kHz 1.5µm Narrow Linewidth Single Frequency Fiber Laser

Fiber laser components, Industrial laser solutions

The CKSF-R narrow linewidth single frequency fiber laser offers linewidth below kHz level, features ultra-low phase noise and relative intensity noise (RIN), and the side-mode suppression ratio (SMSR) is over 55dB. The output power is at mW level, and higher output power can be tailored to your specific needs. The wavelength is available in range of 1530-1575nm.

The CKSF-D single frequency fiber laser is a kind of ultra-low noise fiber lasers which are designed with distributed feedback bragg grating type fiber laser technology, achieving stable linear polarization, single longitudinal mode and ultra-narrow linewidth single-frequency laser output. The output optical spectrum linewidth is at kHz level, featuring ultra-low phase noise and intensity noise, with strong capability of environment interference resistance. The output power can be over 100mW.

CKSF-D-ER-M: utilizing erbium-doped fiber, ultra-narrow linewidth <1kHz, low phase noise
CKSF-D-EY-M: utilizing erbium–ytterbium co-doped fiber, linewidth <15kHz, low relative intensity noise (RIN)

1.5µm Narrow Linewidth Single Frequency Fiber Laser, CKSF-R

Features

Ultra-narrow linewidth
Stable single-frequency & single polarization operation
Free of mode-hops, no bursting noise
Low phase noise and low relative intensity noise
Flexible design, multiple wavelengths are optional
Linear polarization output, high polarization extinction ratio (PER)
Small size, robust package

Applications

Fiber optic sensing
LiDAR
Hydrophone
Laser spectroscopy
Coherent communication
Other scientific research tasks

1.5µm Narrow Linewidth Single Frequency Fiber Laser, CKSF-D

Features

Ultra-narrow linewidth
Stable single-frequency & single polarization operation
Free of mode-hops, no bursting noise
Low phase noise and low relative intensity noise
Flexible design, multiple wavelengths are optional
Linear polarization output, high polarization extinction ratio (PER)
Small size, robust package

Applications

Fiber optic sensing
LiDAR
Hydrophone
Laser spectroscopy
Coherent communication
Gas absorption measurement
Other scientific research tasks

Specification

Parameter	Unit	Specification
Parameter	Unit	Typ.	Typ.
Part no.		CKLIS-D-ER-M	CKLIS-D-EY-M
Center wavelength	nm	1530-1570nm
Output power	mW	5-100
Laser emission		CW, Single frequency & Single longitudinal mode
Beam quality	M²	< 1.05
Linewidth	kHz	< 1	< 10
OSNR(50pm resolution)	dB	>50(typical>55dB)	>55(typical>60dB)
Relaxation oscillation peak frequency	kHz	～600	～800
Relative intensity noise(RIN) peak	dB/Hz	-100	-110
Relative intensity noise(RIN)	dB/Hz	23
Output power stability	%	< 1
Wavelength thermal tuning range	nm	>0.7	>0.8
Fast PZT modulation		Optional
PZT modulation frequency	kHz	DC-20kHz
Output isolation	dB	30
Operating voltage	V	12VDC
Output fiber type		PM1550-XP
Output fiber length	m	>0.5
Optical connector		FC/APC
Output fiber for monitor		Optional
Interface		RS485
Operating temperature	℃	5-60
Storage temperature	℃	-85
Dimension	mm	175（L)×130(W)×30(H)
Dimension	mm	145（L)×100(W)×25(H)

Techwin is known as an expert company in developing and manufacturing of fiber lasers, fiber amplifiers and fiber sources. We also strive to provide our customers with custom fiber laser solutions suited for your applications. All of our high-power fiber lasers and amplifiers are manufactured following a rigorous quality management system. We are more than happy to share our laser technology with worldwide customers, and committed to earn the ongoing trust of our customers with our industrial fiber lasers coupled with expert support and service in various industrial segments.