Del Mar Photonics - Newsletter Fall 2010 - Newsletter Winter 2010
Third Harmonic Generation of Ti:Sapphire Laser Kits
Kits consist of set of components required for efficient third harmonic
generation of femtosecond Ti:Sapphire laser. The scheme of the efficient third
harmonic generation is presented on the left.
Complete standard kit includes:
* Type 1 SHG BBO crystal with 6x6 mm aperture, P-coated @ 400-800 nm,
* Type 1 THG BBO crystal with 6x6 mm aperture, P-coated @ 400-800/266 nm,
* Calcite plate for group delay compensation, AR coated @ 800+400 nm,
* Zero order dual waveplate, optically contacted, AR coated @ 800+400 nm (code
465-4211)
* All above four components are mounted in to 1 inch ring holders for convenient
handling.
The thickness of SHG BBO crystal, THG BBO crystal and group delay compensation
plate is different in each kit and is optimal for certain pulse duration of
fundamental harmonic to avoid harmonic pulses broadening.
Non-standard kits with larger apertures of BBO crystals and thicknesses optimal
for other pulse durations are available on request.
We offer four standard kits for different fundametal pulse duration:
| Part number | Fundamental Pulse Duration | Item price, USD |
| THG-FK-800-200 | 200 fsec | 2990 |
| THG-FK-800-100 | 100 fsec | 3290 |
| THG-FK-800-050 | 50 fsec | 3890 |
| THG-FK-800-020 | 20 fsec | 3990 |
Do not have time to build your kit and want to buy premounted and aligned THG? Continue reading!
Del Mar Photonics - Third Harmonic Product brochure - Third Harmonic Generator Manual - Forth Harmonic Generator manual - request a quote
Third and Forth Harmonic Generator for Ti:Sapphire lasers: Three Case studies
Customer inquiry:
We have about 1 W across the range 780nm to 920 nm. We are interested mostly
in tunability in the range 240-300nm. Pulse width is not very > important. If a
(third + fourth) HG exists in one model, that would be great. Also it would be
good for us to have several wavelength available at the same time, i.e.
fundamental and harmonics.
I want to use this system for a photoemission microscope, and my first interest
is in the tuning capability. The second interest is in building up a
pump-and-probe system using the fundamental or 2nd harmonic as a pump beam and
the third harmonic as probe. Do you have suggestions for the delay-line?
Answer:
We can offer our multiharmonic (SH, TH) generator unit. The simultaneous output
will have around 10% (100 mW) of your input power in fundamental and each of
harmonics (10% fundamental, 10% second and 10% third). Each harmonic has its own
output (see attachment). The tuning range will be 260-300 nm for TH with your
input tuning range.
The FH system will produce 205-230 nm radiation out of your laser (780-920)
=========================================================
Customer inquiry:
I'm interested in the 3^rd harmonic generator for an amplified Ti:sapphire laser.
What is the maximum pulse energy? The system is a Coherent regenerative
amplifier (RegA 9000) that produces 750 mW at a repetition rate of 100 kHz,
which is a pulse energy of 7.5 microjoules in 50 femtoseconds. The beam diameter
is 2.7 mm.
We have tried to use a Coherent 9300 harmonic system, but it is designed for
oscillator energies of nanojoules, so it is too tightly focused on the crystal
and generates white light.
Answer:
Please find enclosed the quotation for the TH generator along with
the drawing. Please note that since the unit is non-standard the dimensions
may be extended by +100 mm in length and +50 mm in width.
Third Harmonic Product
brochure
Sample quote for Third Harmonic Generator for Amplified Ti:Sapphire Laser
Third Harmonic Product brochure - Third Harmonic Generator Manual - Forth Harmonic Generator manual - request a quote
ATsG800 Third Harmonic Generator
Second and third harmonic outputs
Input wavelength for TH 750-900 nm
Input wavelength for SH 710-960 nm
Input pulse width - >20 fs
Conversion efficiency for TH 7-8% (depends on input
parameters)
Conversion efficiency for SH >30% (depends on input
parameters)
Pulse broadening - <150 fs
Input pulse energy 8 μJ
Unit price: $14,000
=================================================================
Customer inquiry:
Im interested in the 3rd harmonic generator for an amplified Ti:sapphire laser.
What is the maximum pulse energy? The system is a regenerative amplifier that
produces 750 mW at a repetition rate of 100 kHz, which is a pulse energy of 7.5
microjoules in 50 femtoseconds. The beam diameter is 2.7 mm. We have tried to
use a Coherent 9300 harmonic system, but it is designed for oscillator energies
of nanojoules, so it is too tightly focused on the crystal and generates white
light.
Del Mar Photonics:
We can offer about 7-8% efficiency, the version for 8 uJ will be non-standard.
Please find enclosed
the quotation for the TH generator along with
the drawing. Please note that since the unit is non-standard the dimensions may
be extended by +100 mm in length and +50 mm in width.
Third harmonic generator (THG) is developed for frequency doubling and tripling of Ti-Sa amplifier radiation (λ=780-820 nm). Device is based on second harmonic generation (SHG) and sum-frequency generation (SFG) techniques and provides stable radiation in fs scale. TH generator is developed for high conversion efficiency.
Femtosecond third harmonic generation for amplified Ti:sapphire laser - THG brochure - THG manual - Request a quote
SPECIFICATIONS
Pulse width - 40-60 fs
TH efficiency - > 7 %*
SH efficiency - >25 % (full output**)
Input beam size (FWHM) - 2.7 mm ***
Input energy in pulse > 8 μJ
Temporal broadening - For TH pulse< 250 fs
For SH pulse <100 fs
Input polarization - Linear- horizontal
Output TH polarization - Linear- horizontal
Output SH polarization - linear- vertical
Output fundamental
beam polarization
- linear- vertical
Input wavelength - 780 820 nm
Output TH wavelength - 260 274 nm
Output SH wavelength - 390 410 nm
Dimensions - 500mm x 362mm x 188mm
* - assuming that pulse is compressed;
** - just after the flip-mirror M7;
*** - assuming that 1.5<M2<2.
Request a quote - Third Harmonic Product brochure - Third Harmonic Generator Manual - Forth Harmonic Generator manual
Product Data Sheets
Del Mar Photonics Product brochures - Femtosecond products data sheets (zip file, 4.34 Mbytes) - Del Mar Photonics
Send us a request for standard or custom ultrafast (femtosecond) product
Pulse
strecher/compressor
Avoca SPIDER system
Buccaneer femtosecond
fiber lasers with SHG Second Harmonic Generator
Cannon Ultra-Broadband Light
Source
Cortes Cr:Forsterite
Regenerative Amplifier
Infrared
cross-correlator CCIR-800
Cross-correlator Rincon
Femtosecond Autocorrelator
IRA-3-10
Kirra Faraday Optical Isolators
Mavericks femtosecond
Cr:Forsterite laser
OAFP optical attenuator
Pearls femtosecond fiber laser
(Er-doped fiber, 1530-1565 nm)
Pismo pulse picker
Reef-M femtosecond scanning
autocorrelator for microscopy
Reef-RTD scanning
autocorrelator
Reef-SS single shot
autocorrelator
Femtosecond Second Harmonic Generator
Spectrometer ASP-100M
Spectrometer ASP-150C
Spectrometer ASP-IR
Tamarack and Buccaneer
femtosecond fiber lasers (Er-doped fiber, 1560+/- 10nm)
Teahupoo femtosecond Ti:Sapphire regenerative amplifier
Femtosecond
third harmonic generator
Tourmaline femtosecond fiber
laser (1054 nm)
Tourmaline TETA Yb
femtosecond amplified laser system
Tourmaline Yb-SS
femtosecond solid state laser system
Trestles CW Ti:Sapphire
laser
Trestles femtosecond
Ti:Sapphire laser
Trestles Finesse
femtosecond lasers system integrated with DPSS pump laser
Wedge Ti:Sapphire multipass amplifier
Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com
Del Mar Photonics offers new Trestles fs/CW laser system which can be easily
switched from femtosecond mode to CW and back.
Having both modes of operation in one system dramatically increase a number of
applications that the laser can be used for, and makes it an ideal tool for
scientific lab involved in multiple research projects.
Trestles LH10-fs/CW laser system at UC Santa Cruz Center of Nanoscale Optofluidics
Typical specifications are:
Trestles LH10-fs/CW laser system
Request a quote
Ti:Sapphire femtosecond oscillator with CW operation option
Spatial mode: TEMoo;
Polarization: linear horizontal;
fs mode:
Tuning range (@10W pump): 750-850 nm;
Output power (@10W pump, 800 nm): >1500 mW;
Repetition rate: 80 MHz;
Pulse duration: <100 fs;
CW mode:
Tuning range (@10W pump): 750-850 nm;
Output power (@10W pump, 800 nm): >2000 mW in CW;
Linewidth (with two etalons): <2 GHz
Also included:
Thermostabilized breadboard;
Electronic starter with TTL output for mode-locked mode observation;
USB-controlled tuning slit for wavelength tuning in fs mode;
3-plate USB-controlled birefringent Lyot filter;
Two motorized USB-controlled etalons for linewidth control
DPSS LH10 (10 Watt Diode Pump Solid State Laser)
Average Output Power > 10 W
Wavelength 532 nm
Spectral Purity > 99.9 %
Spatial Mode TEM00
Beam Quality (M2) 1.0 - 1.1
Beam Ellipcicity < 1.0 : 1.1
Beam Diameter 2.3 mm ± 10%
Beam Divergence < 0.5 mrad
Pointing Stability < 2 μrad/°C
Power Stability < ± 0.25 % rms
Noise Standard version: < 0.2 % rms
Low noise (NET) version: < 0.03 % rms
Polarization > 100:1 vertical
Power Requirements
Operating Voltage 100-240 VAC, 50 Hz / 60 Hz
Power Consumption 500 W max, 300 W typical
Cooling Requirements
Laser Head Closed-loop chiller in Power Supply - Cooler
Power Supply (in Power Supply - Cooler) Air-cooled
Environmental Specifications
Operating Temperature 64-90°F (18-32°C)
Relative Humidity 8-85%, non-condensing
Laser Head - Physical Dimensions (Height x Width x Length)
2.7 x 5.3 x 10.1 inches
(69 x 135 x 256 mm)
Weight 7.0 lbs (3.2 kg) approx.
Cable Length 10 " (3 m)
Power Supply-Cooler - Physical Dimensions (Height x Width x Depth)
13.0 x 12.7 x 18.2 inches
(330 x 323 x 463 mm)
Weight 55 lbs (25 kg) approx.
Schematic setup of Trestles LH10-fs/CW laser system with built-in pump laser
Del Mar Photonics supply Trestles lasers as stand alone system, or as a
one-box system with built-in DPSS pump laser.
The price of the system with DPSS pump depends on required output power.
The standard tuning elements indicated below are used in CW Ti:Sapphire lasers such as Trestles CW or Trestles fs/CW.
Those elements are also sold separately as standrad items or as a custom made components.
1) Thick etalon -
request a quote
Thickness - 3 mm, diameter - 20 mm. Surface quality: Ð=1-2, N<1, ΔN<0.1,
λ/10, plane parallelism better than 10''. Thickness accuracy 5 um.
2) Thin etalon -
request a quote
Thickness - 200 um, diameter - 15 mm. Surface quality: Ð=1-2, N<1, ΔN<0.1,
λ/10, plane parallelism better than 10''. Thickness accuracy 5 um.
3) Birefringent filter BRF -
request a quote
We use a 3-plate assembled BRF (Lyot filter) with adjustable motorized mount
(see attached drawing).
Total losses introduced into the cavity by the filter are 5% of the lasers
output power. The FSR is defined by the thinnest plate and equals to around -
1.3*1014 Hz, while the maximum width is controlled by the thickest
plate and equals to approx. 3.1*1012 Hz.
Dimensions of plate assembly ('filter' in the picture): dia 44.5 mm, t=13.5 mm.
It should be properly aligned (Brewster to the beam) and rotated by some
rotating mount around its axis to provide wavelength tuning.
Del Mar Photonics, Inc.
4119 Twilight Ridge
San Diego, CA 92130
tel: (858) 876-3133
fax: (858) 630-2376
Skype: delmarphotonics
sales@dmphotonics.com