Polarization Extinction Ratio Meter
PEM-340
The PEM-340 polarization extinction ratio (PER) meter enables rapid and accurate polarization axis alignment of optical components to a PMF (Polarization Maintaining Fiber). The PEM-340 incorporates a powerful GPIB interface enabling full system integration and production line automation. In addition, to facilitate automatic alignment of diode lasers to optical fibers, an analogpower monitor with 1kHz response time is available. With this addition, both translational and rotational fiber alignment can be controlled automatically.The PEM-340 has two separate versions: the Normal Power version with 50 dB of PER dynamic range is ideal for PM fiber connectorization and alignment of polarization axis of optical devices. The High Power version has a high input power range of up to +20dBm and is best suited for PMF pigtailed laser diodes evaluation.
Features
Full band 1260-1630nmSimultaneous display of extinction ratio, optical power, and polarization angle50 dB dynamic range for PER measurementWide dynamic input power range (-40 to +10 dBm/Normal power), (-25 to +20dBm/High power)Direct PD analog outputReal-time (up to 10Hz) measurementInterchangeable connectors: FC, SC or LCfusion splicing
Applications
Alignment of polarization axis of optical devicesConnectorized PMF patch cord evaluationPMF pigtailed laser diodes evaluationPM fiber
Principle of Operation
Measurement Data
*1: Temperature: 20-30℃, Measurement Speed: 2.5Hz
*2: Calibrated wavelength : 1310nm/1550nm
*3: Measurement Speed:2.5Hz
*4: SPC: Super Physical Contact, APC: Angled PC
Category
Unit
Normal power
High power
Wavelength Range
nm
1260-1630
PER Dynamic Range
dB
50
40
PER Range
dB
0 to 50
-5~+10dBm
–
–
0 to 40
-15~+10dBm
0 to 40
-5~+20dBm
0 to 30
-25~+10dBm
0 to 30
-15~+20dBm
0 to 20
-35~+10dBm
0 to 20
-25~+20dBm
PER Resolution
dB
0.01
PER Accuracy *1
PER <30dB
dB
<±0.3
PER ≧30dB
<±1.0
<±1.0
Input Power Range
dBm
-40 〜 +10
-25 〜 +20
Power Resolution
dB
0.01
Power Accuracy *2
dB
<±0.3
Polarization Angle Resolution *3
deg
0.12
Polarization Angle Accuracy
deg
<±0.45
Measurement Speed
sec
0.1/0.2/0.4
Interface
–
GP-IB, RS-232C
Operating Temperature
℃
0-40
Size (w) x (D) x (H)
mm
210x300x80
Weight
kg
3
Supply Voltage
V
AC100-240
Maximum Power Consumption
W
35
Ordering Code
商品属性 [波长] 1260-1630nm [PMD] 50/40dB