PM Variable Optical Attenuator (PMEVOA)
Descriptions
Polarity Maintenance VOA “PMVOA” is a specialized VOA product family in achieving laser attenuation while maintain-ing its polarity. It is widely used in many applications that polarity maintenance is critical, such as optical fiber sensing, optical instrumentation, etc. The PMVOA has been optimized over the years of production to achieve its unique perform-ance advantages unmatched in the industry.
Features
Excellent Extinction Ratio “ER”
Miniature design in a TO46 package
Hermetically sealed
Low ion loss (IL)
High attenuation range
Low power consumption
Fast response time
High optical power handling
Telcordia GR-1209 & GR-1221 compliant
Applications
Optical Fiber Sensing
Instrumentation
High-speed Optical Communication.
Optical
Coherence Tomography “OCT
Specifications
|
Parameter |
Unit |
Specification |
Remark |
|
Operating Wavelength Range |
nm |
980 or 1064 or 1260~1650 |
|
|
Attenuation Type |
|
Open or Close, continuous |
|
|
Attenuation Range |
dB |
≥30 |
|
|
Max Attenuation Range |
dB |
≥45 |
|
|
Insertion loss |
dB |
≤0.7 (Type 0.5) |
NO connector Loss |
|
Wavelength related loss |
dB |
≤0.3 |
Test in 0dB |
|
≤1.5 |
Test in 20dB |
||
|
ripple Loss |
dB |
≤0.05 |
0.4 nm bandwidth tested at 20dB |
|
Polarization related loss |
dB |
≤0.1 |
Test in 0dB |
|
≤0.3 |
Test in 20dB |
||
|
Temperature related loss |
dB |
≤0.2 |
Test comparison at 0dB |
|
≤1.0 |
Test comparison at 20dB |
||
|
Return Loss |
dB |
≥55 |
|
|
Extinction Ratio |
dB |
≥18 |
|
|
PMD |
ps |
≤0.1 |
|
|
Response time |
ms |
≤5 (3 典型) |
Optical Power 10-90% |
|
Optical Power |
mW |
300 |
|
|
Driving Voltage |
VDC |
5 V |
In 5V, typical is 40dB |
|
Power Consumption |
mW |
≤2 |
|
|
Operating Temperature |
ºC |
-20 to 70 |
|
|
Storage Temperature |
ºC |
-40 to 85 |
|
Ordering Information
|
PMEVOA – A — B — C — D — E — F — G |
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|
A |
Wavelength |
1550nm, 1064nm, 1030nm, 850nm, etc |
|
B |
Drive Voltage |
5V, 6.5v , etc |
|
C |
Attenuator Range |
20,30,45, etc |
|
D |
Tube Type |
BF=Bare fiber,0.9=0.9mm Tight Buffer/Tubing, etc |
|
E |
Fiber Type |
PM1550, PM980, PM850, Customer Request |
|
F |
Fiber length |
005=0.5m; 010=1.0m 100=10m etc |
|
G |
Connector Type |
N=None, FC/APC, SC/APC, LCAPC, MU/PC, ST/PC, D4, etc |
|
For example：PMEVOA -1030—6.5V-30dB-BF-PM980-010-N |
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