Laser 2000

Short Pulse (ns/ps/fs) Lasers

Ultrashort pulse lasers – femtosecond, picosecond and nanosecond

As there is no generally accepted specification for the term ‘Ultrashort’ the lasers presented here range from nanoseconds (ns) down to femtoseconds (fs).

There are many methods for generating ultrashort pulses. Generally for the LEDs and Laser diodes detailed below the electronics have been carefully designed to allow optical pulses in the tens of nanoseconds to be obtained, with pulse repetition rates from CW to MHz.

For shorter pulse durations the lasers can operate in a Q-Switched or mode locked regime. In Q-Switching energy is stored in the amplifying medium by optical pumping while the cavity Q is lowered (i.e. Higher cavity losses) to prevent the onset of lasing. When the cavity Q is restored, the stored energy is suddenly released in the form of a short pulse of light. In this mode high pulse energies (mJ’s) can be achieved with pulse repetition rate in the Hz to kHz.

Mode locking can be both active and passive. Passively mode-locked lasers are typically based on a saturable absorber, which allows for the generation of short pulses but has issues with jitter and electronic control. For those applications that require synchronisation with an external electronic signal active mode locking techniques are employed.

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Product Code
Description
DPSS Active Q-Switched Lasers
Active Q-Switched Lasers
(
10 ns – 20 ns
)
CrystaLaser designs and manufactures state of the art ultra-compact diode-pumped Nd:YAG, Nd:YVO4 and Nd:YLF crystal lasers. Our lasers feature with low noise, high stability, high efficiency, high reliability and excellent laser beam quality. These lasers are suitable for OEM, scientific and industrial use. Wavelengths of the Q-switched laser available from UV to IR (nm): 262, 266, 349, 351, 355, 440, 447, 473, 523, 527, 532, 555, 561, 589, 593, 660, 671, 946, 1047, 1053, 1064, 1313, 1320, 1340
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Ultra-compact femtosecond laser
ALCOR Series
(
<100 fs
)
Spark Lasers’ ALCOR is specifically designed for two-photon excitation. It offers clean femtosecond pulses with the highest guaranteed peak power on the market, in an unprecedented compact format and with fixed wavelengths of 920 and 1064 nm
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Femtosecond fibre laser
ALTAIR Series
(
<160 fs
)
ALTAIR produces high average power with ultrashort femtosecond pulses (<160 fs) at high repetition rate (80 MHz standard, others optional) in an ultra compact and robust format. ALTAIR is a fibre laser providing high stability and excellent beam quality. ALTAIR is ideally suited for multi-photon microscopy applications. The 1035 nm  wavelengths offers many benefits for bioimaging : lower scattering, deeper penetration
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Compact Picosecond Fibre Laser for BioPhotonics
ANTARES Series
(
<10 ps
)
ANTARES is a picosecond, quasi-continuous wave laser with a high repetition rate up to 80 MHz and a narrow linewidth, in a very compact and robust format.  This laser series offers average powers 5 W up to 40 W at 1030 nm or 1064 nm. Other wavelengths are also available in the green or UV through frequency conversion. ANTARES is ideally suited for applications such CARS and spectroscopy application
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High energy femtosecond laser
DIADEM Series
(
400 fs
)
DIADEM is a very compact, high energy ultrafast laser for optogenetic and neuroscience applications needing short femtosecond pulse widths, which offers over 40µJ at 30W and up to 1MHz (standard), with pulses below <400 fs from single shot to 1 MHz and a remarkable beam quality with M² < 1.2.  Available in IR, green and UV
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Smart Laser Diode Heads for Taiko PDL M1
LDH-I Series
(
40 ps - 250 ps
)
Smart pulsed Laser heads from this series provide wavelengths in the spectral range from 375 to 1550 nm and include power calibrations, with average powers up to 200mW.  Pulse widths as short as 20ps, with repetition rates from single shot to 100MHz. Pulsed, burst and continuous wave modes. Laser Driver Compatibility: Taiko PDL M1
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Amplified Picosecond Pulsed Laser Diode Heads
LDH-P-FA Series
(
80 ps - 100 ps
)
Laser heads from the LDH-P-FA Series are based on MOFA concept with optional frequency conversion. They provide high powered (1 to 450 mW, depending on wavelength) picosecond light pulses at 266, 355, 515, 532, 560, 766, 1064, or 1532 nm. Laser Driver Compatibility: PDL 800-D, PDL 828 “Sepia II”
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Picosecond Laser Diode Heads for PDL 800-D / PDL 828
LDH-P/D Series
(
30 ps - 160 ps
)
Classic laser head series with directly pulsed laser diodes, and emission lines covering the spectral range from 375 to 1990 nm, with average powers up to 50mW.  Pulse widths as short as 20ps, with repetition rates from single shot to 80MHz. These laser heads can be operated either in pulsed or CW mode. Laser Driver Compatibility: PDL 800-D, PDL 828 “Sepia II”
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Passive Q-Switched Lasers
Passive Q-Switched Lasers
(
1.0 ns - 2.5 ns
)
CryLaS pulsed laser sources based on diode-pumped passively Q switched solid state microchip technology and, depending on the needs of the application, three different product lines at five discrete wavelengths (213nm, 266nm, 355nm 532nm and 1064nm) with energies up to 2.5mJ, repetition rates up to 20 kHz and pulse widths between 1-2.5ns. All laser sources come with control unit, power supply and software
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Picosecond pulsed LEDs
PLS Series
(
0.8 ns - 1.3 ns
)
Sub-nanosecond pulsed LEDs are ideal excitation sources in spectrometer systems that do not require high spatial resolution. Eight different LEDs with central wavelengths between 255 nm and 370 nm allow to choose a peak wavelength according to the needs of the application
Read more...
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