The HARMONIK system is a high-power frequency-doubled laser system consisting of our popular low-noise Koheras BOOSTIK HP fiber laser platform in combination with our new frequency converter module, HARMONIK.
Choose from two HARMONIK systems, the C7 or the E7. The C7 has an exceptionally low relative intensity noise: A RIN level of -140 dBc/Hz at 10 MHz. The E7 has a narrow linewidth and very low phase noise: A line-width of <0.2 kHz and phase noise of -87 dB(rad/√Hz/m) at 10 Hz.
High standard output power and excellent beam quality
For both systems, the standard output power goes up to 7 W. If you need a higher output power, please contact us about custom power levels.
The excellent beam quality, M2 < 1.1, is suitable for cutting edge quantum physics projects such as Magneto-Optical Trap (MOT), quantum sensing, gravimetry, and laser cooling and trapping, to mention a few.
Having a fiber-deliverable high-power source at 780 nm allows for multipurpose functionality.
Free space or fiber output in a robust packaging
Per default, the HARMONIK systems come with free space output. If you need fiber coupling, we can propose an efficient coupling via our unique polarization-maintaining single-mode photonic crystal fiber that ensures high-power delivery.
Our aeroGUIDE fiber delivery patch cord is an excellent accessory for the HARMONIK.
The BOOSTIK system is delivered in a turn-key 19″ rack system and the HARMONIK is a tabletop module.
Features
- Up to 7 W at 780 nm
- Sub-kHz linewidth
- Ultra-low frequency and intensity noise
- Wide wavelength tunability
- Excellent beam quality, M2 < 1.1
- Temperature stabilized
- Optional PM fiber delivery
- Simple Plug and Play operation
- Robust and maintenance-free
Laser models
| Model | C7 | E7 |
| Supported wavelengths | 775-780 nm | 775-780 nm |
| Output power | Up to 7 W | Up to 7 W |
| PM fiber delivery | Optional | Optional |
| RIN | Ultra-low | Low |
| Linewidth | <30 kHz | <0.2 kHz |
| Fast modulation | Yes | Yes |
Optical
| Model | C7 | E7 |
| Supported wavelengths 1) | 775-780 nm | 775-780 nm |
| Laser emission | CW – inherently single frequency | CW – inherently single frequency |
| Beam quality | M2 < 1.1 | M2 <1.1 |
| Output power 2) | Up to 7 W | Up to 7 W |
| Linewidth | < 30 kHz | < 0.2 kHz |
| Max. phase noise | -66dB(rad/√Hz/m)@10Hz -86dB(rad/√Hz/m)@100Hz -106dB(rad/√Hz/m)@20kHz |
-87dB(rad/√Hz/m)@10Hz -107dB(rad/√Hz/m)@100Hz -127dB(rad/√Hz/m)@20kHz |
| RIN peak | Appr. 1.0 MHz | Appr. 0.7 MHz |
| RIN level 3) | < -117 dBc/Hz @ peak < -137 dBc/Hz @ 10 MHz |
< -97 dBc/Hz @ peak < -132 dBc/Hz @ 10 MHz |
| Long term stability (RMS, 1H@25°C) 4) | < ± 2% | < ± 2% |
| Optical S/N (50 pm res.) | > 50 dB | > 50 dB |
| Polarization / PER | Linear > 20 dB | Linear > 20 dB |
| Degree of polarization / DOP | ≥ 30 | ≥ 30 |
| Min. thermal wavelength tuning range | ± 175 pm | ± 175 pm |
| Total thermal wavelength tuning range | 500 pm | 500 pm |
| Fast wavelength modulation range | 16 GHz | 16 GHz |
| Fast wavelength modulation | Up to 20 kHz | Up to 20 kHz |
| Typical beam diameter @ 1/e2 | 2 mm | 2 mm |
1) Center wavelength is selectable within the specified range. Please ask for options outside the range.
2) Output power depends on the center wavelength.
3) Shot noise-limited > 5 MHz.
4) After a 10-20 minutes warm-up.
Mechanical / Electrical
HARMONIK module
| Power supply requirements | 100-240 VAC, 50-60 Hz |
| Digital interface | Ethernet 10/100 |
| Frequency modulation | DB8 (male), differential 2 x 5 V |
| Monitor output | Standard: Free-space Optional: Fiber FC/APC, 2.5 m |
| Dimensions (WxHxL) | 173 x 62.5 x 240 mm3 |
| Weight | 6 kg |
Technical drawings
| Dimensions (WxHxL) | 173 x 62.5 x 240 mm3 |
| Weight | 6 kg |
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| All NKT Photonics products are produced under our quality management system certified in accordance with the ISO 9001:2015 standard. |  |
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