These specifications are typical values and the performance will vary from device to device. Options range from individual laser diodes and DPSS lasers to complete laser solutions such as fiber-coupled lasers, HeNe lasers, femtosecond lasers, … A wide variety of applications require tunable single-frequency operation of a laser system. All four are capable of single-frequency output through the utilization of grating feedback. As a division of Thorlabs, a company with deep vertical integration and a portfolio of over 20,000 products, we are able to provide and support a wide selection of equipment and continually expand our offerings. This laser class also applies to larger-diameter or diverging laser beams. Could I set the repetition rate to be 1 ~ 20 Hz by an external trigger? Thorlabs' Volume-Holographic-Grating- (VHG) Stabilized Lasers are laser diodes that use feedback from a volume holographic grating to provide narrow-linewidth, single-frequency operation. I will reach out to you directly to discuss your specific requirements for a particular part recommendation. However, the single-electrode DBR will have periodic mode hops in its tuning curve. Class-3B lasers must be equipped with a key switch and a safety interlock. Each laser's center wavelength is tested and reported on a serialized data sheet; this wavelength may be anywhere in the ITU C band (1530 - 1565 nm), but most of the devices below will operate at or near 1550 nm. Laser-induced damage often results in plasma generation on the optical surface from non-resonant optical breakdown (called a plasma spark), which causes plasma scalds to form around the damage site. Thorlabs' extensive selection of laser diodes includes Fabry-Pérot and Fiber Bragg Grating (FBG) Lasers, as well as Single-Frequency Lasers (SFL) with Distributed Bragg Reflector (DBR), Distributed Feedback (DFB), Volume Holographic Grating (VHG), External Cavity (ECL), and Ultra Low Noise (ULN) designs. Do you have a wave guide that I can use? The counterbored through holes allow the clamps to be mounted on a Ø1/2" post or any surface with an 8-32 (M4) tap. These laser systems include the laser head, a +15 V power supply, a 2 mm flathead screwdriver, and two ECM225 clamps for post mounting the laser head. This single-electrode DBR eliminates the complications of grating and phase control at the cost of tuning range. They are designed to create a laser cavity, similar to an ECL, through the length of fiber. While the connector is cleaned and capped before shipping, we cannot guarantee that it will remain free of contamination after it is removed from the package. Product Details. The laser intensity at the center of the fiber tip can be very high and may burn the tip of the fiber if contaminants are present. Edge-emitting laser diodes also emit astigmatic beams, and it can be desirable to force the displaced focal points of the orthogonal beam components to overlap. Please see the Mounting tab for mounts and stages that can be used to adjust the beam pointing tip and tilt angles. 1550 nm, 140 mW, … This specification is given for operation at 10 MHz. Thorlabs Ultra-Low-Noise (ULN) Hybrid Lasers each consist of a single angled facet (SAF) gain chip coupled to an exceptionally long fiber Bragg grating (FBG). While prone to mode hops, it provides narrow linewidths (<1 MHz). 1 650,00 EUR. 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 … Découvrez toutes les informations sur le produit : laser pulsé de la société Thorlabs. Some short duration pulses do not reach maximum output power (see Typical Pulses plots) and therefore have reduced average output powers. The red icon next to the serial number then allows you to download L-I-V and spectral measurements for that serial-numbered device.FeaturesSingle Mode Pigtai In addition, laser safety signs lightboxes should be used with lasers that require a safety interlock so that the laser cannot be used without the safety light turning on. To inquire about custom or OEM devices, … Do not use Laser Viewing Cards in place of a proper, Fiber-Optic Transmitter Design, to 70 GHz, Design of Fiber-Optic and Photonics Sub-Assemblies, Electrical-to-Optical Converters, to 70 GHz, Pulsed Lasers with Fixed 10 ns Pulse Duration, Pulsed Lasers with Variable Pulse Width and Repetition Rates, Electronic Delay Units to Synchronize NPL Series Pulsed Lasers. A representative graph of a ULN15PC laser's wavelength can be seen below. This work investigated all three approaches. Thorlabs offers packs of fifty 2-56 screws (SH2S019) as well as a 2-56 tap (TAP256) to aid in installation. 3. We discuss below some of the main differences between single-frequency diode lasers. Each device includes an individualized datasheet, which provides the optimal temperature difference, ΔT, between the FBG and gain chip. This would be very helpful for diagnosing my cavity via ringdown. Calculating peak pulse power, average power, pulse energy, and related parameters can be necessary to achieve desired outcomes including: Pulsed laser radiation parameters are illustrated in Figure 1 and described in the table. Relative to a beam axis normal to the plane of the front panel. Thorlabs' Ultrafast Optoelectronics Team designs, develops, and manufactures high-speed components and instrumentation for a variety of photonics applications having frequency responses up to 70 GHz. Quantity. Additional ECM225 clamps, as well as ECM175 clamps that attach to the side of the laser housing, are available separately. You may use one of our modules from this page (https://www.thorlabs.com/navigation.cfm?guide_id=27) to couple the light into a fiber of your choice. Thorlabs' Ultra-Low-Noise (ULN) Hybrid Lasers provide signals with relative intensity noise below -165 dBc/Hz and typical (Lorentzian) linewidths of 100 Hz. The DS15 is a 15 V regulated power supply with a 1.53 m (60.24") long cable and a Mini-XLR connector. My Thorlabs: Products Home / Technical Resources / Laser Diode Technical Publications / Single Frequency Lasers Tutorial. This THORLABS INC. LDC 201 C is in excellent condition and ready to be redeployed. To meet a range of requirements, our fiber-optic instruments span a variety of integration levels. For Item #s ending in B or C, the peak output power may be up to 15% greater or 24% lower than the value given in the table to the upper right. Thorlabs' Nanosecond Pulsed Laser Diode Systems are designed to provide a convenient, turnkey source of nanosecond pulse trains at repetition frequencies up to 10 MHz. Click to Enlarge Figure 1: ECL Lasers have a Grating Outside of the Gain Chip. This category only applies to visible radiation (400 - 700 nm). Currently, Thorlabs offers only single-electrode DBR lasers. The controls for adjusting the pulse width and repetition rate are located on the back panel, which is shown in the image to the right. These laser systems include the laser head, a +15 V power supply, a 2 mm flathead screwdriver, and two ECM225 clamps for post mounting the laser head. Pulse widths are adjustable from 6 to 129 ns over 16 discrete settings with approximately equal spacing. The wavefront sensor provided a way to measure the abberations of the output beam. These compact instruments consist of a laser head, an external +15 V power supply with location-specific plug, and two ECM225 mounting clamps. Compatible with Thorlabs' Laser Diode and TEC Controllers TO-packaged laser … Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. We also recommend that the laser is turned off when connecting or disconnecting the device from other fibers. Class 4 lasers must be equipped with a key switch and a safety interlock. Please see the Shipping List tab for a complete list of included components. Drive currents between the single mode ranges will result in multimode outputs. La paire de miroirs à compensation de dispersion est spécialement conçue pour corriger les distorsions de phase qui se produisent lorsque des impulsions ultra-courtes traversent un système optique. Pulse widths are adjustable from 5 to 39 ns over 16 discrete settings with approximately equal spacing. Page 10: Warranty 1.2 Warranty 1.2 Warranty Thorlabs GmbH warrants material and … Brand. The beam output from the prisms had better M2 values and less wavefront error than the cylindrical lenses, but the transmitted power was lower. The characteristics of the beams output by the different circularization systems were evaluated by making measurements using a power meter, a wavefront sensor, and an M2 system. Measuring the pulsed laser emission without damaging photodetectors and other sensors. We recommend cleaning the fiber connector before each use in case any dust or other contaminants have been deposited on the surface. 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 … Image of the beam profile taken at 5 m with Thorlabs', Applies to external triggering (all Item #s) and internal triggering (only Item #s ending in B). The ULN15PT from Thorlabs Inc is a Laser Diode with Wavelength 1530 to 1565 nm, Output Power 100 to 140 mW, Output Power 100 to 140 mW, Operating Current 650 to 800 mA, Operating Current 650 to 800 mA. The single-electrode DBR laser provides similar linewidth and tuning range as the DFB (<5 nm). If the current is increased from 700 mA, the output will not become single mode until a current of approximately 715 mA (red curves on the graph below); however, after entering this region of single mode operation, the drive current can be lowered to almost 700 mA with the laser cavity maintaining single mode operation (blue curves). Trending. The power meter was used to determine how much the beam circularization system attenuated the intensity of the input laser beam. Single Frequency Lasers Tutorial. Lasers in this class are considered safe as long as they are handled with restricted beam viewing. It is possible that using smaller mounts would improve results by allowing the members of each pair to be more precisely positioned with respect to one another. Great care must be taken when handling these lasers. Important Notes: 1. Normalized astigmatism is the difference in the waist positions of the two orthogonal components of the beam, divided by the Raleigh length of the beam component with the smaller waist. Laser Head with Integrated Drive Electronics and Temperature Stabilization Circuits, DS15 +15 V Power Supply with Mini-XLR Type Connector and Location-Specific Plug, Interlock Pin Installed in Interlock Port (Not Shown), Set of Keys for the Key Switch (Not Shown). Thorlabs… Thorlabs offers these lasers in one of three configurations: chip on submount, C-Mount, and butterfly package.The Chip on Submount pa These compact … More details for ULN15PC can be seen below. 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