For alternate mounting options, please see our selection of mounting adapters above (adapters compatible with this kit must be externally SM1 threaded). For individual power supplies, including a 5 VDC external battery pack, see below.
LDS5 Pin Diagram
The LDS5 is a 5 VDC power supply that is ideal for use with our CPS laser modules. A 6 ft (183 cm) cable with a 2.5 mm phono plug extends from the body of the power supply for connection to a CPS module.
The power supply has a selectable line voltage of 115 or 230 V. A 120 VAC power cable is included with the LDS5, while the LDS5-EC comes with a 230 VAC power cable. To order this item with a different power cable, please contact tech support.
Thorlabs offers the CPS1 Battery Pack for powering our CPS laser modules and other USB-powered devices. The CPS1 battery pack outputs 5 V and offers 10 000 mAh capacity. A fully charged CPS1 battery pack can power any CPS laser module for at least 36 hours of continuous operation. The pack includes a USB-to-Micro-USB cable for charging and a custom USB-to-Phono cable for powering the CPS laser module. To activate the battery, simply push the power button once. The pack may be charged using standard 5 V USB chargers for portable devices or using a computer USB port. While the battery pack is charging, it can still supply power to an attached laser module.
The CPS1 Battery Pack also includes an LED flashlight adjacent to the micro-USB port. The flashlight is activated and deactivated by holding the power for two seconds.
When connecting the CPS Diode Module, the module and adapter should be connected first. Then the adapter cable should be plugged into the isolated power supply to avoid a short circuit in the phono jack. Please note that the USB adapter included with this battery pack is not intended to be used with power supplies that are not current-limited or isolated from ground, such as some computers or laptops.
Please note: Due to shipping restrictions for lithium ion cells, the CPS1 battery pack is not available for purchase in certain countries. In countries where it is available, the battery pack must be shipped separately using specifically regulated shipping methods and may require special shipping and handling charges. Our sales team is available to answer additional questions concerning the shipment of this battery pack.
This battery cannot be shipped to certain postal codes in and around Perth, Australia.