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
ALCOR compact high-power femtosecond laser for two-photon microscopy
ALCOR Series
(
<100 fs
)
Compact high power femtosecond laser. Available at 780 nm, 920 nm, and 1064 nm.
Mini2P
Mini2P microscopy was developed by the Kavli Institute for Systems Neuroscience. The open-source miniature two-photon microscope is designed for high resolution and fast calcium imaging in freely moving animals. The aim is to allow stable and high-quality imaging to be observed during a wide spectrum of behaviours without impacting on the animal’s natural behaviour. In […]
Femtosecond fibre laser
ALTAIR Series
(
<160 fs
)
High power femtosecond laser. Up to 20 W at 1035 nm.
High energy femtosecond laser
DIADEM Series
(
400 fs
)
Compact high energy femtosecond laser. Available at 1030 nm, 1064 nm,  and 1300 nm
Smart Laser Diode Heads for Taiko PDL M1
LDH-I Series
(
40 ps - 250 ps
)
Smart pulsed laser heads in the spectral range from 375 to 1550 nm, with power calibration
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
Amplified Picosecond Pulsed Laser Diode Heads
LDH-P-FA Series
(
80 ps - 100 ps
)
High powered picosecond light pulses at 266, 355, 515, 532, 560, 766, 1064, or 1532 nm.
Flexible Laser Combining Unit for up to 5 Laser Lines
Flexible Laser Combining Unit for up to 5 Laser Lines   Features: Wavelength 375 nm to 900 nm Up to 5 laser lines Polarisation maintaining singlemode output fibre Flexible configurations Supports laser heads of the LDH Series and LDH-FA Series   Applications: Time-Resolved Fluorescence Pulsed Interleaved Excitation (PIE) Dual Focus Fluorescence Correlation Spectroscopy (2fFCS) Fluorescence […]
Fibre Coupling Solution for any PicoQuant Laser
Fibre Coupling Solution for any PicoQuant Laser Available for all collimated free beam laser sources from PicoQuant (except below 350 nm) Various fibre types: multi-mode, single mode and polarisation maintaining single mode Various input and output connectors: FC/APC, FC/PC, SMA, High Power Fibre End-caps, others on request Typ. 40–60 % coupling efficiency in (polarisation maintaining) […]
3-Colour Picosecond Laser
3-Colour Picosecond Laser   Features: 3-Colour Picosecond Laser (450, 515, 640 nm) Compact, stand alone, affordable Pulsed and CW operation, fast CW switching Suitable for measuring Fluorescence lifetime (ns) and Photoluminescence lifetime (µs-ms) Triggerable internally and externally, up to 200 MHz Fully computer controlled   Prima is a solution for researchers who: Need more than one […]
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PhD

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