MEMS Variable Optical Attenuators: Single and Multi-Channel

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Specifications

Number Of Channels: Single Channel, Multi Channel
Operating Wavelength Range: 780 – 2000 nm
Dynamic Attenuation Range (max): 40 dB
Insertion Loss (max): 0.8 dB
Return Loss (min): 45 dB
Number Of Channels: Single Channel: 1, Multi Channel: 4, 8, … 40
Operating Wavelength Range: C or L band
Dynamic Attenuation Range: Max. 40 dB
Attenuation Without Power: Normally Closed or Open
Attenuation Resolution: Continuous
Insertion Loss: < 0.8 dB
Return Loss: Min. 45 dB
Response Time (Typical) For 6.5 Volt VOA: 2.0 msec
Polarization Dependent Loss (PDL) At 0, 10, 20 DB Attenuation: Single Channel: 0.10, 0.30, 0.50 dB, Multi Channel: 0.10, 0.30, 0.60 dB
Wavelength Dependent Loss (WDL) At 0, 10, 20 DB Attenuation: 0.20, 0.60, 1.50 dB
Temperature Dependent Loss (TDL) At 0, 10 DB Attenuation: 0.30, 1.10 dB
Repeatability (After 100 Cycles): 0.1 dB
Ripple: 0.2 dB
Maximum Optical Power: 500 mW
Polarization Mode Dispersion (PMD): 0.05 psec
Telcordia Spec: GR-1209, GR-1221
Fiber Type: SMF 28e +
Mechanical Dimensions: See Drawing
Power Consumption: Single Channel: < 10 mW, Multi Channel: < 10 x n2 mW
Driving Voltage: 0–6.5V or 0–18 V DC
Electrical Interface: Analog
Hermeticity (MEMS Only): < 10-7 atm.cm3/s
Operating Temperature Range: Single Channel: -5 to +70 °C, Multi Channel: -5 to +65 °C
Storage Temperature: - 40 to +85 °C
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Features


  • Telcordia GR-1209 and GR-1221 qualified

  • Small size and low cost

  • Available in single channel and 4 & 8 channel arrays

  • Higher port counts up to 40 VOAs per module

  • Normally open or normally closed configuration

  • Low voltage (6.5 V) or high voltage (18 V)

  • Single mode or PM fiber options

  • Analog DC voltage control

  • Independent continuous attenuation control for each channel

  • Fast response and low insertion loss

  • High dynamic range and low WDL, PDL, TDL

  • Very low power consumption and crosstalk

  • Stable and repeatable in open loop operation

  • Best-in-class resistance to shock & vibration

Applications


  • Signal power management in optical networks

  • Dynamic optical power control and channel equalization in add/drop multiplexers

  • Power balancing before modulation and multiplexing

  • Active gain equalization in DWDM systems

  • Power control into receivers

  • Gain tilt control in EDFAs

  • Channel balancing for optimizing transmission performance in long-haul and metro networks

  • Test equipment