Model DTL-375QT (355 nm)

Application fields:  mass-spectrometry, laser microdissection, laser-induced fluorescence, biotechnology, high technologies R&D

Features:
Active Q-switched mode of operation with short pulse duration
External / internal triggering, PC control via RS-232
Improved long-term stability due to feedback using
OEM version and complete CDRH laser system are available
Output in ultra-violet, green and infrared spectrum ranges (all three harmonics) - is available at special request

Parameter / Model	DTL-375QT
Wavelength, nm	355
Max. value of Average Pulse Energy at 0.01 - 2 kHz,	20 15%
Max. value of Average pulse energy at the range single pulse - 0.01 kHz,	20 25%
Wavelength rejection 532nm/1064nm emissions, % of UV	0.1
Mode of Operation	Q-switched with AOM, ext./int. triggering/through RS-232
Range of Pulse Repetition Rate, kHz    Ext. Triggering    Int. Triggering: through RS-232                           without PC	single pulse - 10 0.01 - 10 1
Energy stability - StdDev/Mean (at 0.01 - 2.0 kHz nominal 1 hour)	10%
Pulse Duration (at 2 kHz, FWHM), ns	5 2
Divergence (full angle at 50 % intensity), mrad	3.0 0.4
Beam    Profile    Diameter (at 50% intensity), at the laser aperture, mm    Ellipticity    Height	Gaussian, TEMoo 0.4 0.1 1.75 33.5 0.5
Polarization Linearity	100:1, horizontal (5)
Output beam static alignment tolerance, mm	0.25
Output beam angular tolerance, mrad	2.5
Output beam pointing stability (std dev, 1 hour), mrad	100
Laser Trigger to Sync Out Pulse (at 0.01 - 2.0 kHz, Average Pulse Energy 20 10), ns    Time Delay    Jitter, FWHM	300 250 8
Laser Emission to Sync Out Pulse (at 0.01 - 2.0 kHz, Average Pulse Energy 20 10), ns    Time Delay    Jitter	50 2
External Trigger (Input signal):    Pulse Amplitude, V    Pulse Duration, ns    Rise Time, ns    AC impedance, kOhm	5 10% 1 and 20 100 1
Output Sync Pulse (Output signal):    Pulse Duration, ns    Pulse Amplitude, V    Rise Time, ns	2.5 30% 5 10% (Rload=50 Ohm) 10
Control connector allows to turn on/turn off pumping (remotely) by means of mechanical switching or by means of TTL-signal	0 - 1 V – pumping on 3.5 – 5 V – pumping off
Operating Temp/Humidity Range	15 - 35 /Up to 80%, non-condensing
Shipping Temp/Humidity Range	-50 to 50 / Up to 80% humidity at 25 (In the manufacturer package)
Dimensions (without connectors), mm (L x H x W)    Laser Head    Laser Head with Heat Sink    Power Supply    Power Supply with Heat Sink	max 299 x 90 x 55 max 299 x 122 x 90 150 x 43 x 93 (x 115 with key) 150 x 110 x 93 (x 115 with key)
Operating voltage    without AC/DC adapter, V    with AC/DC adapter, V	12 10% V DC 90 264 V AC
Current consumption, A	6
Warm Up Time	10 min
Remote control of laser parameters (Ext./Int. Triggering, ON/OFF, pulse repetition rate, pulse energy)	via RS-232 interface
Frequency of exchange via interface RS-232	4800b / per second
Laser Class (CDRH)	IIIb
Compliance	CDRH, CE
Life Time	5000 hours
Weight, kg:    Laser head    Power supply unit    Fan heat sink of Laser Head    Fan heat sink of Power Supply	2.0 1.6 1.0 1.0
Drawing of laser head
Drawing of DC power supply
Drawing of fan heat sink for LH
Drawing of fan heat sink for PSU

¹ Triggering with external electric pulse generator; generator is not included in delivery set.
² Generation of periodical laser pulses using PC, step 0.01 kHz. Average energy may be changed by software from 10% up to maximum value.
³ Generation of periodical laser pulses at 1 kHz rep. rate; external generator and/or PC are not needed.
⁴ Gaussian shape of beam profile allows focusing into extremely small sport ( 1 µm).
⁵ Beam waist is placed approximately 100 mm behind the front panel of laser head (inside of laser head).
⁶ Sync Out signal is generated by pulse of laser light.
⁷ Without AC/DC adapter AS-120P-12 (12 V DC).