-- covering 410nm to 2500nm start at $9,000
- low cost, high efficiency, price starts at
$9,000(US Price), $13,000 fully automatic computer control
CASIX
BBO-3B I OPO is the most affordable and the most efficienct OPO in the market --
up to 65% efficiency. Its simple design also lends to its reliability.
Specifications:
| Specification | Value | Comments |
| Tuning Range | 410 nm to 2500 nm | pumped @ 355 nm, single optics set |
| Nd:YAG pump 1 requirement | <20 MW/cm2 lasing threshold 2 | smooth profile (gaussian or flat top) |
| Output pulse energy | see power spectrum | efficiency depends on total pump energy |
| Bandwidth | see bandwidth spectrum | nominal value, depends on pump source |
| Pulse width | 1-2 ns shorter than pump pulse | depends on actual pump pulse length |
| Beam diameter 3 | 2-7 mm | depends on input pump size |
*All specifications are subject to change without notice.
1 CASIX BBO-3B has been tested and proven to work well with most existing ns pulsed Nd:YAG lasers that have a Gaussion output coupling mirror. These systems include all the GCR models from Spectra-Physics, PowerLite series from Continuum and many others, even non TEM00 mode pump sources.
2 Lasting threshold depends on the model of the BBO-3B I. CASIX offers three models for BBO-3B I. Model HE is the High Efficiency model whose lasing threhsold is below 20 MW/cm2. Model S is the Standard model whose lasing threhsold is below 30 MW/cm2,r –¾’©11, and has a smaller beam divergence. Model R is the Ring cavity model, whose lasing threshold is also below 30 MW/cm2, and has the highest damage threshold.
3 Beam diameter depends on input pump beam size. The value given in the table are measured right after the output coupler of the OPO cavity.
Power spectrum of BBO-3B I model HE, pump
beam diameter 5.5 mm, total pump energy 135 mJ. (Pump laser is a GCR-16 Nd:YAG laser from
Spectra-Physics, 355 nm pump pulse length 7-8 ns).
BBO-3B I
Bandwidth spectrum of BBO-3B I model HE
with the same pump specification as the chart above. The pump laser is also operating on a
single longitudinal mode. Nd:YAG pump lasers without a seeder will see a 50% to 100%
increase in bandwidth across the tuning range.
Physical Layout(model HE and model S)
All dimensions in inch(mm)
Other Broadband OPOs, OPO Doublers & Accessories
With other high quality NLO crystals, CASIX also offers the BBO-2B and KTP-2B which are pumped at 532 nm. They could extend the spectrum out to 4 mm. CASIX OPO Doublers will cover the spectrum from 210 nm to 420 nm, and with our special designs it could reach a doubling efficiency of 45% -- the highest efficiency in the market.
Upgradability
BBO-3B I could be upgraded conveniently in two ways -- model HE and model S could be upgraded to BBO-3B II; model R could be upgraded to Dye Laser Seeded or Diode Laser Seeded OPOs.
BBO-3B II
-- a simple way to a consistently narrow
bandwidth
By using a type II BBO crystal instead of a type I BBO crystal, the BBO-3B II gives a consistently narrow bandwidth over the same tuning range as the BBO-3B I while maintaining the simple design of the BBO-3B I and high efficiency. The efficiency for doubling the narrow band-width output of this OPO is as high as 45%.
Specifications
| Specification | Value | Comments |
| Tuning Range | 410 nm to 2400 nm | pumped @ 355 nm, single optics set |
| Nd:YAG pump requirement | <80 MW/cm2 lasing threshold | smooth profile (gaussian or flat top) |
| Output pulse energy | see power spectrum | efficiency depends on pump energy |
| Bandwidth | < 6 cm-1 | maximum bandwidth |
| Pulse width | 1-2 ns shorter than pump pulse | depends on actual pump pulse length |
| Beam diameter | 2-5 mm | depends on input pump size |
*All specifications are subject to change without notice.
1 Bandwidth depends on pump intensity, beam size, divergence and pump bandwidth. For single frequency pump sources the maximum bandwidth ranges from sub-cm-1 to below 2 cm-1, e.g. from 1500nm to 2200nm BBO-3B II gives <1 cm-1 resolution.
Photoacoustic spectrum of ammonia taken with the BBO-3B II with 5mJ energy in the 1.9mm region.
Power Spectrum of the BBO-3B II, pumped by 145mJ at
355nm. The pump laser is a Spectra-Physics GCR-16 Nd:YAG laser operating in single
frequency mode. SHG covering 208nm to 415nm is achieved with three BBO crystals.
Physical Layout:
Same as BBO-3B I, could be upgraded from BBO-3B I by changing the modularized tuning block.
Photo-acoustic Cell -- an enconomic way to calibrate narrow
bandwidth IR lasers
OPOs have extended the laser radiation from visible to the Infra-Red, and have opened a new area for spectroscopists, and the demand to accurately calibrate laser wavelength/bandwidth in the IR is high.
Based on photo-acoustic signal, photo-acoustic cells provide a simple and reliable way to calibrate laser wavelength/bandwidth in the IR. CASIX is pleased to announce the Photo-acoustic cell from CASIX.
This CASIX photo-acoustic cell comes with a gas volume of 12ml, equipped with stainless valve for the control of gas flow and standard 1/4” Tube connectors. The two windows are made of UV grade fused silica and Sapphire respectively. This allow the users to calibrate wavelengths from 200 nm to 5 mm, without having to change the optics. A micro-speakerphone which is most sensitive to sound at the photo-acoustic frequency is used to give maximum signal to noise ratio. The cell body is composed of a nickel-coated aluminum, allow you to use a variety of gases with this cell. Measurements can be performed from 2 atmospheric pressures to a few milli-torr. Pre-amplified signal output is in a standard BNC connector, could be directly connect to the Oscilloscope.
Specifications:
| Cell Volume | Windows | Pressure | Gas Fittings | Price |
| 12 ml | Sapphire & UV Fused Silica | 10-3 - 2000Torr | 1/4” Tube fitting | $3,000 w/ PreAmp $1,500 w/out PreAmp |
Physical Layout:
Customized Dye laser seeded OPO BBO-3D
- affordable, reliable, excellent performance
Based on our patented ring cavity, CASIX now introduces the Customized Dye Laser Seeded OPO. Designed to work with many existing dye lasers, this system is the most affordable, high resolution OPO system in the market. You will be satisfied by its un-matched reliability and performance. The unique design gives the OPO automatic walk-off compensation, high damage threshold and easy alignment.
Specifications:
| Specification | Value | Comments |
| Tuning Range | 410nm to 2500nm | pumped @ 355nm, single optics set |
| Nd:YAG pump requirement1 | <30 MW/cm2 lasing threshold | single frequency, smooth profile (gaussian or flat top) |
| Output pulse energy | see power spectrum | efficiency depends on total pump energy |
| Bandwidth | same as dye oscillator | depends on customized dye oscillator |
| Dye Oscillator Requirement | >1 mJ/pulse | dye oscillator could be pumped at either 355nm or 532nm |
| Pulse width | 1-2 ns shorter than pump pulse | depends on actual pump pulse length |
| Long term stability | same as dye oscillator | more reliable than crystal oscillators |
*All specifications are subject to change without notice.
Physical Layout (oscillator only, also for BBO-3B model R)
All dimensions in inch(mm)
We provide on-site installation, in which we incoporate the oscillator with Power spectrum of BBO-3D, also BBO-3B model R
your dye laser pumped by 115mJ at 355nm
Diode laser seeded OPO BBO-2S,
KTP-2S, - transform limited resolution, reliable and
efficient
Based on the patented ring cavity used in BBO-3D, our diode laser seeded OPO allows one to seed the ring cavity without active control of the cavity length, thus significantly improving the stability of the system. In our standard model, we offer you a complete system which includes the tunable diode laser and the OPO cavity. With available diodes in the market right now, this OPO covers 650nm to 2200nm when pumped by the second harmonics from a seeded Nd:YAG source.
Specifications:
| Specification | Value | Comments |
| Nd:YAG pump requirement1 | <30 MW/cm2 lasing threshold | single frequency, smooth profile (gaussian or flat top) |
| Output pulse energy | see power spectrum | efficiency depend on total pump energy |
| Bandwidth | down to 0.01 cm-1 | close to transform limited resolution |
| Seed laser requirepment | >1mW CW source | single mode diode laser or CW dye laser |
| Long term stability | same as seed source | the most stable OPOs in the market |
*All specifications are subject to change without notice.
Optical layout
Power Spectrum (pumped by 115mJ at 355nm)
BBO-3B II Et -- a low cost approach for high resolution
By adding an etalon inside BBO-3B II OPO device, the BBO-3B II Et gives an easy approach to get high resolution out of an OPO system. The insertion of the etalon model is very straight forward and the whole spectral range of the BBO-3B II OPO could be covered by 5 sets of etalons. Two resolution options are offered.
Specifications
| Specification | Value | Comments |
| Tuning Range | 420 nm ~ 580 nm, 900 nm ~ 2200 nm |
pumped @ 355 nm |
| Nd:YAG pump requirement | >100mJ @ 355nm, narrow bandwidth, SLM preferred | smooth profile (gaussian or flat top) |
| Bandwidth | 0.2cm-1 or 0.01cm-1, depends on choice of etalon | we offer 0.2cm-1 and 0.01cm-1 as two options |
| Pulse width | 2 ns shorter than pump pulse | depends on actual pump pulse length |
| Beam diameter | 2-5 mm | depends on input pump beam size |
*All specifications are subject to change
without notice.
1. For your specific pump laser, please consult with CASIX for suitability for pumping BBO-3B II Et.
Physical Layout:
Same as BBO-3B II, could be upgraded from BBO-3B II by adding the modularized tuning block for BBO-3B Et.
- value, performance and peace of mind
When you think about purchasing an OPO, you also have to think about the maintenance. At CASIX, we give you peace of mind when you purchase CASIX OPO products -- we offer you one year free service on repolishing and recoating of NLO crystals.
List Price (US only)
F BBO-3B (manual control, choose type I + model HE, S or R) $9,000
BBO-3B (manual control, choose type II) $12,000
Broadband OPOs based on other NLO crystals will be close to this price, call for pricing
On-site installation +$2,000
Computer control +$4,000
Realtime wavelength calibration option, user friendly +$4,000
F BBO-3D (including on-site installation & computer control) from $20,000
Customized Dye Laser Seeded OPOs based on other NLO crystals will be close to this price, call for pricing
F BBO-2S (including one Diode laser head, computer control) $45,000
Diode Laser Seeded OPOs based on other NLO crystals (KTP and KNbO3) will be close to this price, call for pricing
'©11F KTP-1E eye-safe OPO laser $9,900
Eye-safe OPO based on KTP delivers >10mJ/pulse at hi-repetition rate,
wavelength option: 1.54mm or 1.61mm
Useful accessories:
F OPO Doublers for BBO-3B, BBO-3D (covering 210nm to 450nm) $15,000
Computer control option +$5,000
F For other frequency conversion systems covering VUV to IR, call for pricing
Affordable Parts/Service:
F Replace/Trade in crystals, a 25% discount below our normal quote price
F Repolishing and recoating, first year free, and $350 for each time afterwards