Variable Optical Attenuator (Low WDL)

Variable Optical Attenuator (Low WDL)
MEMS VOA is based on micro-electro-mechanical system technology. It allows a precise level of attenuation by rotating the MEMS mirror to change the coupling of light between the input and output fibers. There are 2 variants available with different default states: The bright type or dark type. The bright type has its lowest loss state at 0 V, while the dark type reaches it’s lowest insertion loss at a voltage between 4.5-5V. The VOA offers highly reliable, durable, long-life operation in a compact package.

Features

  • Proven MEMS durability and reliability
  • Compact Form Factor
  • Qualified to Telcordia GR- 1073-CORE and RoHS requirements
  • Direct Voltage Control

Applications

  • Distributed power equalization within OADMs, MUX/DMUXes, Band Equalizers, Channel Equalizers, OXC, Line Cards and Transponders.
  • Input power adjustment in EDFA

Optical Specifications

PARAMETER

VALUE

UNIT

NOTE

Wavelength

13:1290~1330
15:1525~1568
16:1600~1650
FULL: 1260~1650

nm

@Single-band: 13 or 15 or 16
@Dual-band: 13&15 or 15&16

Test Wavelength

1310/1550/1625

nm


Attenuation Type

Dark or Bright



Attenuation Range

40

dB


Insertion Loss

<0.8

dB

Typical value 0.6dB, without connector

Attenuation Resolution

Continue



Polarization Dependence Loss

≤0.2 @15dB

dB


Wavelength Dependence Loss

≤1.0 @15dB

dB

Regular size

≤0.5 @15dB


Ultra low WDL

Return Loss

≥50

dB


Durability

≥1x109

cycle


Maximum Optical Power

≤500

mW


Electrical and Mechanical Specification

PARAMETER

VALUE

UNIT

NOTE

Switch Mode

Non-latching



Control Voltage

<60

V

Cylindric package

Dimension

Φ5.5×26

mm

Cylindric package

Φ5.5×16

Cylindric package Mini 1

Φ3.5×16

Cylindric package Mini 2

Environmental conditions

PARAMETER

VALUE

UNIT

NOTE

Operation Temperature

-5~65

°C


Storage Temperature

-40~85

°C


Operation Humidity

5~95

%RH


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