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Optical Interleavers
GROWSFIBER's Optical Interleavers are used as a DeMux or Mux device to separate or combine the Even and Odd channel signals. Each optical interleaver device is optimized to cover either C- or L-band wavelengths, with the option of covering C+L band. The current optical interleaver portfolio supports 100GHz-200GHz, 50GHz-100GHz, 25GHz-50GHz, and other custom channel spacings. The DeMux/Mux interleavers can be effectively copackaged into a single box for easy handling and cost-saving. Dual-stage optical interleavers (such as 25GHz-100GHz channel spacing) and asymmetric interleavers (Even and Odd channels with different passband bandwidths) are also available.
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  • Wide and flat passband
  • Minimal PDL
  • High channel isolation
  • Minimal thermal drift
  • Low and customizable dispersion
  • Low insertion loss & IL uniformity
  • Dual C- and L-band coverage
  • DeMux/Mux co-packaged solution available
  • Asymmetric/uneven optical interleaver available
  • RoHS compliant (lead free)
  • Telecordia GR-1221-CORE and GR-1209-CORE
  • Extend existing network capacity
  • Bridge existing & new DWDM platforms
  • System upgrade
  • Bi-directional networks
  • Total signal power detection for Ramanamplifier
  • Multi-wavelength transponder
  • Flat-top comb filter
Parameter Unit Value
Operating Wavelength Range nm C-band (1528~1568nm); L-band (1568~1610nm)
Channel Spacing GHz 100GHz~50GHz
Central Wavelength nm ITU-T Grid
Wavelength accuracy @1dB BW nm ±0.04
Channel Clear Passband GHz ±8
Insertion Loss (within clear passband) dB ≤2.0 without connector
Passband Width @0.5dB GHz ≥20
Passband Width @20dB GHz ≤72
Ripple (within clear passband) dB ≤0.5
Insertion Loss Uniformity dB ≤0.5
Channel Isolation dB ≥23 over ITU±8GHz
Polarization Dependent Loss (PDL) dB ≤0.5
Return Loss dB ≥40
Directivity dB ≥50
PMD (within clear passband) ps ≤0.2
Chromatic Dispersion ps/nm ±75
Operation Temperature -5~65
Storage Temperature -40~+85

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