MEMS Variable Optical Attenuator
UVOA Series
Product Description
Oplink’s MEMS (Micro-Electro-Mechanical Systems) Variable Optical Attenuator
(μVOA) uses an electrostatic tilting mirror to change light coupling between input
and output fibers. Key features include low IL, fast response and compact size.
μVOA is available in Dark or Bright type. Applications include power equalization
before optical amplification in multi-channel WDM networks, power control, re-
ceiver protection or gain variation in EDFA. The μVOA is designed to withstand
diverse environmental conditions and fully comply withTelcordia GR-1221.
Oplink can provide customized designs to meet specialized feature applications.
Also,Oplink offers full function modules or subsystems by integrating other com-
ponents.
Performance Specificationns
Features
Parameter
Specification
1525 ~ 1570
1570 ~1610
Unit
λ
C
Low IL, Low PDL, Low WDL
Fast Response
Operating Wavelength Range
nm
λL
Insertion Loss
(@λC or λL , TOp , all SOP , exclude connectors)
Compact Package
≤ 0.8
dB
Bright and Dark Type
Insensitive to Vibration and Shock
Attenuation Range
≥ 30
≥ 40
dB
dB
Blocking State Attenuation (Dark type, IL at power off)
Attenuation Resolution
continuous
≤ 0.15
@ 0 dB
Polarization Dependence Loss
@ 20 dB
≤ 0.4
Applications
dB
@ 0 dB
≤ 0.2
Wavelength Dependence Loss
Optical Power Control or Equalization
Gain Variation in EDFA
On/Off Switch
C
(within λ or λL)
@ 20 dB
Ripple (within 0.4nm window within 20dB)
Polarization Mode Dispersion (PMD)
Return Loss
≤ 0.6
0.05dB typical
≤ 0.1
ps
dB
≥ 45
Response Speed (90% optical rise/fall)
Driving Voltage
≤ 20
ms
VDC
mW
°C
7 V, 16 V, or 20V
300
Maximum Optical Power
Operating Temperature Range (TOP
Storage Temperature Range
)
- 5 to +70
-40 to +85
°C
S0175 - R02. 20110331