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Position: Home > Products > Single Frequency Fiber Laser > CoSF-R Optimized Ring Cavity Single Frequency Fiber Laser > CoSF-R-ER > CoSF-R-ER-B-LP Ultra-narrow Linewidth Single Frequency Fiber Laser

CoSF-R-ER-B-LP Ultra-narrow Linewidth Single Frequency Fiber Laser

Connet CoSF-R optimized traveling wave cavity ultra-narrow linewidth single-frequency fiber laser is a low-noise ultra-narrow linewidth fiber laser independently developed by patented technology. CoSF-R single-frequency fiber laser uses a unique "optimized traveling wave cavity" The design eliminates the standing wave space hole burning phenomenon which is easy to occur in the linear cavity fiber laser. In conjunction with the ultra-narrow bandwidth fiber filter designed by Connet, the single longitudinal mode output is selected and the single frequency operation of the fiber laser is guaranteed.

The polarization control technology eliminates the polarization hole burning effect based on the all-fiber design, thereby achieving stable linear polarization, single longitudinal mode, and ultra-narrow linewidth single-frequency laser output.


CoSF-R ultra-narrow linewidth single-frequency fiber laser has excellent performance, the linewidth is less than 1kHz, and has ultra-low phase noise and frequency noise. The ultra-long laser cavity design makes the overall noise level of CoSF-R significantly lower than other commercial  short-cavity single frequency lasers.


CoSF-R-ER-B-LP works in the 1.5um band, and the output power of the benchtop ultra-narrow linewidht single frequency fiber laser is up to 100mW. 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-R-ER-B-LP

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

40

70

100

RIN peak

dBc/Hz

-

-145

-140

RIN @10MHz

dBc/Hz

-

-155

-150

Phase noise (1m OPD)

urad/√Hz

100@10Hz

urad/√Hz

0.6@10kHz

urad/√Hz

0.1@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

0.6

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

110-240V 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-R-ER-B-LP-<15xx>-<PW>-PMF/SMF-PZT-FA  

PW: Output power, 5mW 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

· Ultra-low phase noise and frequency noise

· Ultra-low relative intensity noise (RIN)

· Stable single frequency, single polarization output

· No mode-hopping

· Benchtop all-in-one package

· PZT option

Applications:

· Distributed optical fiber sensing

· Coherent LiDAR

· Fiber optic hydrophone

· Laser spectroscopy

· Coherent communication

· Gas absorption measurement

· Cold atomic physics

· Other scientific research

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