Short Pulse (ns/ps/fs) Lasers

Ultrashort pulse lasers – femtosecond, picosecond and nanosecond

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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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Products	Product Code	Description
	PLS-I	High Power Nanosecond Pulsed LEDs Features: Wavelengths from 245 to 600 nm Average power up to 300 µW (pulsed and CW) Pulse widths 0.8 to 2 ns (FWHM) Repetition rate from single shot up to 40 MHz Pulsed, burst and CW mode Optional band pass filter available for improved spectral purity The high […]
	PLS Series ( 0.8 ns - 1.3 ns )	Sub-nanosecond pulsed LEDs
	CPDL-M/S Series ( <100 ps )	Compact Diode Lasers for OEM Integration Features: Compact design for integration Wavelengths between 375 and 1990 nm Pulse widths < 100 ps Fixed intensity setting Internally triggered or externally triggered versions Laser modules from the CPDL-M/S Series can be used for various applications including: Time-resolved measurements and fluorescence lifetime Diffusion measurements Testing and […]
	CPDL-S-F/FA Series ( <100 ps )	Compact Diode Lasers for OEM Integration Features: Compact design for integration Wavelengths: 1030, 1064, 1530, 1550 nm (others upon request) Pulse width < 100 ps Any rep rate 1 kHz up to 100 MHz Average power up to 50 mW (including fibre amplifier) Flexible interface USB or RS 232 Applications: Laser modules from […]
	PPL 512 / PPA 512	Programmable Pulsed Laser Programmable nanosecond pulse shapes 0.1 ns to CW Average power up to 20 mW Extinction ratio up to 70 dB FC/APC output, polarisation maintaining The PPL 512 / PPA 512 is a stand-alone, computer controlled laser platform for the generation of nanosecond pulses with programmable pulse shapes. The resulting laser signal, […]
	PPG 512	Programmable Pulse Generator Programmable Pulse Generator Arbitrary pulse generator for the monitoring of Electro-Optic Modulators (EOM) 5 GS/s, 200 ps time bins Record length 512 Bytes / 102.4 ns, 8 bit resolution High output amplitude, up to 12 V into 50 Ohm Applications: The PPG 512 programmable pulse generator can be used for various […]
	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.
	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 Contact us for other wavelengths and output powers
	Hedgehog ( ≥ 40 ns )	A unique combination of small size, tuning speeds up to >5000 cm^-1/s, CW or pulsed output, high power, TEM00 beam quality, and unmatched spectral repeatability. Available centre wavelengths span the Mid-IR spectrum from 4-13 µm. Select from 3 standard Hedgehog models: the Hedgehog (tunes up to 200 cm^-1), Hedgehog-UT (up to 400 cm^-1), and Hedgehog-LT (up to 30 cm^-1)
	ANTARES Series ( <10 ps )	Compact narrow linewidth picosecond fibre laser. Available at 1030 nm or 1064 nm.