Electrical Variable Optical Attenuator0 pages

Product Description
Features
Applications
Notes:
1) Excluding connectors. 2) Relative to 23°C. 3) At 3 dB attenuation change.
Parameter Min Typical Max Unit
Operating wavelength range 1525 ~ 1570 or 1570 ~1610 nm
Insertion Loss [1] 1.0 dB
Attenuation range 0 30 dB
Temperature dependence of attenuation [2] 0.15 dB
Wavelength dependence
of attenuation
0~15dB Attenuation
15~30dB attenuation
0.2
0.3 dB
Polarization dependence
of attenuation
0 to15 dB
> 15 dB
0.15
0.2 dB
PMD 0.1 ps
Return Loss [1] 40 dB
Resolution 0.15 dB
Repeatability 0.2 dB
Back lash 0.3 dB
Response speed [3] 0.2 sec
Optical power 100 mW
Operating Temperature -5 to +70 °C
Storage Temperature -40 to +85 °C
Fiber type SMF-28
POT resistance 9 10 11 KÙ
Package Dimensions P2: 50.0 (L) ×25.0 (W) × 12.0 (H
P3: 45.0 (L) ×18.0 (W) × 12.0 (H) mm
Performance Specificationns
S0012 - R09. 20100602
Electronically Variable Optical
Attenuators
EVOA Series
Oplink’s electronically variable optical attenuator (EVOA) is a high performance
opto-mechanical device. EVOA operates by moving an obstructing element into
the optical beam and the position of the obstructing element can be adjusted by
an integrated, electronically controlled step motor, resulting in fine tuning of attenuation.
Oplink’s EVOA features a large dynamic attenuation range of >30dB and an excellent
optical performance over C- or L-band. Its latching operation retains recent
attenuation setting upon removal of drive voltage. Applications include pre-emphasis
attenuation, detector saturation control, in-line power equalization and
amplifier power control applications. Also, it can be used to extend the dynamic
range of optical measurement instruments.
Oplink’s EVOA is designed to withstand the diverse environmental conditions and
compliance to the Telcordia standard GR-1221.
Oplink can provide customized designs to meet specialized feature applications.
Also, Oplink offers modular assemblies that integrate other components to form
a full function module or subsystem.
„c Operates over C or L Band
„c Low Insertion Loss and PDL
„c Latching Capability
„c PCB Mountable
„c Pre-emphasis Attenuation
„c Detector Input Power Control
„c In-line Power Equalization
„c Gain Control in Optical Amplifiers
„c On/Off Switch
„c Instrumentation, Testing and
Measurement