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Home > Products > Optical Interleavers > Switchable Optical Interleaver / De-Interleaver
Switchable Optical Interleaver / De-Interleaver  
 
Optoplex Switchable Optical Interleaver / De-Interleaver
Optoplex Switchable Optical Interleaver / De-Interleaver
     
  • Description
  • Features
  • Applications
  • Specification
  • Parameter Definition
Product Description - Switchable Optical Interleaver

In a switchable interleaver, there are two operation modes:

  • Mode A: All pass
  • Mode B: Interleaver

In Mode A, the system operates at any channel spacing, in which all channels pass through the device and output from one of the two output ports as if there is no extra device inserted. When the system is switched to Mode B, the device operates as a normal optical interleaver, such 50-100GHz interleaver. The working principle is schematically shown below.

In Mode B, the device could be a standard symmetric interleaver, or an asymmetric interleaver. Channel spacings are not limitted to 50-100GHz. They can be any frequency pair: between N-GHz and 2N-GHz.

Two modes of Optoplex switchable interleaver
Features and Benefits of Switchable Optical Interleaver
  • Low hit Lloss During Switching
  • Latching
  • 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
  • Super-Band Version Available
  • Customized Channel Spacing
  • Asymmetric/Uneven Optical Interleaver Available
  • Telcordia GR-1221/63 Qualified
Applications of Switchable Optical Interleaver
  • Upgrade system from 2N-GHz to N-GHz
  • Extend Existing Network Capacity
  • Bridge Existing & New DWDM Platforms
  • Bi-Directional Networks
  • Total Signal Power Detection for Raman Amplifier
  • Multi-Wavelength Transponder
Standard Specifications of Switchable Optical Interleaver
Please see Specification of Standard Interleaver
Parameter Definition of Optical Interleaver

Parameter Definition

 Example

Wavelength Range (nm) is the spectral range over which the optical interleaver's optical performance can be met.

1530.33 - 1563.05 nm

Insertion Loss (dB) is the relative power level transmitted to the output ports referenced to the 0-dB level when the optical interleaver is inserted. It is the power difference between the 0-dB level and the minimum power level measured within a given passband window. See figure below.

1.5 dB

Ripple (dB) is defined as the power difference between the minimum loss and the maximum loss within a given passband.

0.3 dB

Passband Bandwidth (GHz) is defined as the spectral width centered at ITU grid at a given power level, typically at 0.5 dB below the minimum insertion loss point.

ITU ± 30 GHz

Isolation (dB) is defined as the power difference between maximum insertion loss measured within a given passband window and the minimum insertion loss measured within the adjacent stopband window

24 dB

 

Insertion Loss Uniformity (dB) is the difference between the maximum insertion loss and minimum insertion loss over all channels, either within one output port or both ports.

0.3 dB

Polarization Dependent Loss (PDL) (dB) is the difference between the maximum and minimum insertion loss over all polarization states within a given passband window.

0.3 dB

Chromatic Dispersion (CD) (ps/nm) is the derivative of the Group Delay versus wavelength within a given passband width.

24 ps/nm within ITU±20%FSR

Polarization Mode Dispersion (PMD) (ps) is the maximum Differential Group Delay within a given passband width.

0.2 ps within ITU±30%FSR

Optical Return Loss (dB) is the ratio between the input power and the reflected power over all polarization states at each port , RL = -10×log10(Pr/Pin).

40 dB

Operating Temperature (°C) is the ambient temperature range over which the device's performance spec can be met.

-5 to 65 °C

Storage Temperature (°C) is the ambient temperature range over which the device can be stored without affecting its intended application afterwards.

-40 to 85 °C

Product Request and Ordering Information
Please speak to Optoplex Sales persons. If you request custom-designed switchable interleaver product, please provide the following parameters:
  • Wavelength range
  • Channel spacing
  • Pass bandwidth
  • Fiber length
  • Optical connector type