Koheras ADJUSTIK Single-Frequency Lasers

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PRODUCT

Koheras ADJUSTIK Single-Frequency Lasers

The Koheras ADJUSTIK is a rack-mountable benchtop single-frequency DFB fiber laser. Based on our renowned BASIK modules, the ADJUSTIK is the pinnacle of industrial low noise lasers featuring ultra-low phase noise and Hz-range linewidth normally only found in costly scientific systems.

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 NKTP CONTROL software for the control and read-out of laser parameters on a PC such as a wavelength, output power, and RIN suppression.

IDEAL FOR LOW-NOISE APPLICATIONS

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.

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Koheras ADJUSTIK Single-Frequency Lasers

Features

Center wavelengths in the 1535–1580 nm and 1030–1120 nm ranges
High-power: Up to 2 W
Industry-leading low phase noise and extremely narrow linewidth
Stable single-frequency operation
Wide thermal wavelength tuning
Integrated fast wavelength modulation
Polarization-maintaining fiber output
Robust and maintenance-free

specifications

Optical
Model	X15	E15	C15	Y10
Laser Emission	CW – inherently single frequency	CW – inherently single frequency	CW – inherently single frequency	CW – inherently single frequency
Output Power [mW]	22.5	40	> 10	> 10
Beam Quality [M²]	< 1.05	< 1.05	< 1.05	< 1.05
Linewidth [kHz] ¹⁾	< 0.1	< 0.1	< 15	< 20
Max Phase Noise [dB((Rad/√Hz)/m)]	-105@1 Hz -125@10 Hz -130@100 Hz -128@1 kHz	-90@10 Hz -110@100 Hz -130@20 kHz	-69@10 Hz -89@100 Hz -109@20 kHz	–
Max Phase Noise [(µrad/√Hz)/m]	3.1 @1 Hz 0.6@10 Hz 0.3@100 Hz 0.4@1 kHz	32@10 Hz 3.2@100 Hz 0.3@20 kHz	355@10 Hz 36@100 Hz 3.5@20 kHz	–
RIN Peak [MHz]	Approx. 0.7	Approx. 0.7	Approx. 1.0	Approx. 1.5
RIN Level @ Peak / 10 MHz [dBc/Hz]	<-100 / <-135	<-100 / <-135	<-120 / <-140	<-105 / <-140
Optical S/N (50 pm res.) [dB]	> 50 (typ. > 55)	> 50 (typ. > 55)	> 65 (typ > 70)	> 65 (typ > 70)
Min Thermal Wavelength Tuning Range [pm] ²⁾	+/- 350	+/- 350	+/- 350	+/- 240
Total Thermal Tuning Range [pm]	1000	1000	1000	680
Fast Wavelength Modulation Range [GHz] ³⁾	0.5	8	8	10
Fast Wavelength Modulation [kHz] ³⁾	Up to 20	Up to 20	Up to 20	Up to 20
PM Output – PER [dB]	> 23	> 23	> 23	> 23
Mechanical/Electrical
Power Supply Requirements [VAC]	100-240, 50-60 Hz
Digital Interface	USB 2.0, Ethernet 10/100
Amplitude and Frequency Modulation	DB9 (male), differential 2×5 V
Fiber Output Type	FC/APC
Fiber Pigtail Length [m]	App. 1
Monitor Output	Yes (FC/APC bulkhead)
Dimensions (WxHxL) [mm]	483 x 48.5 x 386 (19” 1U)
Weight [kg]	< 7
Environmental
Operating Temperature Range [°C]	15 – 55 (internal case temp)
Storage Temperature [°C]	-20 – 60
Humidity non Condensing [%RH]	0 – 70

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.