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PM Filter WDM

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1X2 Polarization Maintaining CWDM

The Polarization Maintaining Filter CWDM is characterized with low IL, high return loss, high extinction ratio and excellent environmental stability and reliability. They are ideal for polarization maintaining fiber amplifiers, CWDM network, and high-speed communication system and instrumentation applications.

Features

  • Low insertion loss
  • High Extinction Ratio
  • High channel isolation
  • High stability and reliability

Applications

  • Channels add / drop
  • CWDM network
  • Fiber optical amplifier
  • CATV Fiber Optic System

Performance Specifications

Parameter
Unit
CWDM
Channel Wavelength
nm
1270, 1290…,1610 etc.
Minimum Channel Spacing
GHz
20nm
Channel Passband (@-0.5dB bandwidth)
nm
> 13
Max. Insertion Loss@23℃
Pass Band
dB
0.8
Reflection Band
dB
0.5
Min. Isolation@23℃
Pass Band
dB
30
Reflection Band
dB
13
Extinction Ratio (@ 23℃)
dB
> 20
Directivity
dB
> 50
Return Loss
dB
> 45
Power Handling
W
0.3, 0.7, 1, 5
Fiber Type
-
PM1300-XP/PM1550-XP Panda Fiber
Operating Temperature
°C
0 ~ +70
Storage Temperature
°C
-40 ~ +85
Package Dimensions
mm
Ø5.5 x L35
  1. Above specifications are for device without connector, and the PM WDM device is both axis working. All parameters are tested at room temperature.
  2. For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower and ER will be 2dB lower. Power transmits through the connector less than 2W. The default connector key is aligned to slow axis.
  3. For >10W high power applications, we will use heat sink package, contact DK Photonics for details.
  4. If there is pulse application, please be sure to inform us of pulse energy and peak power.
  5. 1XN PM CWDM module is also available, please contact DKP.

Package Dimension

1X2 Polarization Maintaining CWDM

Order information

P/N: PMCWDM-①-②-③-④-⑤-⑥

When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
Channel Spacing
Wavelength/ ITU Channel
Power Handling
Pigtails Diameter
Fiber Length
Connector
C: CWDM
CWDM:
1270: 1270nm
1290: 1290nm
  …
1590: 1590nm
1610: 1610nm
S:<0.3W
L:<0.7W
1:1W
2:2W
5:5W
25:250μm bare fiber
90:900μm Loose Tube
XX: Others
05:0.5m
10:1.0m
15:1.5m
XX: Others
00: None
FP: FC/PC
FA: FC/APC
SP: SC/PC
LP: LC/PC
LA: LC/APC
XX: Others
Part Number Example:PMCWDM-1550-S-90-10-FA
Description:1550nm Polarization Maintaining CWDM, reflection wavelength 1470~1610nm, <0.3W power handling, with 0.9mm OD loose tube, 1.0m fiber length, and FC/APC connectors at all ports.

Ordering Information for Custom Parts:

If you need to customize other specifications, please provide detailed description for your requirement.

DK