DPSS Laser, fs Pulsed, 1040 nm, up to 20 W, 150 nJ to 250 nJ, up to 80 MHz, <250 fs

Key Features:

  • Up to 20 W avg. power at 80 MHz (1.5 MW peak)
  • Up to 250 nJ/pulse
  • <150 fs pulses (<250 fs for VERSA configuration)
  • Pulse picking option
  • GDD precompensation from 0 down to -60,000 fs^2
  • Remote control through TCP/IP
  • Rugged design
  • Maintenance-free


There are many configurations and options available. If you do not see exactly what you need below, please contact us!


Part Number
Part Description
Lead Time
Altair: Femtosecond Laser ALTAIR 1040-10

Ultrafast, Femtosecond DPSS Laser, 1040nm, 10W, 150 fs, 125 nJ, 80 MHz


10-14 weeks

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Altair: Femtosecond Laser ALTAIR 1040-20

Ultrafast, Femtosecond DPSS Laser, 1040nm, 20W, 150 fs, 250 nJ, 80 MHz


10-14 weeks

Get Quote
Altair: Femtosecond Laser ALTAIR 1040-10-PP

Ultrafast, Femtosecond DPSS Laser, 1040nm, 10W, 150 fs, 150 nJ, adjustable rep rate, from 1 to 40MHz


10-14 weeks

Get Quote
Altair: Femtosecond Laser ALTAIR 1040-10-VERSA

Ultrafast, Femtosecond DPSS Laser, 1040nm, 10W, 250 fs, adjustable rep rate from 0 to 40MHz, energy per pulse up to 1uJ (10W at 10MHz)


10-14 weeks

Get Quote

The ALTAIR mode-locked fiber laser produces high average powers up to 20W, ultrashort femtosecond pulses  of <150 fs (<250 fs for VERSA configuration), at a high repetition rate of 80 MHz (others available) in an air-cooled, ultra-compact and robust package.  The ALTAIR is an ideal solution for bioimaging/biophotonics applications such as multiphoton microscopy where deep excitation of red-shifted indicators such as RCaMP, dtTomato, and MCherry is required. As a mode-locked fiber laser, the ALTAIR provides high stability and excellent beam quality.  A host of options can be added to the system such as GDD pre-compensation down to -60,000 fs^2 (lower options available), custom wavelengths, harmonics, repetition rates, and more.

The Altair Femtosecond lasers are ideally suited for multi-photon microscopy applications. The fiber-based design enables a more compact, robust, and reliable laser than its DPSS and Ti:Sapphire counterparts. Through this simplified fiber design, these fiber lasers require little to no maintenance.  Historically, researchers have been using Ti: Sapphire lasers, which utilize many more components and moving parts, including water cooling systems, requiring significantly more maintenance and ultimately leading to higher total cost of ownership.   The combination of short pulse duration and high average power offers many benefits for bioimaging such as lower scattering and deeper penetration and is the preferred solution for both OEM and researchers in the microscopy and life sciences fields

To find out more click here to download our white paper on how mode-locked lasers are used in two-photon microscopy.


  • 1064nm (or other) wavelengths
  • GDD Extension – Increase range to -90,000 fs2
  • Ultra Short Pulse duration (USP) – Pulse duration below 50fs, 30fs typical
  • Frequency Conversion – 517nm or computer selectable 517/1040nm
  • Repetition Rate – Any fixed frequency from 30MHz to 80MH


  • Fluorescence Lifetime
  • Micromachining
  • Multi-Photon Microscopy
  • Non-Linear Spectroscopy
  • Non-Thermal Ablation
  • Optogenetics

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Wavelength (nm)

Output power (W)


Pulse energy (uJ)

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Pulse width


Rep rate

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Q-switch type

How can we help you?

Talk to one of our experienced product managers today!

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Pulsed Lasers FAQs
What is a Pulsed Laser?

A pulsed laser is any laser that does not emit a continuous-wave (CW) laser beam. Instead, they emit light pulses at some duration with some period of ‘off’ time between pulses and a frequency measured in cycles per second (Hz). There are several different methods for pulse generation, including passive and active q-switching and mode-locking. Pulsed lasers store energy and release it in these pulses or energy packets. This pulsing can be very beneficial, for example, when machining certain materials or features. The pulse can rapidly deliver the stored energy, with downtime in between, preventing too much heat from building up in the material. If you would like to read more about q-switches and the pros and cons of passive vs active q-switches, check out this blog “The Advantages and Disadvantages of Passive vs Active Q-Switching,” or check out our Overview of Pulsed Lasers section on our Lasers 101 Page!

What is the best laser for LIDAR?

There are actually numerous laser types that work well for various LIDAR and 3D Scanning applications. The answer comes down to what you want to measure or map. If your target is stationary, and distance is the only necessary measurement, short-pulsed lasers, with pulse durations of a few nanoseconds (even <1ns) and high pulse energy are what you’re looking for. This is also accurate for 3D scanning applications (given a stationary, albeit a much closer target), but select applications can also benefit from frequency-modulated, single-frequency (narrow-linewidth) fiber lasers. If your target is moving, and speed is the critical measurement, you need a single-frequency laser to ensure accurate measurement of the Doppler shift. If you want to learn more about the various forms of LIDAR and the critical laser source requirements, check out our LIDAR page for a list of detailed articles, as well as all the LIDAR laser source products we offer. Get more information from our Lasers 101, Blogs, Whitepapers, FAQs, and Press Release pages in our Knowledge Center!

What is the best laser type for multi-photon microscopy?

Multiphoton excitation requires high peak power pulses. Previously, wavelength tunable Ti:Sapphire lasers dominated this area, leading to the development of standard methods using a conventional pulse regime with typically 100-150 fs pulse duration, 80 MHz repetition rate, and watt level average power with specific wavelengths such as 800 nm, 920 nm, and 1040-1080 nm. Recently, femtosecond pulsed fiber lasers have started becoming the optimal solution due to their low relatively low fluence, limiting damage to living samples. Other advantages provided by fs fiber lasers include a more attractive price point, very compact and robust format, high electrical efficiency, high reliability, and less maintenance of cost of ownership. If you would like more details on why fs fiber lasers are becoming the optimal choice for multi-photon excitation applications, read this article: “Higher Power fs Fiber Lasers to Image Better, Deeper & Faster.” Get more information from our Lasers 101, Blogs, Whitepapers, FAQs, and Press Release pages in our Knowledge Center!

What is the difference between active and passive q-switching?

There are a wide variety of q-switch technologies, but the technique as a whole can be broken down into two primary categories of q-switches, passive and active. Active q-switches could be a mechanical shutter device, an optical chopper wheel, or spinning mirror / prism inside the optical cavity, relying on a controllable, user set on/off ability. Passive q-switches use a saturable absorber, which can be a crystal (typically Cr:YAG), a passive semiconductor, or a special dye, and automatically produce pulses based on it’s design. Both passive and active q-switching techniques produce short pulses and high peak powers, but they each have their pros and cons. When choosing between actively q-switched and passively q-switched lasers, the key is to understand the tradeoffs between cost/size and triggering/energy and decide which is best for your particular application. Read more about these tradeoffs in this article: “The Advantages and Disadvantages of Passive vs Active Q-Switching.” Get more information from our Lasers 101, Blogs, Whitepapers, FAQs, and Press Release pages in our Knowledge Center!

What type of laser is used for LIBS?

A laser source used for LIBS must have a sufficiently large energy density to ablate the sample in as short a time possible. Typically, pulsed DPSS lasers take center stage here. However, it’s been shown that pulsed fiber lasers can also be a great option. For example, you could utilize fiber lasers to measure detection limits as low as micrograms per gram (µg/g) for many common metals and alloys, including aluminum, lithium, magnesium, and beryllium. Analytical performances showed to be, in some cases, close to those obtainable with a traditional high-energy Nd:YAG laser. The beam quality of fiber lasers, in conjunction with longer pulse widths, resulted in significantly deeper and cleaner ablation craters. If you want to learn more about LIBS and ideal laser sources, check out either this blog: “OEM Fiber Lasers for Industrial Laser Induced Breakdown Spectroscopy,” or this blog: “Laser Induced Breakdown Spectroscopy (LIBS) in Biomedical Applications.” Get more information from our Lasers 101, Blogs, Whitepapers, FAQs, and Press Release pages in our Knowledge Center!

Which IR laser is best for laser target designation?

There are many different types of laser designation systems used by the military today. Still, they all share the same basic functionality and outcome. At a glance, the laser requirements seem relatively straightforward. The laser needs to be invisible to the human eye, and it needs to have a programmable pulse rate. Still, when you look in more detail, many small factors add up to big problems if not appropriately addressed. Excellent divergence and beam pointing stability, low timing jitter, and rugged, low SWaP design are all critical features of a good laser designation source. Read more on these critical features in this article: “What are the Critical Laser Source Requirements for Laser Designation?” Get more information from our Lasers 101, Blogs, Whitepapers, FAQs, and Press Release pages in our Knowledge Center!