Q-Switched Lasers

1611 Q-Switched Lasers from 80 Manufacturers meet your specification.

Q-Switched Lasers from the leading manufacturers are listed here. Narrow down on the list of Products by wavelength, type, technology and other parameters.

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  • Technology : Q-Switched Laser
Description: MATRIX 1064 and 532 Solid-State, Q-Switched Laser
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate), OEM Laser...
Technology:
DPSS Laser, Q-Switched Laser, Solid State Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
532 nm
Laser Color:
Green
Power:
14 W
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Description: 1064 nm Triggered Microchip Lasers for Spectroscopy & Biophotonics Applications
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head
Technology:
Q-Switched Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Near-Infrared
Pulse Energy:
0.75 uJ
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Description: Short Pulse Q- Switched DPSS Laser
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser, DPSS Laser, Solid State Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Nd:YAG, Nd:YVO4
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Infrared
Pulse Energy:
4 mJ
Mode:
Single Mode
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Configuration:
Laser Head with Control Unit (Integrated)
Technology:
Q-Switched Laser
Gain Medium Type:
Dye
Tunable:
No
Laser Gain Medium:
Neodymium-Doped, YAG
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
213 to 1064 nm
Pulse Energy:
20 to 10000 mJ
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Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
Q-Switched Laser, Solid State Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
213 nm
Laser Color:
Ultraviolet
Power:
150 mW
Pulse Energy:
15 µJ
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Description: high repetition rate Q-switched lasers
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
Q-Switched Laser, DPSS Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Infrared
Power:
30 to 60 W
Pulse Energy:
1.5 to 300 µJ
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Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser, DPSS Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Infrared
Power:
200 to 500 mW
Pulse Energy:
10 to 20 uJ
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Description: High Energy Nd:YAG Lasers
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
Q-Switched Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Nd:YAG
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
266, 355, 532, 1064 nm
Laser Color:
Ultraviolet, Green, Infrared
Pulse Energy:
2 to 50 mJ
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Description: Nd: YAG Q-Switched DPSS Pulsed Laser for LED, LiDAR and PCB Manufacturing Applications
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head
Technology:
DPSS Laser, Q-Switched Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Neodymium-Doped, YAG
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
355 nm
Laser Color:
Ultraviolet, Green
Power:
> 4 W
Pulse Energy:
200 uJ
Polarization:
Vertical
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Description: JPT LP series pulsed fiber lasers make use of master oscillator power amplifier (MOPA) configuration
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser
Tunable:
No
Fiber Coupled:
Yes
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Infrared
Power:
30 W
Pulse Energy:
0.66 mJ
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Description: Subnanosecond Passively Q-Switched DPSS MICROCHIP Lasers: PULSELAS®-P Series
Ultrafast Laser:
Picosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
DPSS Laser, Q-Switched Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
100 to 1064 nm
Laser Color:
Violet, Infrared
Power:
0.1 W (100 mW)
Pulse Energy:
1000 µJ
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Description: 488 nm Solid-State Q-Switched Blue Laser for Communication and Scientific Research
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser, Solid State Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
Yes
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
488 nm
Laser Color:
Blue
Power:
1 to 300 mW
Pulse Energy:
1 to 75 uJ
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Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser, Solid State Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
Yes
Laser Gain Medium:
Nd:YAG Laser
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
532 nm
Laser Color:
Green
Pulse Energy:
100 mJ
Polarization:
Horizontal
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Description: CL523-025 25 mW
Configuration:
Laser Head with Control Unit (Separate), OEM Laser...
Technology:
DPSS Laser, Q-Switched Laser
Tunable:
No
Fiber Coupled:
Yes
Operation Mode:
CW Laser
Wavelength:
523 nm
Laser Color:
Green
Power:
0 to 0.025 W
Mode:
Multi-Mode
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Description: High Energy, High Repetition Rate, Proton Laser Application, present a new series of Q-switched Nd lasers, the Olaser family
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
Q-Switched Laser, Solid State Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Nd:CrYAG Laser, Ti:Sapphire Laser
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1053 nm (Nd: YLF), 1064 nm (Nd:YAG)
Laser Color:
Infrared
Power:
Up to 200 W
Pulse Energy:
220 to 800 mJ
Mode:
Multi Mode
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Description: Ho:YAG Nanosecond Pulsed Lasers
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Solid State Laser, Q-Switched Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Ho:YAG Laser
Fiber Coupled:
Yes
Operation Mode:
Pulsed Laser
Wavelength:
2.09 µm
Laser Color:
Infrared
Power:
9 to 40 W
Pulse Energy:
0.8 to 50 mJ
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Description: Nd: YAG Passively Pumped Q-Switched DPSS Laser for LIDAR, LIBS, and Biophotonics
Ultrafast Laser:
Picosecond Lasers, Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate), OEM Laser...
Technology:
Q-Switched Laser, DPSS Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
YAG, Neodymium-Doped
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Red
Power:
up to 120 mW
Pulse Energy:
120 to 135 µJ
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Description: Diode Pumped Air-cooled Q-switched Laser
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated)
Technology:
DPSS Laser, Q-Switched Laser
Gain Medium Type:
Solid State (Crystal / Glass)
Tunable:
No
Laser Gain Medium:
Neodymium-Doped, YAG, YLF
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1053 or 1064 nm
Laser Color:
Infrared
Power:
Up to 0.5 W
Pulse Energy:
0.1 to 45 mJ
Polarization:
Horizontal
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Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser, DPSS Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
1064 nm
Laser Color:
Infrared
Pulse Energy:
10 µJ
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Description: 532 nm and 1064 nm Q-Switched Diode-Pumped Lasers
Ultrafast Laser:
Nanosecond Lasers
Configuration:
Laser Head with Control Unit (Integrated), OEM Las...
Technology:
Q-Switched Laser, DPSS Laser
Tunable:
No
Fiber Coupled:
No
Operation Mode:
Pulsed Laser
Wavelength:
532 nm, 1064 nm
Laser Color:
Green, Near-Infrared
Power:
50 mW, 100 mW
Pulse Energy:
up to 100 µJ
Polarization:
Vertical
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Description: 1030 nm Q-switched Picosecond Microchip Laser System
Ultrafast Laser:
Picosecond Lasers
Configuration:
Laser Head with Control Unit (Separate)
Technology:
Q-Switched Laser
Tunable:
Yes
Fiber Coupled:
Yes
Operation Mode:
Pulsed Laser
Wavelength:
1030 nm
Laser Color:
Infrared
Power:
350 to 450 mW
Pulse Energy:
40 to 50 µJ
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1 - 15 of 1611 Q-Switched Lasers

What are Q-switched Lasers?

Q-Switched lasers are pulse lasers that use Q-switching techniques to generate short duration (usually in nanoseconds) pulses. When compared to the mode-locking technique (another technique for generating laser pulses), the Q-switching technique produces higher pulse energy with a lower pulse duration, and lower pulse repetition rates. Q-switched lasers usually use neodymium-doped materials (Nd: YAG, Nd: YLF, or Nd: YVO4) as the active gain medium. They can also use an erbium-doped gain media Er: YAG that enables lasers to operates at a wavelength 1.65 or 2.94 μm wavelength or thulium-doped crystals that operate at a wavelength of 2 μm. The Q-switched laser can be pumped by either using continuous or pulse form and are ideal for applications that demand high laser intensities in nanosecond pulses, such as metal cutting, and pulsed holography.


Pulsed laser

How does a Q-Switched Laser Operate?

The Q-factor of an optical resonator is defined as the ratio of energy stored in the inside standing wave to the wasted energy from the wave during a round trip between the laser mirrors. High Q-factor means that high levels of energy can be stored in a cavity, whereas a low Q-factor means that energy is emitted rapidly from the cavity. 

Schematic set up of a Q-switched laser

Schematic set up of an active Q-switched fiber laser

The Q-switching technique is realized by putting some type of variable attenuator inside the optical resonator of the laser. The attenuator can absorb or lower the power level without disturbing signals. Here, this variable attenuator acts as a Q-switch.  

When the Q-switched laser is ON, initially, the attenuator functioning as the light absorber (i.e with a low Q) and absorbs the light coming out from the gain medium (i.e., the light does not hit the opposite mirror). Hence, there is no light returned back to gain medium, and lasing cannot begin. This reduces the Q-factor of the optical cavity.

Now, s population inversion increases due to the pumping process of the laser, energy inside the cavity increases, and after some time, it attains a saturation point. Some energy inside the optical cavity is lost due to spontaneous emission and other processes. At this point, the Q-switch device is quickly changed from the low Q to High Q, allowing the laser light to reflect between two optical mirrors and ensuring the lasing action to begin (stimulated emission). Because the active medium already has high energy (high population inversion), it causes the high-intensity laser light to build up quickly and reduce storage energy quickly. This whole process results in a short duration. high peak power laser pulse as the output.

Two main types of Q-switching are used. They are active Q-switching and passive Q-switching. In the case of active Q-switching, the Q switching device (variable attenuator) is a mechanical device, such as a shutter, chopper wheel, or spinning mirror/prism placed inside the cavity. In passive switching, the Q-switch is a saturable absorber.

Specifications of Q-switched Lasers

Technology: Q-switched laser

Wavelength: Represents the wavelength of laser light emitted from a Q-switched laser. These lasers are available in deep UV range (300 nm to 200 nm) to the IR range. The wavelength is represented in a nanometer (nm).

Tunable: Represents the wavelength tune-ability of the Q-switched laser. Both the tuneable and non-tuneable Q-switched lasers are available.

Fiber-coupled: The Q-switched lasers are available both in fiber couple or non-fiber coupled choices.

Operation mode: Pulsed laser

Laser color: Represents the laser colour. The Q-swiched lasers are available from deep UV to the IR spectrum.

Mode: Represents the mode of operation of laser light. Both the single-mode and multi-mode  lasers are available.

Gain medium type: Represents the host material of the Q-switched laser. It can be a Crystal/glass/fiber.

Laser gain medium: Represents the type of material used as the laser gain medium. Usually, Nd: YAG/ Nd: YLF/ Nd: YVO4/ Er: YAG/fiber/thulium-doped crystal is used as the laser gain medium. Mostly, the gain medium Nd: YAG is used.

Power: Represents the power output of the Q-switched laser. It can have a range of milliwatts to kilowatts range.

Pulse width: Represents the pulse duration of the Q-switched laser working in a pulsed mode of operation. Mostly, the duration of pulse range is available in a nanosecond (10-9 s) range.

Pulse energy: Represents the pulse energy of the Q-switched lasers. Usually, it is in the range from µJ to J (joule) range.

Ultrafast laser: The Q-switched laser with pulse width is in a nanosecond (10-9 s) range is called an ultrafast laser.  

Repetition rate: Represents the number of emitted pulses per second from a Q-switched laser. It is represented in Hz. For example, the repetition rate of 200 Hz means that 200 pulses per second emitted from the pulse laser. 

Beam divergence: Represents the divergence of the laser. Usually, it is represented in milliradian (mrad).

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