Koheras HARMONIK High-Power Frequency-Doubled Laser System
The Koheras HARMONIK fiber laser system provides over 7 W output at 780 nm with a unique combination of low noise, narrow linewidth, and excellent beam quality. It is alignment-free and maintenance-free.
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.
The system gives you simultaneous power operation at the fundamental and second harmonic frequency. 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.
For both systems, the standard output power is greater than 7 W. It is possible to get above 7 W at 780 nm and 1560 nm or 766 nm and 1532 nm, simultaneously. If you need a higher output power, please contact us about custom power levels.Having a fiber-deliverable high-power source allows for multipurpose functionality.
Koheras HARMONIK High-Power Frequency-Doubled Laser System
Features
- Greater than 7 W at 780 nm and 1560 nm
- Greater than 4 W at 766 nm and 1532 nm
- Sub-kHz linewidth
- Ultra-low frequency and intensity noise
- Wide wavelength tunability
- Excellent beam quality, M2 < 1.1
- Wide wavelength tunability
- Temperature stabilized
- Optional PM fiber delivery
- Simple Plug and Play operation
- Robust and maintenance-free
- Ideal for quantum optics
- Fast wavelength modulation
- Thermal tuning
- Free space or fiber output in a robust packaging
specifications
Optical |
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Model |
C7 |
E7 |
Center Wavelengths 1) | 766-780 nm / 1532-1560 nm | 766-780 nm / 1532-1560 nm |
Laser Emission | CW – inherently single frequency | CW – inherently single frequency |
Beam Quality | M2 < 1.1 | M2 < 1.1 |
SHG Output Power 2) | > 4 W or > 7 W | > 4 W or > 7 W |
Fundamental Output Power 2) | > 4 W or > 7 W | > 4 W or > 7 W |
Simultaneous Operation Total Power 2) | > 8 W or > 14 W | > 8 W or > 14 W |
Linewidth | < 30 kHz / < 15 kHz | < 0.4 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 |
Mechanical / Electrical |
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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 |
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 minute warm-up.
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