ORPHEUS-MIR is an optical parametric amplifier (OPA) optimized for the efficient generation of broad-bandwidth MIR pulses. The laser system provides broadband pulses in the tuning range of 2.5 – 10 μm and reaches up to 15 μm with a narrow-bandwidth extension. Due to the novel system design, ORPHEUS-MIR provides < 100 fs pulses directly at the output. Signal and Idler outputs are available simultaneously. The system architecture is well-suited for high-energy and high-power PHAROS and CARBIDE femtosecond pump lasers.

ORPHEUS-MIR serves as an excellent high-repetition-rate source for infrared spectroscopy such as broadband vibrational sum-frequency generation (SFG) spectroscopy. Combined with a narrow-bandwidth output of SHBC, it forms a compact laser system for SFG measurements, covering most of the MIR spectrum while also providing high spectral resolution. Furthermore, its high output stability is the key to fast and high-quality SFG imaging.

Applications

Broadband vibrational sum-frequency generation (SFG) spectroscopy
Time- and angle-resolved photoemission spectroscopy (TR-ARPES)
Two-dimensional infrared (2D IR) spectroscopy
High-harmonic generation (HHG) in solids
Other infrared spectroscopy and high-energy physics applications

Main output (2500 – 10000 nm)

Model	ORPHEUS-MIR
Mode of operation	Standard	Optimized for bandwidth ¹⁾
Tuning range	2 500 – 4 000 nm (Signal) 4 000 – 10 000 nm (Idler)
Maximum pump power	80 W
Pump pulse energy	400 µJ – 2 mJ
Pulse duration	< 100 fs
Conversion efficiency ²⁾	> 1.2% @ 3 000 nm > 1.0% @ 3 500 nm > 0.6% @ 5 000 nm
Conversion efficiency ²⁾	> 0.3% @ 9 000 nm	> 0.2% @ 9 000 nm
Spectral bandwidth ³⁾	> 300 cm^-1 @ 2 500 – 4 000 nm > 200 cm^-1 @ 4 000 – 8 000 nm
Spectral bandwidth ³⁾	> 200 cm^-1 @ 8 000 – 10 000 nm	> 350 cm^-1 @ 8 000 – 10 000 nm
Long-term power stability, 8 h ⁴⁾	< 2% @ 5 000 nm
Pulse-to-pulse energy stability, 1 min ⁴⁾	< 2% @ 5 000 nm

Optional mode of operation. Optimized for maximum spectral bandwidth at expense of conversion efficiency.
Specified as a percentage of pump power.
FWHM (full width at half maximum).
Expressed as NRMSD (normalized root mean squared deviation).

Auxiliary output 1 (2000 nm)

Model	ORPHEUS-MIR
Output wavelength ¹⁾	2000 ± 100 nm
Pulse duration	< 50 fs
Conversion efficiency ²⁾	> 8%
Spectral bandwidth	> 350 cm^-1

Not tunable, optimized for best overall performance. Not simultaneous to OPA output.
Specified as a percentage of pump power.

Auxiliary output 2 (1350 – 2000 nm)

Model	ORPHEUS-MIR
Tuning range ¹⁾	1 350 – 2 000 nm
Pulse duration	< 300 fs
Conversion efficiency ²⁾	Contact sales@lightcon.com
Spectral bandwidth	60 – 150 cm^-1

Simultaneous to OPA output. Available on request.
Specified as a percentage of pump power.

Wavelength extension (10000 – 15000 nm)

Model	ORPHEUS-MIR
Tuning range	10 000 – 15 000 nm
Pulse duration	< 300 fs
Conversion efficiency ¹⁾	> 0.2% @ 12 000 nm
Spectral bandwidth	100 – 150 cm^-1

Specified as a percentage of pump power.

Pump Laser Requirements

Model	ORPHEUS-MIR
Pump laser	PHAROS or CARBIDE
Center wavelength	1030 ± 10 nm
Maximum pump power	80 W
Repetition rate	Single-shot – 400 kHz
Pump pulse energy	400 µJ – 2 mJ
Pulse duration ¹⁾	180 – 300 fs