浏览历史

Koheras HARMONIK high-power frequency-doubled laser system

The Koheras HARMONIK fiber laser system provides up to 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.

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, it is possible to get power up to 7 W at 780 nm and 1560 nm simultaneously. 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 optics 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 and 1560 nm simultaneously

• 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

商品属性
[波长]	775-780 nm
[功率]	Up to 7 W