Multichannel Electrically Controlled Variable Attenuator

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Specifications

Number Of Channels: Multi Channel
Operating Wavelength Range: 350 – 2050 nm
Dynamic Attenuation Range (max): 40 dB
Insertion Loss (max): 2 dB
Return Loss (min): 35 dB
Fiber Type: SM/PM, MM
Storage Temperature: -22°F to 158°F (-30°C to 70°C)
Operating Temperature: 14°F to 131°F (-10°C to 55°C)
Weight: 33 lb. + 0.55 lb./channel (15 kg + 0.25 kg/channel)
Dimensions: 19” 3U Rack Mount, 19” x 5.25” x 20” (48.26 x 13.33 x 50.8 cm)
Polarization Extinction Ratio (for PM Fiber): 20, 25 or 30 dB
Computer Interface: USB
Maximum Optical Power: SM/PM: up to 2 W7, MM: up to 50 mW
Power Supply: Universal 110/220V AC 50/60 Hz, 500 W
Accuracy: up to 40 dB: ±0.3 dB, 40 to 55 dB: ±0.5 dB, 55 to 60 dB: ±1.0 dB
Repeatability Of Attenuation Setting: up to 10 dB: ±0.03 dB, up to 30 dB: ±0.10 dB, up to 40 dB: ±0.3 dB
Speed: 100 ms
Return Loss: SM/PM: 40, 50 or 60 dB, MM: 35 dB
Polarization Dependent Loss - Minimum: up to 0.01 dB
Polarization Dependent Loss - Typical: up to 0.05 dB
Wavelength Dependence Of Attenuation - 1520 Nm To 1570 Nm: up to 0.1 dB
Wavelength Dependence Of Attenuation - 1300 Nm To 1550 Nm: up to 0.3 dB
Attenuation Resolution: 0.01 dB
Attenuation Range: SM/PM: IL to 60 dB, MM: IL to 40 dB
Insertion Loss (IL) - Maximum: SM/PM: 2.0 dB, MM: 4.0 dB
Insertion Loss (IL) - Typical: SM/PM: 1.0 dB, MM: 2.0 dB
Available Wavelengths: 350–2050 nm

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Features

  • High power handling (up to 2 watts)
  • Wide attenuation range (up to 60 dB)
  • Low polarization dependent loss and wavelength dependency
  • Low insertion loss and back reflection
  • High resolution
  • Rugged and compact design
  • Calibrated for dual wavelengths (1300–1550 nm) or C and L bands; can be calibrated for up to four
  • individual wavelengths
  • Wide wavelength range (350–2050 nm)
  • Wide range of receptacles
  • Blocking technique for single-mode and polarization-maintaining fibers; neutral density filter
  • technique for multimode fiber applications
  • Computer interface (USB as standard)
  • Option for integrated power monitoring for precise output power control
  • Supports up to 32 attenuators per unit
  • Choice between broad and narrow wavelength options

Applications

  • Bit error rate testing
  • Troubleshooting receivers and other active fiber optic components
  • Simulating long-distance fiber transmission
  • Design of fiber optic transmitter/receiver circuitry
  • Power meter linearity checks
  • Power settinga