Del Mar Photonics
Ultrafast Laser System PU -
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The proposed ultrafast laser system comprise of the items specified below.
At every stage of the system there are flip mirrors to take a portion of the beam to carry out
different studies.
1) Seed Pump CW Laser DPSS -
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Wavelength 532nm
Spatial Mode TEM00
Beam Diameter (at 1/e2 points) 2.5mm Typical
Polarization 100:1, vertical
Power Stability < ±1%
Noise < 0.04% rms or better
Operating Voltage 220VAC/50Hz
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DPSS DMPLH lasers
DPSS DMP LH series lasers will pump your Ti:Sapphire laser.
There are LH series lasers installed all over the world pumping all makes & models
of oscillator. Anywhere from CEP-stabilized femtosecond Ti:Sapphire oscillators
to ultra-narrow-linewidth CW Ti:Sapphire oscillators. With up to 10 Watts CW
average power at 532nm in a TEMoo spatial mode, LH series
lasers has quickly proven itself
as the perfect DPSS pump laser for all types of Ti:Sapphire or dye laser.
Ideal for pumping of:
Trestles LH
Ti:Sapphire laser
T&D-scan laser
spectrometer based on narrow line CW Ti:Sapphire laser
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2) High Power Ultrafast Ti:Sapphire Oscillators (femtosecond-picosecond) ?
Dual platform of femtosecond and picosecond configuration with necessary
conversion kit from one
operation to other operation.
Noise <0.1 (%)
Stability <3 (%)
Spatial mode TEM00
Polarization Horizontal
The setup should includes all the control electronics for Mode Locked laser head
along-with the
necessary purging unit to enable work in IR
Related product:
3) Pump laser for regenerative amplifier
Q-Switched, intracavity doubled Nd:YLF Green Pump Lasers for Pumping
Regenerative ampfilier
with double pulse option.
Wavelength (nm) 527/532nm
Pulse-to-Pulse Energy Stability <1 (% rms)
Operating Voltage 220V @50Hz (VAC)
4) Regenerative Ti:Sapphire Amplifiers
(Including the stretcher and compressor)
Center Wavelength 800 (nm) (nominal)
Tunable range 750 to 840nm
Contrast Ratio
Pre-pulse >1000:1
Post-pulse >100:1
Energy Stability <0.75% (rms)
Spatial Mode TEM00
M2
<1.35
Polarization linear, horizontal
5) Optical Parametric Amplifier
Computer Control ultrafast optical amplifier to extend
Tunable range 290nm to 11 microns
Pulse width Typical 100fs
Energy per pulse Tens of micro-joule per pulse over the tunable range
Please indicate different modules/package which will cover
the entire range
6) Single Shot Autocorrelator
Detector Type* PMT for Low intensity signals
Photodiode or CCD array for high intensity signals
Output Should be available to Display on Oscilloscope and
through interface card onto the Computer (Serial/DAC
Card/IEEE/USB)
*Both should be interchangeable depending upon the experiment
7) Pulse Picker -
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For use with femto-second and picoseconds pluses from mode-locked laser and or
Amplifier
systems
Repetition rate 1 KHz to 5MHz (nominal range)
Wavelength Range 500 nm to 3 micron (maybe covered using one or more
module)
Input Power (to be compatible with output from Ti Sapphire
Oscillator mentioned in Sl 2 above
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Pismo pulse picker
The Pismo pulse picker systems is as a pulse gating system that lets single
pulses or group of subsequent pulses from a femtosecond or picosecond pulse
train pass through the system, and stops other radiation. The system is
perfectly suitable for most commercial femtosecond oscillators and
amplifiers.
The system can pick either single pulses, shoot bursts (patterns of single
pulses) or pick group of subsequent pulses (wider square-shaped HV pulse
modification). HV pulse duration (i.e. gate open time) is 10 ns in the default
Pismo 8/1 model, but can be customized from 3 to 1250 ns upon request or made
variable. The frequency of the picked pulses starts with single shot to 1 kHz
for the basic model, and goes up to 100 kHz for the most advanced one.
The Pockels cell is supplied with a control unit that is capable of synching
to the optical pulse train via a built-in photodetector unit, while electric
trigger signal is also accepted. Two additional delay channels are available
for synching of other equipment to the pulse picker operation. Moreover, USB
connectivity and LabView-compatible drivers save a great deal of your time
on storing and recalling presets, and setting up some automated experimental
setups. One control unit is capable of driving of up to 3 Pockels cells, and
this comes handy in complex setups or contrast-improving schemes. The system
can also be modified to supply two HV pulses to one Pockels cell unit,
making it a 2-channel pulse picker system. This may be essential for
injection/ejection purposes when building a regenerative or multipass
amplifier system.
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8) Spectrum Analyzer
Spectrum Analyzer for measuring bandwidth of laser pulses and its peak position
Wavelength Range 200nm to 110nm
Resolution 0.03nm
Output Display on the Oscilloscope and should be capable
of interfacing with the Computer along-with Windows based
control software
Fiber Optic coupled spectrometer for remote
measurement
9) Laser Power Meter
Laser Power Meter to measure the average power of the laser pulses
Type Analog/Digital Meter
Range 10nW to 30W
Wavelength Range 200nm to 20 microns
Sensor Type
1) Silicon Photodiode for Low power range
(with appropriate Neutral Density filter 3.0OD)
2) Thermopile Sensor head for High power measurement
Threshold Densities power densities of 20kW/cm2 or 300mJ.cm2 of 50nS Pulses
Output Analog/Digital Meter Display and Analog Output
(Voltage level in range of 10V)
10) IR Viewer
IR Viewer to see IR Beam for alignment of component in laser systems
Wavelength 350nm to 2000nm
Focus Range Typically from 1m to infinity
Resolution 30 lines/mm or better
Field of View 300 (Typical)
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Near IR viewers
High performance infrared
monocular viewers are designed to observe radiation emitted by
infrared sources. They can be used to observe indirect radiation of IR
LED's and diode lasers, Nd:YAG, Ti:Sapphire, Cr:Forsterite, dye lasers and
other laser sources. IR viewers are ideal for applications involving the
alignment of infrared laser beams and of optical components in
near-infrared systems. Near IR viewers
sensitive to laser radiation up to 2000 nm.
The light weight, compact monocular may be used as a hand-held or facemask
mounted for hands free operation.
Ultraviolet viewers are
designed to observe radiation emitted by UV sources. |
11 ) Research grade optical vibration isolation table (for mounting lLaser
systems)
Dimension 12ft x 4ftx1ft with 6 active isolators of 23.5” height
Table Top Ferromagnetic stainless steel 3/18 in thick with M6 holes on
25mm grid)
Core design Trussed honeycomb core design
12) Research grade table for setting up experiments
Dimension 6ft x 4ftx 1ft with 4 active isolators each of 23.5” height
Table Top Ferromagnetic stainless steel 3/18 in thick with M6 holes on
25mm grid)
Core design Trussed honeycomb core design
13) Air compressor to float research table in Sl. No. 10 and Sl. No. 11
Operating Voltage 220VAC 50 HZ
14) Necessary water chiller for the above laser be supplied depending on the
heatload factor and the
cooling requirement of the above laser
15) Other essential accessories
1) Beam Dumpers or Blockers
2) Laser Safety Goggles covering most of the range and to used while working
with the
Ultrafast laser systems
3) Beam routing kit to shield the beam as it passes from one System to other
16) Optical components to setup experiments
All the below mentioned optical components are to be used with femto-second
pulses hence
the required components should introduce as minimum dispersion as possible to
minimize
broadening of laser pulses.
a. High damage threshold broad band mirror (200nm to 2Micron) with high
reflectivity
b. Beam splitters (50:50),(80:20),(70:30)
c. Broad band half wave plate VIS and near IR
d. Broad band quarter wave plate VIS and near IR
e. Linear polarizer- quartz type
f. Rotational Mount with 0.50 degree accuracy
g. Computer controlled motorized rotational stage with resolution of 0.020 for
half wave
plate along with the controller
h. Computer controlled motorized linear travel of 10 cm with0.01micron
resolution stage 2
for half wave plate along with the controllers
i. Mechanical mounts, post and post holders for the above mentioned optical
elements from
Sl. No. (a to e)
