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Position: Home > Products > Single Frequency Fiber Laser > CoSF-D DFB Single Frequency Fiber Laser > CoSF-D-ER > CoSF-D-ER-M Single Frequency Fiber Laser Module

CoSF-D-ER-M Single Frequency Fiber Laser Module

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.


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

300

400

500

RIN peak

dBc/Hz

-

-105

-

RIN @10MHz

dBc/Hz

-

-140

-

Phase noise (1m OPD)

urad/√Hz

70@100Hz

urad/√Hz

7@10kHz

urad/√Hz

0.7@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

0.6

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-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

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