TOPAS-TWINS Dual OPA – LIGHT CONVERSION

Dual Optical Parametric Amplifier

TOPAS-TWINS Two Independently Tunable Optical Parametric Amplifiers.

Two independently tunable outputs
240 nm – 20 μm tuning range in each channel
> 25% conversion efficiency
High output stability

Download datasheet

TOPAS-TWINS is a dual optical parametric amplifier (OPA) consisting of two independently tunable OPAs integrated into a single housing. Both OPAs share the same white light source, providing excellent output stability and delivering CEP-stabilized mid-IR pulses in a 4.5 – 15 μm tuning range.

Each OPA includes wavelength extension options, covering a 240 nm to 20 μm range. Output specifications for each OPA are the same as those of TOPAS-PRIME. The maximum pump pulse energy depends on the pulse duration; refer to the specifications for more details.

Ultrafast (20–70 fs)

Specifications notes

TOPAS-TWINS specifications are given for the following pump laser parameters:

Wavelength: 800 nm
Pulse energy: 1 mJ
Repetition rate: 1 kHz
Pulse duration: 30 – 40 fs
Beam profile: Gaussian

Note 1: Specifications are given for a single TOPAS-TWINS channel.

Note 2: Specifications depend on the pump wavelength and pulse duration. If these differ from the values listed above, contact sales@lightcon.com.

Note 3: TOPAS-TWINS channel output pulse energy scales linearly within the 1 – 4 mJ range, provided the device is installed and optimized for a specific pump energy. Re-optimization is required if the pump energy changes by more than 10% from the installation value.

Pump laser requirements


OPA channel	OPA-1	OPA-2
Pump wavelength	770 – 830 nm	770 – 830 nm
Pump wavelength	770 – 830 nm
Pump pulse duration (FWHM)	20 – 70 fs	20 – 70 fs
Pump pulse duration (FWHM)	20 – 70 fs
Pump pulse energy	0.15 – 1 mJ	0.15 – 4 mJ
Repetition rate	< 25 kHz ¹⁾	< 25 kHz ¹⁾
Repetition rate	< 25 kHz ¹⁾
Maximum pump power	15 W into each OPA ²⁾	15 W into each OPA ²⁾
Maximum pump power	15 W into each OPA ²⁾
Pump polarization	Horizontal	Horizontal
Pump polarization	Horizontal
Spectral bandwidth	< 1.2 × transform limit	< 1.2 × transform limit
Spectral bandwidth	< 1.2 × transform limit
Pulse-to-pulse energy stability	< 1% RMS deviation ³⁾	< 1% RMS deviation ³⁾
Pulse-to-pulse energy stability	< 1% RMS deviation ³⁾
Pulse duration stability	< 1% pulse-to-pulse ⁴⁾	< 1% pulse-to-pulse ⁴⁾
Pulse duration stability	< 1% pulse-to-pulse ⁴⁾
Pulse front tilt	< 10% of pulse duration	< 10% of pulse duration
Pulse front tilt	< 10% of pulse duration
Pulse contrast	< 1 : 20	< 1 : 20
Pulse contrast	< 1 : 20
Beam quality, M²	< 1.3 ⁵⁾	< 1.3 ⁵⁾
Beam quality, M²	< 1.3 ⁵⁾
Beam astigmatism	< 0.15 ⁶⁾	< 0.15 ⁶⁾
Beam astigmatism	< 0.15 ⁶⁾
Beam spatial profile	Gaussian – Super Gaussian	Gaussian – Super Gaussian
Beam spatial profile	Gaussian – Super Gaussian
Intensity modulation	< 15%, no hotspots ⁷⁾	< 15%, no hotspots ⁷⁾
Intensity modulation	< 15%, no hotspots ⁷⁾
Beam pointing stability	< 10 μrad ⁸⁾	< 10 μrad ⁸⁾
Beam pointing stability	< 10 μrad ⁸⁾
Beam divergence	< 1.2 × diffraction limit	< 1.2 × diffraction limit
Beam divergence	< 1.2 × diffraction limit
Beam height from the optical table	125 – 185 mm	125 – 185 mm
Beam height from the optical table	125 – 185 mm
Beam diameter, 1/e²	< 9.5 mm ⁹⁾	< 9.5 mm ⁹⁾
Beam diameter, 1/e²	< 9.5 mm ⁹⁾


OPA channel	OPA-1	OPA-2

The maximum repetition rate for DFG1 (NDFG1) option is 1 kHz.
Contact sales@lightcon.com for higher pump power options.
Normalized to average pulse energy. Expressed as normalized root mean squared deviation (NRMSD).
Normalized to average pulse duration. Expressed as NRMSD.
M² specification valid for Gaussian beam.
Normalized astigmatism – difference of the waist positions, divided by Raleigh length.
Normalized to Gaussian or Super-Gaussian fits. Expressed as NRMSD.
Expressed as NRMSD, full angle.
An optional external telescope can be ordered for a beam diameter of 9.5 – 28 mm.

Output


Model	TOPAS-TWINS
Tuning range (Signal and Idler combined)	1160 – 1600 nm (Signal) 1600 – 2600 nm (Idler)
Conversion efficiency at peak (Signal and Idler combined)	> 25%
Pulse duration	(1 – 1.5) × pump pulse duration @ 1160 – 1550 nm < 2 × pump pulse duration @ 1550 – 2600 nm
Time-bandwidth product	< 1
Polarization	Vertical (Signal) Horizontal (Idler)
Pulse-to-pulse energy stability	< 3% RMS deviation ¹⁾ @ 1160 – 1550 nm


Model	TOPAS-TWINS

Normalized to average pulse energy. Expressed as NRMSD.

VIS–UV extensions (240 – 1160 nm)


Extension	Standard NIRUVIS	Separate mixer stage(s)
Level of computer control	Manual change of wavelength separators	Manual change of wavelength separators
Level of computer control	Manual change of wavelength separators
Maximum tuning range	240 – 1160 nm	240 – 1160 nm
Maximum tuning range	240 – 1160 nm
Housing	Monolithic housing	No common housing
Number of output ports	Four ¹⁾	Four ¹⁾
Number of output ports	Four ¹⁾


Extension	Standard NIRUVIS	Separate mixer stage(s)

Output ports are wavelength-dependent.

VIS extensions (475 – 1160 nm)


Extension	Standard NIRUVIS	Separate mixer stage
SHI (800 – 1160 nm)
Tuning range	800 – 1160 nm	800 – 1160 nm
Tuning range	800 – 1160 nm
Conversion efficiency at peak	> 2%	> 1.5%
Pulse duration	(1 – 1.5) × pump pulse duration	(1 – 1.5) × pump pulse duration
Pulse duration	(1 – 1.5) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical
SHS (580 – 800 nm)
Tuning range	580 – 800 nm	580 – 800 nm
Tuning range	580 – 800 nm
Conversion efficiency at peak	> 3%	> 3%
Conversion efficiency at peak	> 3%
Pulse duration	(1 – 1.5) × pump pulse duration @ 620 – 800 nm	(1 – 1.5) × pump pulse duration @ 620 – 800 nm
Pulse duration	(1 – 1.5) × pump pulse duration @ 620 – 800 nm
Polarization	Vertical	Horizontal
SFI (533 – 600 nm)
Fresh pump option	Not available	Not available
Fresh pump option	Not available
Tuning range	533 – 600 nm	533 – 600 nm
Tuning range	533 – 600 nm
Conversion efficiency at peak	> 3%	> 3%
Conversion efficiency at peak	> 3%
Pulse duration	(1 – 1.5) × pump pulse duration	(1 – 1.5) × pump pulse duration
Pulse duration	(1 – 1.5) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical
SFS (475 – 533 nm)
Fresh pump option	Not available	Not available
Fresh pump option	Not available
Tuning range	475 – 533 nm	475 – 533 nm
Tuning range	475 – 533 nm
Conversion efficiency at peak	> 4%	> 4%
Conversion efficiency at peak	> 4%
Pulse duration	(1 – 1.5) × pump pulse duration	(1 – 1.5) × pump pulse duration
Pulse duration	(1 – 1.5) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical


Extension	Standard NIRUVIS	Separate mixer stage

UV extensions (240 – 480 nm)


Extension	Standard NIRUVIS	Separate mixer stage
FHI (400 – 480 nm)
Tuning range	400 – 480 nm	400 – 480 nm
Tuning range	400 – 480 nm
Conversion efficiency at peak	> 0.4%	> 0.25%
Pulse duration	(1.2 – 2) × pump pulse duration	(1.2 – 2) × pump pulse duration
Pulse duration	(1.2 – 2) × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal
FHS (290 – 400 nm)
Tuning range	290 – 400 nm	290 – 400 nm
Tuning range	290 – 400 nm
Conversion efficiency at peak	> 0.5%	> 0.5%
Conversion efficiency at peak	> 0.5%
Pulse duration	(1.2 – 2) × pump pulse duration	(1.2 – 2) × pump pulse duration
Pulse duration	(1.2 – 2) × pump pulse duration
Polarization	Horizontal	Vertical
SH of SFI (266 – 295 nm)
Tuning range	266 – 295 nm	266 – 295 nm
Tuning range	266 – 295 nm
Conversion efficiency at peak	> 0.3%	> 0.3%
Conversion efficiency at peak	> 0.3%
Pulse duration	(1.2 – 2) × pump pulse duration	(1.2 – 2) × pump pulse duration
Pulse duration	(1.2 – 2) × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal
SH of SFS (240 – 266 nm)
Tuning range	240 – 266 nm	240 – 266 nm
Tuning range	240 – 266 nm
Conversion efficiency at peak	> 0.3%	> 0.3%
Conversion efficiency at peak	> 0.3%
Pulse duration	3 × pump pulse duration	3 × pump pulse duration
Pulse duration	3 × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal


Extension	Standard NIRUVIS	Separate mixer stage

DFG extensions (2600 – 13000 nm)


Extension	NDFG1W ¹⁾	NDFG1K ²⁾	NDFG2	SIG-SIG NDFG
Tuning range	2.6 – 9 μm	2.6 – 4.5 μm	4 – 13 μm	4 – 13 μm
Conversion efficiency at peak	> 0.2%	> 0.4%	> 0.2%	> 0.15%
Pulse duration	< 3× pump pulse duration	< 3× pump pulse duration	Not specified	Not specified
Pulse duration	< 3× pump pulse duration		Not specified
Polarization	Horizontal	Horizontal	Horizontal	Horizontal
Polarization	Horizontal


Extension	NDFG1W ¹⁾	NDFG1K ²⁾	NDFG2	SIG-SIG NDFG

Maximum pump repetition rate – 1 kHz. Limited crystal lifetime of 1000 – 2000 h.
Not available in the collinear configuration.

Dimensions


Model	TOPAS-TWINS
General dimension of the housing (W × L × H)	350 × 680 × 156 mm
NIRUVIS housing dimensions (W × L × H)	230 × 450 × 156 mm
DFG/NDFG housing dimensions (W × L × H)	230 × 330 × 156 mm


Model	TOPAS-TWINS

Fast (70–200 fs)

Specifications notes

TOPAS-TWINS specifications are given for the following pump laser parameters:

Wavelength: 800 nm
Pulse energy: 1 mJ
Repetition rate: 1 kHz
Pulse duration: 100 – 150 fs
Beam profile: Gaussian

Note 1: Specifications are given for a single TOPAS-TWINS channel.

Note 2: Specifications depend on the pump wavelength and pulse duration. If these differ from the values listed above, contact sales@lightcon.com.

Note 3: TOPAS-TWINS channel output pulse energy scales linearly within the 1 – 4.5 mJ range, provided the device is installed and optimized for a specific pump energy. Re-optimization is required if the pump energy changes by more than 10% from the installation value.

Pump laser requirements


OPA channel	OPA‑1	OPA‑2
Pump wavelength	770 – 830 nm	770 – 830 nm
Pump wavelength	770 – 830 nm
Pump pulse duration (FWHM)	70 – 200 fs	70 – 200 fs
Pump pulse duration (FWHM)	70 – 200 fs
Pump pulse energy	0.15 – 1.5 mJ	0.15 – 4.5 mJ
Repetition rate	< 25 kHz ¹⁾	< 25 kHz ¹⁾
Repetition rate	< 25 kHz ¹⁾
Maximum pump power	15 W into each OPA ²⁾	15 W into each OPA ²⁾
Maximum pump power	15 W into each OPA ²⁾
Pump polarization	Horizontal	Horizontal
Pump polarization	Horizontal
Spectral bandwidth	< 1.2 × transform limit	< 1.2 × transform limit
Spectral bandwidth	< 1.2 × transform limit
Pulse-to-pulse energy stability	< 1% RMS deviation ³⁾	< 1% RMS deviation ³⁾
Pulse-to-pulse energy stability	< 1% RMS deviation ³⁾
Pulse duration stability	< 1% pulse-to-pulse ⁴⁾	< 1% pulse-to-pulse ⁴⁾
Pulse duration stability	< 1% pulse-to-pulse ⁴⁾
Pulse front tilt	< 10% of pulse duration	< 10% of pulse duration
Pulse front tilt	< 10% of pulse duration
Pulse contrast	< 1 : 20	< 1 : 20
Pulse contrast	< 1 : 20
Beam quality, M²	< 1.3 ⁵⁾	< 1.3 ⁵⁾
Beam quality, M²	< 1.3 ⁵⁾
Beam astigmatism	< 0.15 ⁶⁾	< 0.15 ⁶⁾
Beam astigmatism	< 0.15 ⁶⁾
Beam spatial profile	Gaussian – Super Gaussian	Gaussian – Super Gaussian
Beam spatial profile	Gaussian – Super Gaussian
Intensity modulation	< 15%, no hotspots ⁷⁾	< 15%, no hotspots ⁷⁾
Intensity modulation	< 15%, no hotspots ⁷⁾
Beam pointing stability	< 10 μrad ⁸⁾	< 10 μrad ⁸⁾
Beam pointing stability	< 10 μrad ⁸⁾
Beam divergence	< 1.2 × diffraction limit	< 1.2 × diffraction limit
Beam divergence	< 1.2 × diffraction limit
Beam height from the optical table	125 – 185 mm	125 – 185 mm
Beam height from the optical table	125 – 185 mm
Beam diameter, 1/e²	< 9.5 mm ⁹⁾	< 9.5 mm ⁹⁾
Beam diameter, 1/e²	< 9.5 mm ⁹⁾


OPA channel	OPA‑1	OPA‑2

The maximum repetition rate for DFG1 (NDFG1) option is 1 kHz.
Contact sales@lightcon.com for higher pump power options.
Normalized to average pulse energy. Expressed as normalized root mean squared deviation NRMSD.
Normalized to average pulse duration. Expressed as NRMSD.
M² specification valid for Gaussian beam.
Normalized astigmatism – difference of the waist positions, divided by Raleigh length.
Normalized to Gaussian or Super-Gaussian fits. Expressed as NRMSD.
Expressed as NRMSD, full angle.
An optional external telescope can be ordered for a beam diameter of 9.5 – 28 mm.

Output


Model	TOPAS-TWINS
Tuning range	1160 – 1600 nm (Signal) 1600 – 2600 nm (Idler)
Conversion efficiency at peak (Signal and Idler combined)	> 25%
Pulse duration	(0.7 – 1) × pump pulse
Time-bandwidth product	< 1
Polarization	Vertical (Signal) Horizontal (Idler)
Pulse-to-pulse energy stability	< 2% RMS deviation ¹⁾ @ 1160 – 1550 nm


Model	TOPAS-TWINS

Normalized to average pulse energy. Expressed as NRMSD.

VIS–UV extensions (240 – 1160 nm)


Extension	Standard NIRUVIS	Separate mixer stage(s)
Control	Manual change of wavelength separators	Manual change of wavelength separators
Control	Manual change of wavelength separators
Maximum tuning range	240 – 1160 nm	240 – 1160 nm
Maximum tuning range	240 – 1160 nm
Housing	Monolithic housing	No common housing
Number of output ports	Four ¹⁾	Four ¹⁾
Number of output ports	Four ¹⁾


Extension	Standard NIRUVIS	Separate mixer stage(s)

Output ports are wavelength-dependent.

VIS extensions (475 – 1160 nm)


Extension	Standard NIRUVIS	Separate mixer stage
SHI (800 – 1160 nm)
Tuning range	800 – 1160 nm	800 – 1160 nm
Tuning range	800 – 1160 nm
Conversion efficiency at peak	> 5%	> 3%
Pulse duration	(0.7 – 1) × pump pulse duration	(0.7 – 1) × pump pulse duration
Pulse duration	(0.7 – 1) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical
SHS (580 – 800 nm)
Tuning range	580 – 800 nm	580 – 800 nm
Tuning range	580 – 800 nm
Conversion efficiency at peak	> 8%	> 8%
Conversion efficiency at peak	> 8%
Pulse duration	(0.7 – 1) × pump pulse duration	(0.7 – 1) × pump pulse duration
Pulse duration	(0.7 – 1) × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal
SFI (533 – 600 nm)
Fresh pump option	Not available	Not available
Fresh pump option	Not available
Tuning range	533 – 600 nm	533 – 600 nm
Tuning range	533 – 600 nm
Conversion efficiency at peak	> 5%	> 5%
Conversion efficiency at peak	> 5%
Pulse duration	(0.7 – 1) × pump pulse duration	(0.7 – 1) × pump pulse duration
Pulse duration	(0.7 – 1) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical
SFS (475 – 533 nm)
Fresh pump option	Not available	Not available
Fresh pump option	Not available
Tuning range	475 – 533 nm	475 – 533 nm
Tuning range	475 – 533 nm
Conversion efficiency at peak	> 7%	> 7%
Conversion efficiency at peak	> 7%
Pulse duration	(0.8 – 1.2) × pump pulse duration	(0.8 – 1.2) × pump pulse duration
Pulse duration	(0.8 – 1.2) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical


Extension	Standard NIRUVIS	Separate mixer stage

UV extensions (240 – 480 nm)


Extension	Standard NIRUVIS	Separate mixer stage
FHI (400 – 480 nm)
Tuning range	400 – 480 nm	400 – 480 nm
Tuning range	400 – 480 nm
Conversion efficiency at peak	> 1.5%	> 0.6%
Pulse duration	(0.7 – 1) × pump pulse duration	(0.7 – 1) × pump pulse duration
Pulse duration	(0.7 – 1) × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal
FHS (290 – 400 nm)
Tuning range	290 – 400 nm	290 – 400 nm
Tuning range	290 – 400 nm
Conversion efficiency at peak	> 1.5%	> 1.5%
Conversion efficiency at peak	> 1.5%
Pulse duration	(0.8 – 1.2) × pump pulse duration	(0.8 – 1.2) × pump pulse duration
Pulse duration	(0.8 – 1.2) × pump pulse duration
Polarization	Vertical	Vertical
Polarization	Vertical
SH of SFI (266 – 295 nm)
Tuning range	266 – 295 nm	266 – 295 nm
Tuning range	266 – 295 nm
Conversion efficiency at peak	> 0.7%	> 0.7%
Conversion efficiency at peak	> 0.7%
Pulse duration	(0.8 – 1.2) × pump pulse duration	(0.8 – 1.2) × pump pulse duration
Pulse duration	(0.8 – 1.2) × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal
SH of SFS (240 – 266 nm)
Tuning range	240 – 266 nm	240 – 266 nm
Tuning range	240 – 266 nm
Conversion efficiency at peak	> 0.8%	> 0.8%
Conversion efficiency at peak	> 0.8%
Pulse duration	< 1.5 × pump pulse duration	< 1.5 × pump pulse duration
Pulse duration	< 1.5 × pump pulse duration
Polarization	Horizontal	Horizontal
Polarization	Horizontal


Extension	Standard NIRUVIS	Separate mixer stage

DFG extensions (2600 – 20000 nm)


Extension	NDFG1W ¹⁾	NDFG1K ²⁾	NDFG2	SIG-SIG NDFG
Tuning range	2.6 – 11 μm	2.6 – 4.9 μm	4 – 20 μm	4.5 – 16 μm
Conversion efficiency at peak	> 0.8%	> 1%	> 0.6%	> 0.25%
Pulse duration	< 2 × pump pulse duration	< 2 × pump pulse duration	Not specified	Not specified
Pulse duration	< 2 × pump pulse duration		Not specified
Polarization	Horizontal	Horizontal	Horizontal	Horizontal
Polarization	Horizontal


Extension	NDFG1W ¹⁾	NDFG1K ²⁾	NDFG2	SIG-SIG NDFG

Maximum pump repetition rate – 1 kHz; crystal lifetime of 1000 – 2000 h.
Not available in the collinear configuration.

Dimensions


Model	TOPAS-TWINS
General dimension of the housing (W × L × H)	350 × 680 × 156 mm
NIRUVIS housing dimensions (W × L × H)	230 × 450 × 156 mm
DFG/NDFG housing dimensions (W × L × H)	230 × 330 × 156 mm


Model	TOPAS-TWINS

Drawings

Publications

TOPAS-TWINS

Ultrafast control of magnetic interactions via light-driven phonons

D. Afanasiev, J. R. Hortensius, B. A. Ivanov, A. Sasani, E. Bousquet et al.

Nature Materials • 2021

TOPAS-TWINS

Ultrafast phononic switching of magnetization

A. Stupakiewicz, C. S. Davies, K. Szerenos, D. Afanasiev, K. S. Rabinovich et al.

Nature Physics • 2021

Transient absorption spectroscopy Transient absorption microscopy PHAROS TOPAS-TWINS

Carrier Transport Across a CdSxSe1–x Lateral Heterojunction Visualized by Ultrafast Microscopy

D. D. Blach, W. Zheng, H. Liu, A. Pan, and L. Huang

The Journal of Physical Chemistry C • 2020

Transient absorption spectroscopy TOPAS-TWINS

Ultrafast structural changes within a photosynthetic reaction centre

R. Dods, P. Båth, D. Morozov, V. A. Gagnér, D. Arnlund et al.

Nature • 2020

Transient absorption spectroscopy TOPAS-TWINS

Femtosecond optical polarization switching using a cadmium oxide-based perfect absorber

Y. Yang, K. Kelley, E. Sachet, S. Campione, T. S. Luk et al.

Nature Photonics • 2017

Downloads

Datasheets

TOPAS Optical Parametric Amplifiers for Ti:Sapphire Lasers

Product datasheet

Download

Catalogs

Wavelength-Tunable Sources

Product catalog

Download

Femtosecond Laser Systems for Industry & Science

Product catalog

Download

飞秒激光器飞秒科研系统

Product catalog in Chinese

Download