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Position: Home > Products > Single Frequency Fiber Laser > CoSF-D DFB Single Frequency Fiber Laser > CoSF-D-ER > CoSF-D-ER-B-LP Narrow Linewidth Single Frequency Fiber Laser

CoSF-D-ER-B-LP Narrow Linewidth Single Frequency Fiber Laser

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-ER-B-LP works in the 1.5um band, and the output power of the benchtop low noise narrow linewidth single frequency fiber laser is up to 200mW. Higher output power products can be provided on request. The standard wavelength is 1550.12nm, and the optional wavelength range is 1535-1605nm, such as the standard wavelength under the ITU framework.


Specifications:

Parameter

Unit

Specification

Min

Typ.

Max

Part no.

 

CoSF-D-ER-B-LP

Center wavelength

nm

1530-1572nm fixed, other specify

Output power

mW

5

-

200

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

-

-145

-140

RIN @10MHz

dBc/Hz

-

-155

-150

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

15

-

40

Storage temperature

-20

-

60

Power supply

VAC

100-240V 50/60Hz

Communication interface

 

RS232

Output fiber type

 

Panda PM1550

Output fiber length

m

> 0.5

Optical connector

 

FC/APC

Dimension

mm

430x450x105

Weight

kg

<5


Ordering Information:

CoSF-D-ER-B-LP-<15xx>-<PW>-PMF/SMF-PZT-FA  

PW: Output power, 5- 20mW is fixed, 50mW, 100mW and 200mW 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

· Benchtop all-in-one package

· 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