Discover the Koheras ADJUSTIK series from NKT Photonics, offering industry-leading low phase noise and extremely narrow linewidth. These rack-mountable benchtop lasers are ideal for low-noise applications in metrology, coherent sensing, and quantum technologies.
The Koheras ADJUSTIK is a rack-mountable benchtop single-frequency DFB fiber laser, built on our renowned BASIK laser modules. It delivers low phase noise and a Hz-range linewidth – performance typically reserved for high-end scientific systems – all with stable, mode-hop-free operation.
Our standard systems are available at 1550.12 nm, 1064.00 nm, and 1762.17 nm. Ask us about other wavelengths in the 1535–1580 nm and 1030–1120 nm ranges.
Key Features
Industry-leading low phase noise
Extremely narrow linewidth
Stable single-frequency operation
Wide wavelength tuning
Easy-to-use benchtop system
Robust and maintenance-free
Models and options
T20 HP thulium fiber laser
Standard wavelength1762.17 nm
Output power 0.5 W
X15 ultra low noise erbium fiber laser
Wavelength range1535 – 1580 nm
Output power 30 mW
X15 HP ultra low noise erbium fiber laser
Wavelength range1545 – 1565 nm
Output power 2 W
E15 erbium fiber laser
Wavelength range1535 – 1580 nm
Output power 40 mW
E15 HP erbium fiber laser
Wavelength range1545 – 1565 nm
Output power 2 W
Y10 ytterbium fiber laser
Wavelength range 1030 – 1120 nm
Output power > 10 mW
Y10 HP ytterbium fiber laser
Wavelength range1060 – 1075 nm
Output power 0.2 W
Want to know more?
Get in touch with one of our Koheras laser experts and learn more
This range of benchtop laser systems is typically offered as rapidly deployable sources for research laboratories that wish to use it as a tool for scientific work and not spend time on setting up a laser system.
The benchtop models are based on our Koheras BASIK module seed technology and are upgradable in terms of output power. The systems are supplied with our user-friendly CONTROL software for the control and read-out of laser parameters on a PC such as wavelength, output power, and RIN suppression.
The ADJUSTIK lasers are ideal for experimental work for all kinds of low-noise applications e.g. for metrology and coherent sensing where laser noise is critical. The ADJUSTIK HP T20 was designed specifically with the 6S to 5D transition in barium in mind, for quantum applications such as qubit manipulation, quantum sensing, sympathetic cooling, etc.
Want more details?
If you want more details about phase noise, spectral linewidth, frequency stability, or how to wavelength tune your Koheras laser, we have some application notes for you.
The Koheras ADJUSTIK delivers industry-leading low phase noise and extremely narrow linewidth, ideal for metrology and quantum technologies.
Specifications
Choose model:
Y10
Y10 HP
E15
E15 HP
X15
X15 HP
T20 HP
Laser emission, inherently single frequency
CW
CW
CW
CW
CW
CW
CW
Operating wavelength [nm]
1030-1120
1060-1075
1535-1580
1545-1565
1535-1580
1545-1565
1762.17
Output power [mW]
> 10
200
40
200 / 2000
30
200 / 2000
500
Output power tunability [%]
–
25-100
30-100
25 / 10-100
30-100
25 / 10-100
10-100
Linewidth 1) [kHz]
< 20
< 20
< 0.1
< 0.1
< 0.1
< 0.1
< 10
Max phase noise @1 Hz [dB((Rad/√Hz)/m)]
–
–
–
–
-105
-105
–
Max phase noise @10 Hz [dB((Rad/√Hz)/m)]
–
–
-90
-90
-125
-125
-80
Max phase noise @100 Hz [dB((Rad/√Hz)/m)]
–
–
-110
-110
-130
-130
-100
Max phase noise @1 kHz [dB((Rad/√Hz)/m)]
–
–
–
–
-128
-128
–
Max phase noise @20 kHz [dB((Rad/√Hz)/m)]
–
–
-130
-130
–
–
-120
Max phase noise @1 Hz [(µrad/√Hz)/m]
–
–
–
–
5.6
5.6
–
Max phase noise @10 Hz [(µrad/√Hz)/m]
–
–
32
32
0.6
0.6
100
Max phase noise @100 Hz [(µrad/√Hz)/m]
–
–
3.2
3.2
0.3
0.3
10
Max phase noise @1 kHz [(µrad/√Hz)/m]
–
–
–
–
0.4
0.4
–
Max phase noise @20 kHz [(µrad/√Hz)/m]
–
–
0.3
0.3
–
–
1
RIN peak [MHz]
≈ 1.5
≈ 1.5
≈ 0.7
≈ 0.7
≈ 0.7
≈ 0.7
≈ 0.7
RIN level @ peak [dBc/Hz]
<-105
<-105
<-100
<-100
<-100
<-100
<-80
RIN level @ 10 MHz [dBc/Hz]
<-140
<-140
<-135
<-135
<-135
<-135
<-120
Optical S/N (50 pm res.) [dB]
> 65 (typ > 70)
> 60
> 50 (typ. > 55)
> 45
> 50 (typ. > 55)
> 45
> 45
Min thermal tuning range 2) [pm]
± 240
± 240
± 350
± 350
± 350
± 350
± 350
Total thermal tuning range [pm]
680
680
1000
1000
1000
1000
≈900 (TBC)
Fast wavelength modulation range 3) [GHz]
10
10
8
8
0.5
0.5
>6 @ 10Hz modulation frequency
Fast wavelength modulation 3) [kHz]
< 20
< 20
< 20
< 20
< 20
< 20
< 20
PM output – PER [dB]
> 23
> 17
> 23
> 20
> 23
> 20
> 17
Beam quality
M2 < 1.05
M2 < 1.05
M2 < 1.05
M2 < 1.05
M2 < 1.05
M2 < 1.05
M2 < 1.1
1) Lorentzian. 2) Relative to the center wavelength at room temperature. If the laser case temperature is outside the interval of approx. 10-50°C, the range of detuning from the center wavelength may be reduced. 3) Modulation depth and frequency are typically slew-rate limited, depending on the power.
