Koheras ADJUSTIK – single-frequency lasers

The Koheras ADJUSTIK is a rack-mountable benchtop single-frequency DFB fiber laser. We have based the ADJUSTIK on our renowned BASIK laser modules. Get a low phase noise and a Hz-range linewidth typically only found in costly scientific systems.

Our standard systems are available at 1550.12 nm and 1064.00 nm. Or you can get any other wavelength in the 1535–1580 nm and 1030–1120 nm ranges.

Models and options

X15/HP X15

Standard wavelength 1550.12 nm

Options

X15 output power: 22.5 mW
X15 HP output power: 0.2 W

E15/HP E15

Standard wavelength 1550.12 nm

Options

E15 output power: 40 mW
E15 HP output power: 2 W

Y10/HP Y10

Standard wavelength 1064.00 nm

Options

Y10 output power: > 10 mW
Y10 HP output power: 0.2 W

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Selected application areas

LIDAR systems

Photon Doppler Velocimetry, PDV

Distributed acoustic sensing – DAS

Cases from users of Koheras

Cases

Danish photonic quantum computer

Over the next four years, a new innovation consortium will create a photonic quantum computer. The consortium will develo …

Cases

Quantum noise squeezing with Koheras lasers

The Nonlinear Quantum Optics group at the University of Hamburg has been working with Koheras BOOSTIK lasers to make sque …

Cases

Coherent free-space transmission through the atmosphere

The University of Western Australia (UWA) has developed an active stabilization system that can perform coherent free-spa …

Ideal for low-noise applications

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.

Specifications

Choose model:

X15

E15

Y10

Laser emission

CW – inherently single frequency

CW – inherently single frequency

CW – inherently single frequency

Output power

22.5 mW

40 mW

> 10 mW

Output power HP

2.0 / 0.2 W

2.0 / 0.2 W

0.2 W

Operating wavelength

1535-1580 nm

1535-1580 nm

1030-1120 nm

Operating wavelength HP

1545-1565 nm

1545-1565 nm

1060-1075 nm

Output power tunability

1-100%

30-100%

–

Output power tunability HP

10-100%

10-100%

10-100%

Linewidth ¹⁾

< 0.1 kHz

< 0.1 kHz

< 20 kHz

Max phase noise @1 Hz (typical)

-105 dB((Rad/√Hz)/m)

–

–

Max phase noise @10 Hz

-125 dB((Rad/√Hz)/m)

-90 dB((Rad/√Hz)/m)

–

Max phase noise @100 Hz

-130 dB((Rad/√Hz)/m)

-110 dB((Rad/√Hz)/m)

–

Max phase noise @1 kHz

-128 dB((Rad/√Hz)/m)

–

–

Max phase noise @20 kHz

–

-130 dB((Rad/√Hz)/m)

–

Max phase noise @1 Hz (typical)

3.1 (µrad/√Hz)/m

–

–

Max phase noise @10 Hz

0.6 (µrad/√Hz)/m

32 (µrad/√Hz)/m

–

Max phase noise @100 Hz

0.3 (µrad/√Hz)/m

3.2 (µrad/√Hz)/m

–

Max phase noise @1 kHz

0.4 (µrad/√Hz)/m

–

–

Max phase noise @20 kHz

–

0.3 (µrad/√Hz)/m

–

RIN peak

≈ 0.7 MHz

≈ 0.7 MHz

≈ 1.5 MHz

RIN level @ peak

<-100 dBc/Hz

<-100 dBc/Hz

<-105 dBc/Hz

RIN level @ 10 MHz

<-135 dBc/Hz

<-135 dBc/Hz

<-140 dBc/Hz

Optical S/N (50 pm res.)

> 50 dB (typ. > 55 dB)

> 50 dB (typ. > 55 dB)

> 65 dB (typ > 70 dB)

Optical S/N HP (50 pm res.)

> 45 dB

> 45 dB

> 60 dB

Min thermal tuning range ²⁾

± 350 pm

± 350 pm

± 240 pm

Total thermal tuning range

1000 pm

1000 pm

680 pm

Fast wavelength modulation range ³⁾

0.5 GHz

8 GHz

10 GHz

Fast wavelength modulation ³⁾

< 20 kHz

< 20 kHz

< 20 kHz

PM output – PER

> 23 dB

> 23 dB

> 23 dB

PM output HP – PER

> 20 dB

> 20 dB

> 17 dB

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.

Chart by Visualizer

X15

E15

Y10

Operating temperature range ¹⁾

+15 to +55°C

+15 to +55°C

+15 to +55°C

Storage temperature

-20 to +60°C

-20 to +60°C

-20 to +60°C

Humidity non-condensing

0 – 70 %RH

0 – 70 %RH

0 – 70 %RH

Monitor output

FC/APC bulkhead

FC/APC bulkhead

FC/APC bulkhead

Dimensions (WxHxL)

483 x 48.5 x 386 mm (19” 1U)

483 x 48.5 x 386 mm (19” 1U)

483 x 48.5 x 386 mm (19” 1U)

Weight

< 7 kg

< 7 kg

< 7 kg

1) Module temperature.

X15

E15

Y10

Power supply requirements [VAC]

100-240, 50-60 Hz

100-240, 50-60 Hz

100-240, 50-60 Hz

Digital interface

USB 2.0, Ethernet 10/100

USB 2.0, Ethernet 10/100

USB 2.0, Ethernet 10/100

Amplitude and frequency modulation

DB9 (male), differential 2×5 V

DB9 (male), differential 2×5 V

DB9 (male), differential 2×5 V

Fiber output type

FC/APC

FC/APC

FC/APC

Fiber pigtail length

App. 1 m

App. 1 m

App. 1 m

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High power frequency-doubled laser systems