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Home > Products > Single Frequency Fib... > CoSF-D-ER > CoSF-D-RS-ER-M Low R...
CoSF-D-RS-ER-M Low RIN 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. Thanks to RIN suppression technology, CoSF-D-RS-ER-M's relaxation oscillation peak intensity noise is reduced by more than 30dB.
CoSF-D-RS-ER-M is based on erbium-doped fiber with ultra-narrow linewidth (<1kHz) and very 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
● Very 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-RS-ER-M |
||
|
Center wavelength |
nm |
1530-1572nm fixed, other specify |
||
|
Output power |
mW |
10 |
50 |
100 |
|
Laser output |
|
CW, Single frequency & Single longitudinal mode |
||
|
Beam quality |
M2 |
- |
1.05 |
1.1 |
|
Linewidth |
kHz |
- |
- |
1 |
|
RIN peak frequency |
kHz |
200 |
300 |
400 |
|
RIN peak |
dBc/Hz |
-135 |
-130 |
-120 |
|
RIN @10MHz |
dBc/Hz |
-150 |
-145 |
- |
|
Phase noise (1m OPD) |
urad/√Hz |
70@100Hz |
||
|
urad/√Hz |
7@10kHz |
|||
|
urad/√Hz |
0.7@100kHz |
|||
|
SMSR (50pm resolution) |
dB |
50 |
55 |
- |
|
Output polarization |
|
Linear |
||
|
Polarization extinction ratio (PER) |
dB |
23 |
25 |
- |
|
Output power stability |
% |
- |
- |
±1 |
|
Output isolation |
dB |
50 |
- |
- |
|
Wavelength thermal tuning |
nm |
- |
0.8 |
1.0 |
|
PZT wavelength modulation |
|
Optional |
||
|
Modulation frequency (linear) |
kHz |
DC |
10 |
20 |
|
Modulation wavelength range |
GHz |
- |
>8 |
>10 |
|
Operating temperature |
℃ |
0 |
- |
60 |
|
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-RS-ER-M-<15xx>-<PW>-PMF/SMF-PZT-FA
PW: Output power, 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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