1550nm Long Pulse Single Frequency PM Fiber Amplifier

长脉冲单频保偏放大器The 1550nm long pulse single frequency polarization maintaining fiber amplifier of Connet is a modular fiber amplifier specially designed for long pulse (100ns-2us) applications. Based on the eye-safe operating wavelength, this fiber amplifier can achieve the high pulse energy output up to 800uJ.

This 1550nm long pulse single frequency PM fiber amplifier is suitable for amplifying the single frequency narrow-linewidth light source. The linewidth can be narrowed to kHz level. Through the multi-stage optical amplification in the optimized design, this type of amplifier can suppress the nonlinear effects, such as the stimulated Brillouin scattering (SBS), realize the high pulse energy output, maintain the spectral characteristics of the signal light, meanwhile obtain the near diffraction-limited beam quality and keep the high polarization extinction ratio (PER) at the same time, which is the ideal amplifier for the coherent Doppler wind-measurement LIDAR system.

Features

• Eye-safe wavelength: 1550nm
• Single pulse energy: 800uJ
• Adjustable repetition rate: 5-20kHz
• Pulse width: 100-2000ns
• Near diffraction-limited beam quality: M2<1.5

Applications

• Doppler wind-measurement LIDAR
• Environment monitoring
• Pollution monitoring
• Other scientific research

Main Test Data

Parameter

Test Result

Input Power of CW Seed Laser

5mW

Output Power of CW Local Oscillator Laser

4.5mW

Output Power of CW Amplifier

80mW

Input Average Power of Pulsed Amplifier

30uW

Output Average Power of Pulsed Amplifier1@25℃ (@Full Pulse Width, 1us/5kHz)

1.5W

Output Average Power of Pulsed Amplifier1@-40℃ (@Full Pulse Width, 1us/5kHz)

1.53W

Output Average Power of Pulsed Amplifier1@+60℃ (@Full Pulse Width, 1us/5kHz)

1.31W

Polarization Extinction Ratio (PER)

>18dB

Output Average Power Stability of CW Amplifier

<3%

Output Average Power Stability of Pulsed Amplifier

<5%

Input/output Fiber Type

PM1550-XP

0.9mm PVC jacket

Pulse Output Fiber Type

PLMA-GDF-25/300

3.0mm PVC jacket

Input/output Fiber Connector

FC/APC

Input/output Fiber Length

0.5m

Pulse Output Fiber Length

0.3m

Input Isolation

>30dB

Output Isolation

>20dB

Input Pulse Waveform & Repetition Rate of Pulsed Amplifier @Full Pulse Width 1us/5kHz

See Fig. 1, Fig. 2

Output Pulse Waveform of Pulsed Amplifier@Full Pulse Width 1us/5kHz

See Fig. 3

Ouput Spectrum of Pulsed Amplifier@Full Pulse Width 1us/5kHz, Average Power 1.5W

See Fig. 4

Correspondence between the Pulsed Amplifier Output Power and the Power Consumption @25℃

See Form 1

Notes: The output power is measured with the fiber connector.

Product Information

Product

1550nm Long Pulse Single Frequency PM Fiber Amplifier

P/N

CoLIA-1550-M-SF-LP

S/N

201806134

Main Test Equipment

Seed Laser (Connet SF PM Fiber Laser)

Power Meter(FieldMaxII-TO-PM30I)

OSA (Optical Spectrum Analyzer)

(Anritsu MS9710)

Oscilloscope (KEYSIGHT DSOS104A 1G)

1G Detector

AOM (Acousto-optic Modulator)

FWG (Function Waveform Generator)

(RIGOL DG5101)

 Test Environment and Power Supply

Parameter

Specification

Power Supply

18~36V

Control Interface

RS485

Storage Temperature

-400C ~ +750C

Test Temperature

-400C ~ +600C

Humidity

<90%

Schematic Diagram of Test

 微信图片_20180827091851

Measured Pulse and Spectrum

   图片1Fig. 1 Input Pulse Waveform of Pulsed Amplifier@Full Pulse Width 1us/5kHz

图片2

Fig. 2 Input Pulse Repetition Rate of Pulsed Amplifier@Full Pulse Width 1us/5kHz

图片3

Fig. 3 Output Pulse Waveform of Pulsed Amplifier@Full Pulse Width 1us/5kHz

 图片4

Fig. 4 Ouput Spectrum of Pulsed Amplifier@Full Pulse Width 1us/5kHz, Average Power 1.5W

Continuous Amplification Output Average Power (mW)

Current (A)

Power Consumption  (W)

Pulsed Amplification Output Average Power (W)

Current (A)

Power Consumption (W)

10

0.13

3.12

0.1

0.50

12

20

0.15

3.6

0.2

0.57

13.68

30

0.17

4.08

0.3

0.64

15.36

40

0.17

4.08

0.4

0.72

17.28

50

0.18

4.32

0.5

0.80

19.2

60

0.20

4.8

0.6

0.88

21.12

70

0.21

5.04

0.7

0.96

23.04

80

0.22

5.28

0.8

1.05

25.2

 Form 1 Correspondence between the Pulsed Amplifier Output Power and the Power Consumption  @25℃, Input Voltage 24VDC

 

 


Post time: Aug-27-2018