189 nm – 20 μm tuning range
Up to 60 mJ pump pulse energy
Up to 50% conversion efficiency
High output stability
CEP stabilization of Idler
Fresh pump channel for improved temporal and spatial properties of sum-frequency options

Overview Specs UFS (20–70 fs) Specs FS (70–200 fs) Specs PS (1–4 ps) Performance Drawings Publications Downloads

Features

189 nm – 20 μm tuning range
Up to 60 mJ pump pulse energy
Up to 50% conversion efficiency
High output stability
CEP stabilization of Idler
Fresh pump channel for improved temporal and spatial properties of sum-frequency options

Description

TOPAS-PRIME-HE is a high-energy femtosecond optical parametric amplifier based on TOPAS-PRIME with an additional high energy and low dispersion amplification stage which allows using pump pulse energy of up to 60 mJ while maintaining the shortest possible pulses at the output.

The standard TOPAS-PRIME-HE model accepts pump pulse energy of up to 8 mJ @ 35 fs (up to 20 mJ @ 100 fs), while TOPAS-PRIME-HE-PLUS accepts higher pump pulse energy, up to 18 mJ @ 35 fs (up to 47 mJ @ 100 fs). The pump pulse energy of 60 mJ is possible with longer pulses, ca. 150 fs. Both models come with wavelength extension options, covering the wavelength range from 189 nm to 20 μm for TOPAS-PRIME-HE and 240 nm to 20 μm for TOPAS-PRIME-HE-PLUS.

Specifications Notes

TOPAS-PRIME-HE and TOPAS-PRIME-HE-PLUS specifications are given for the following pump laser parameters:

800 nm wavelength
6 mJ pulse energy
1 kHz repetition rate
30 – 40 fs pulse duration
Gaussian beam

Note 1: Specifications depend on pump wavelength and pulse duration. If they differ from the values above, contact sales@lightcon.com.

Note 2: TOPAS-PRIME-HE output pulse energy scales linearly in 3 – 20 mJ range, provided the device is installed and optimized for particular pump energy. The device has to be re-optimized if the pump energy changes more than 10% from the installation value.

Pump Laser Requirements

Model	TOPAS-PRIME‑HE			TOPAS‑PRIME-HE‑PLUS
Pump wavelength	770 – 830 nm
Pump pulse duration (FWHM)	20 fs	35 fs	70 fs	20 fs	35 fs	70 fs
Pump pulse energy	2 – 5 mJ	2 – 8 mJ	2 – 15 mJ	5 – 11 mJ	8 – 18 mJ	15 – 35 mJ
Repetition rate	< 20 kHz ¹⁾
Maximum pump power	40 W
Pump polarization	Horizontal
Spectral bandwidth	< 1.2× transform limit
Pulse-to-pulse energy stability	< 1% RMS deviation ²⁾
Pulse duration stability	< 1% pulse-to-pulse
Pulse front tilt	< 10% of pulse duration
Pulse contrast	> 1 : 20
Beam quality (M²)	< 1.3
Beam astigmatism	< 0.15
Beam spatial profile	Gaussian – Hyper-Gaussian
Intensity modulation	< 15%, no hotspots
Beam pointing stability	< 10 μrad
Beam divergence	< 1.2× diffraction limit
Beam height from optical table	125 – 185 mm
Beam diameter, 1/e²	< 13.5 mm ³⁾			< 19 mm ³⁾

Maximum repetition rate for DFG1 (NDFG1) option is 1 kHz.
Normalized to average pulse energy, NRMSD.
Optional external telescope can be ordered for the beam size < 39 mm, 1/e² (69 mm clear aperture mirrors).

TOPAS-HE-PRIME & TOPAS-HE-PRIME-PLUS (1160 – 2600 nm)

Model	TOPAS-PRIME-HE	TOPAS-PRIME-HE-PLUS
Tuning range	1160 – 1600 nm (Signal) 1600 – 2600 nm (Idler)
Pulse energy at peak (Signal and Idler combined)	> 1500 μJ
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

Normalized to average pulse energy, NRMSD

VIS-UV-DUV Extensions (189 – 1160 nm)

Extension	NIRUVIS-HE-(DUV)	NIRUVIS-GE
Control	Manual change of wavelength separators
Maximum tuning range	189 – 1160 nm	240 – 1160 nm
Housing	Monolithic housing
Number of output ports	4 (wavelength-dependent)	6 (wavelength-dependent)
Available with product line	TOPAS‑HE-PRIME	TOPAS‑HE-PRIME‑PLUS

VIS Extension (475 – 1160 nm)

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
SHI	Tuning range	800 – 1160 nm
	Pulse energy at peak	> 120 μJ ¹⁾
	Pulse duration	(1 – 1.5)× pump pulse duration
	Polarization	Vertical
SHS	Tuning range	580 – 800 nm
	Pulse energy at peak	> 240 μJ ²⁾
	Pulse duration	(1 – 1.5)× pump pulse duration @ 620 – 800 nm
	Polarization	Vertical	Horizontal

> 95 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.
> 200 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
Fresh pump option		Always	Not available
SFI	Tuning range	533 – 600 nm
SFI	Pulse energy at peak	> 180 μJ
SFS	Tuning range	475 – 533 nm
SFS	Pulse energy at peak	> 240 μJ
Pulse duration		(1 – 1.5)× pump pulse duration
Polarization		Vertical

UV Extension (240 – 480 nm)

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
FHI	Tuning range	400 – 480 nm
	Pulse energy at peak	> 15 μJ ¹⁾
	Pulse duration	(1.2 – 2)× pump pulse duration
	Polarization	Horizontal
FHS	Tuning range	290 – 400 nm
	Pulse energy at peak	> 30 μJ ²⁾
	Pulse duration	(1.2 – 2)× pump pulse duration
	Polarization	Horizontal	Vertical

> 12 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.
> 24 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.

Extension		NIRUVIS-HE-DUV
SH of SFI	Tuning range	266 – 295 nm
	Pulse energy at peak	> 20 μJ ¹⁾
	Pulse duration	(1.2 – 2)× pump pulse duration
	Polarization	Horizontal
SH of SFS	Tuning range	240 – 266 nm
	Pulse energy at peak	> 20 μJ ¹⁾
	Pulse duration	< 3× pump pulse duration
	Polarization	Horizontal

> 12 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.

DUV Extension (189 – 240 nm)

Extension	NIRUVIS-HE-DUV
	Pump + FHS	Pump + SH of SFI	Pump + SH of SFS
Tuning range	215 – 240 nm	200 – 215 nm	189 – 200 nm
Pulse energy at peak	> 10 μJ ¹⁾
Polarization	Vertical

Assuming 15% of pump pulse energy into DUV channel and another 15% into fresh pump channel.

DFG Extension (2600 – 13000 nm)

Parameter	NDFG1 ^{1) 2)}	NDFG1K	NDFG2 ³⁾
Tuning range	2.6 – 9 μm	2.6 – 4.5 μm	4 – 13 μm
Pulse energy	> 17 μJ @ 4 μm	> 17 μJ @ 4 μm	> 10 μJ at peak
Pulse duration	< 3× pump pulse width	< 3× pump pulse width	Not specified
Polarization	horizontal	horizontal	horizontal

Maximum pump repetition rate is 1 kHz; crystal life time of 1000 – 2000 h.
Not available with TOPAS‑HE-PRIME-PLUS.
Extended lead time for TOPAS‑HE-PRIME-PLUS.

Specifications Notes

TOPAS-PRIME-HE and TOPAS-PRIME-HE-PLUS specifications are given for the following pump laser parameters:

800 nm wavelength
10 mJ pulse energy
1 kHz repetition rate
100 fs pulse duration
Gaussian beam

Note 1: Specifications depend on pump wavelength and pulse duration. If they differ from the values above, contact sales@lightcon.com.

Pump Laser Requirements

Model	TOPAS‑PRIME-HE			TOPAS‑PRIME-HE‑PLUS
Pump wavelength	770 – 830 nm
Pump pulse duration (FWHM)	70 fs	100 fs	150 fs	70 fs	100 fs	150 fs
Pump pulse energy	2 – 15 mJ	2 – 20 mJ	2 – 27 mJ	15 – 35 mJ	20 – 47 mJ	27 – 60 mJ
Repetition rate	< 20 kHz ¹⁾
Maximum pump power	40 W
Input Polarization	Horizontal
Spectral bandwidth	< 1.2× transform limit
Pulse-to-pulse energy stability	< 1% RMS deviation ²⁾
Pulse duration stability	< 1% pulse-to-pulse
Pulse front tilt	< 10% of pulse duration
Pulse contrast	> 1 : 20
Beam quality (M²)	< 1.3
Beam astigmatism	< 0.15
Input beam spatial profile	Gaussian – Hyper-Gaussian
Intensity modulation	< 15%, no hotspots
Beam pointing stability	< 10 μrad
Beam divergence	< 1.2× diffraction limit
Beam height from optical table	125 – 185 mm
Beam diameter, 1/e²	< 13.5 mm ³⁾			< 19 mm ³⁾

Maximum repetition rate for DFG1 (NDFG1) option is 1 kHz.
Normalized to average pulse energy, NRMSD
Optional external telescope can be ordered for the beam size < 39 mm 1/e² (69 mm clear aperture mirrors).

TOPAS-HE-PRIME & TOPAS-HE-PRIME-PLUS (1160 – 2600 nm)

Model	TOPAS-PRIME-HE	TOPAS-PRIME-HE-PLUS
Tuning range (Signal and Idler combined)	1160 – 2600 nm
Pulse energy at peak (Signal and Idler combined)	> 2500 μJ
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

Normalized to average pulse energy, NRMSD

VIS-UV-DUV Extensions

Extension	NIRUVIS-HE‑(DUV)	NIRUVIS-GE
Control	Manual change of wavelength separators
Maximum Tuning range	189 – 1160 nm	240 – 1160 nm
Housing	Monolithic housing
Number of output ports	4 (wavelength-dependent)	6 (wavelength-dependent)
Available with product line	TOPAS-HE‑PRIME	TOPAS-HE‑PRIME‑PLUS

VIS Extension (475 – 1160 nm)

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
SHI	Tuning range	800 – 1160 nm
	Pulse energy at peak	> 300 μJ ¹⁾
	Pulse duration	(0.7 – 1)× pump pulse duration
	Polarization	Vertical
SHS	Tuning range	580 – 800 nm
	Pulse energy at peak	> 800 μJ ²⁾
	Pulse duration	(0.7 – 1)× pump pulse duration
	Polarization	Vertical	Horizontal

> 250 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.
> 650 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
Fresh pump option		Always	Not available
SFI	Tuning range	533 – 600 nm
SFI	Pulse energy at peak	> 500 μJ
SFS	Tuning range	475 – 533 nm
SFS	Pulse energy at peak	> 700 μJ
Pulse duration		(0.8 – 1.2)× pump pulse duration
Polarization		Vertical

UV Extension (240 – 480 nm)

Extension		NIRUVIS-HE-(DUV)	NIRUVIS-GE
FHI	Tuning range	400 – 480 nm
	Pulse energy at peak	> 70 μJ ¹⁾
	Pulse duration	(0.7 – 1)× pump pulse duration
	Polarization	Horizontal
FHS	Tuning range	290 – 400 nm
	Pulse energy at peak	> 150 μJ ²⁾
	Pulse duration	(0.8 – 1.2)× pump pulse duration
	Polarization	Horizontal	Vertical

> 60 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.
> 120 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.

Extension		NIRUVIS-HE-(DUV)
SH of SFI	Tuning range	266 – 295 nm
	Pulse energy at peak	> 60 μJ ¹⁾
	Pulse duration	(0.8 – 1.2)× pump pulse duration
	Polarization	Horizontal
SH of SFS	Tuning range	240 – 266 nm
	Pulse energy at peak	> 80 μJ ¹⁾
	Pulse duration	< 1.5× pump pulse duration
	Polarization	Horizontal

> 40 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.
> 50 μJ at peak when equipped with DUV, due to additional pump pulse energy into DUV option.

DUV Extension (189 – 240 nm)

Extension ¹⁾	NIRUVIS-HE-DUV
	Pump + FHS	Pump + SH of SFI	Pump + SH of SFS
Tuning range	215 – 240 nm	200 – 215 nm	189 – 200 nm
Pulse energy at peak	> 30 μJ
Polarization	Vertical

Assuming 15% of pump pulse energy into DUV channel and another 15% into fresh pump channel.

DFG Extension (2600 – 20000 nm)

Extension	NDFG1 ^{1) 2)}	NDFG1K	NDFG2 ³⁾
Tuning range	2.6 – 11 μm	2.6 – 4.9 μm	4 – 20 μm
Pulse energy	> 80 μJ @ 4 μm	> 80 μJ @ 4 μm	> 40 μJ at peak
Pulse duration	< 2× pump pulse width	< 2× pump pulse width	Not specified
Polarization	Horizontal	Horizontal	Horizontal

Maximum pump repetition rate – 1 kHz. Limited crystal life time of 1000 – 2000 h.
Not available with TOPAS-PRIME‑HE-PLUS.
Extended lead time for TOPAS-PRIME-HE-PLUS.

Contact sales@lightcon.com for specifications.

Performance

TOPAS-PRIME-HE tuning curves. Pump: 22 mJ, 45 fs, 805 nm.

CEP STABILIZATION OF IDLER

TOPAS Idler (1600 – 2600 nm) is passively CEP locked due to a three-wave interaction. However, a slow CEP drift may persist because of changes in pump beam pointing or environmental conditions. Such a drift can be compensated by employing an f-2f interferometer and a feedback loop controlling the temporal delay between seed and pump in the power amplification stage of TOPAS-PRIME and TOPAS-PRIME-HE.