Please note, as can be seen in the Typical Pulses plots below, that some short-duration pulses do not reach the maximum optical powers of longer-duration pulses. 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.

However, there are unit-to-unit variations in the pulse width across a particular model. By dividing this average power by the repetition rate and the pulse width, it is possible to estimate the peak pulse output power. The maximum average output power, which is specified in the table to the upper right, is factory-set for each unit while it operates at the maximum repetition rate and emits pulses of maximum width. The average optical output power of these laser systems is the product of the repetition rate, the pulse width, and the peak pulse power. Please see the Lab Facts tab above for more information on beam circularization techniques.įor fiber-coupled optical output options, we recommend choosing from our selection of coupling packages to accommodate the NPL series' larger beam diameter. If an application requires circularizing the beam, Thorlabs offers anamorphic elements, such as anamorphic prism pairs. The output beam is elliptical, as is typical of solid-state diode lasers that do not use anamorphic optical components to circularize the beam. The lens position is factory set for a nominal divergence of about 1 mrad. The optical output is a linearly polarized, free-space beam collimated by an integrated aspheric collimating lens, which is permanently fixed in a tube located behind the shutter. For additional information, please see the Specs tab and the Back Panels tab. Depending on the Rep Rate selector setting, the SMA connector on the back panel outputs a signal synchronized with the internally triggered pulses or accepts the user supplied trigger signal. The Rep Rate selector on the back panel allows the user to easily choose the desired internal or external trigger setting.

Lasers with internal triggers (Item #s ending in B) also feature internal oscillators that generate 1, 5, or 10 MHz frequency trigger signals, enabling these systems to produce stable trains of nanosecond laser pulses without an external trigger. The repetition rate can be anything from a single shot up to the max repetition rate specified in the table to the upper right. Lasers with Item #s ending in B also feature an internal trigger which is described below. External trigger signals have a maximum supported edge transition time of 1 ms. Lasers with Item #s ending in B or C have user-adjustable pulse durations, as specified in the table to the right.Īll of these lasers support external triggering and require a trigger signal to generate laser pulses. The NPL64A laser system provides fixed-width pulses with 10 ns typical durations in response to a user-supplied trigger signal input to the SMA connector on the back panel. The maximum peak pulse optical output powers vary from 13 mW to 1600 mW, depending on Item #, as specified in the table to the right. A safety shutter can be rotated to cover the optical output port, as shown in the images below. The drive electronics and temperature stabilization circuits for the laser diode are all integrated into the laser head, as are safety interlocks. These compact instruments consist of a laser head, an external +15 V power supply with location-specific plug, and two ECM225 mounting clamps. 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. Two ECM225 Clamps Included for Post Mounting the Laser Head.High-Power Models up to 1600 mW Peak Pulse Power (Item #s Ending in C).Models with Internal Triggering up to 10 MHz (Item #s Ending in B).Fixed and Adjustable Pulse Width Models (See Table to the Right).

Drive and Temperature Stabilization Electronics Integrated into Laser Head.Refer to the Specs tab for tolerances, graphs, and complete specifications.

Light speed ns