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Home > Products > Single Frequency Fib... > CoSF-D-ER > CoSF-D-ER-M Single F...
CoSF-D-ER-M Single Frequency Fiber Laser Module
Description:
Connet CoSF-D is a low-noise Single Frequency Fiber Laser based on Distributed Feedback Bragg Grating (DFB) technology. It has independent intellectual property rights and achieves a stable single-frequency laser output with single longitudinal mode, linear polarization, and narrow linewidth. CoSF-D has very low phase and frequency noise and low relative intensity noise (RIN). Connet uses unique packaging technology to ensure low-noise DFB single frequency fiber lasers with excellent wavelength stability.
Connet uses extra-cavity technology to significantly suppress the relative intensity noise (RIN) of the DFB single frequency fiber laser, ensuring that the resonant cavity of the single frequency fiber laser is not disturbed. Please refer to CoSF-D-RS series products.
CoSF-D narrow linewidth single frequency fiber laser module has a small size, a sturdy package, strong resistance to environmental interference, output power is up to100mW. CoSF-D-ER-M is based on erbium-doped fiber with ultra-narrow linewidth (<1kHz) and low phase noise and frequency noise. The standard wavelength is 1550.12nm, and the optional wavelength range is 1530-1570nm, such as the standard wavelength under the ITU framework. Other wavelengths can be customized according to requirements.
Features:
● Ultra-narrow linewidth <1kHz
● Very low phase noise and frequency noise
● Low relative intensity noise (RIN)
● Stable single frequency, single polarization output
● No mode-hopping
● Small sized package 145x100x25mm
● High reliability
Applications:
● Distributed optical fiber sensing
● Coherent LiDAR
● Fiber optic hydrophone
● Laser spectroscopy
● Coherent communication
● Gas absorption measurement
● Cold atomic physics
● Other scientific research
Specifications:
Parameter
Unit
Specification
Min
Typ.
Max
Part no.
CoSF-D-ER-M
Center wavelength
nm
1530-1572nm fixed, other specify
Output power
mW
5
-
100
Laser output
CW, Single frequency & Single longitudinal mode
Beam quality
M2
-
1.05
1.1
Linewidth
kHz
-
-
1
RIN peak frequency
kHz
200
-
500
RIN peak
dBc/Hz
-
-105
-100
RIN @10MHz
dBc/Hz
-
-130
-125
Phase noise (1m OPD)
urad/√Hz
<100@100Hz
urad/√Hz
<10@10kHz
urad/√Hz
<1@100kHz
SMSR (50pm resolution)
dB
60
>70
-
Output polarization
Linear
Polarization extinction ratio (PER)
dB
20
23
-
Output power stability
%
-
0.5
1
Output isolation
dB
50
-
-
Wavelength thermal tuning
nm
-
0.3
-
PZT wavelength modulation
Optional
Modulation frequency (linear)
kHz
DC
10
20
Modulation wavelength range1
GHz
-
10
15
Operating temperature
℃
-20
-
+50
Storage temperature
℃
-40
-
+85
Power supply
VDC
12
Communication interface
RS485
Output fiber type
Panda PM1550
Output fiber length
m
> 0.5
Optical connector
FC/APC
Dimension
mm
145x100x25
Weight
kg
<0.5
Ordering Information:
CoSF-D-ER-M-<15xx>-<PW>-PMF/SMF-PZT-FA
PW: Output power, 5- 20mW is fixed, 50mW and 100mW output power are adjustable
Options: 1. SMF output 2. Monitoring output 3. PZT fast modulation
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