Fixed Wavelength Management

 

Interleaver

Interleavers leverage a patented design to achieve high even/odd channel isolation, on 25, 50 or 100 GHz channel spacing, while maintaining low insertion loss and low chromatic dispersion. Several interleaver configurations are available including 50 to 25 GHz, 100 to 50 GHz and 200 to 50 GHz channel spacing.

 

 

 

Features

  • High isolation
  • Low insertion loss
  • Low chromatic dispersion

Applications

  • Increased spectral efficiency
  • DWDM capacity upgrades

 

DWDM Modules

DWDM multiplexer and demultiplexer modules combine a cascaded set of thin-film filters each housed in a 3-port cylindrical package. The modules are entirely passive. The filter insertion loss profiles feature flat top and steep slopes. The thin-film filters achieve high center frequency stability over the entire operating temperature range.

 

 

Features

  • Low insertion loss
  • Wide and flat pass band
  • High adjacent channel isolation

Applications

  • DWDM transmission
  • Telecom and CATV networks

 

CWDM Modules

CWDM multiplexer and demultiplexer modules are based on free-space cascaded thin-film filters integrated on an optical bench with high temperature stability. The modules are entirely passive. The filter insertion loss profiles feature flat top and steep slopes. The thin-film filters achieve high center frequency stability over the entire operating temperature range.

 

 

Features

  • Low insertion loss
  • Wide and flat pass band
  • High adjacent channel isolation

Applications

  • CWDM transmission
  • Telecom and CATV networks

 

Band Pass & Edge Filters

Band-pass and edge thin-film filters are housed in 3-port packages. They are designed for tri-band WDM, CWDM and DWDM on 50, 100 or 200 GHz channel spacing. They are also available to multiplex 980 nm or 14xx nm pump laser wavelengths with a DWDM signal within optical amplifiers. The thin-film filters achieve high center frequency stability over the entire operating temperature range.

 

 

Features

  • Low insertion loss
  • Wide and flat pass band
  • High adjacent channel isolation

Applications

  • DWDM transmission
  • Telecom and CATV networks

 

Optical Circulators

Optical circulators route an optical signal from an input port to an output port in a non-reciprocal manner. For example, in a 3-port circulator a signal entering Port 1 will exit Port 2, a signal entering Port 2 will exit Port 3 and a signal entering Port 3 will exit Port 1. Circulators are available in 3- or 4-port configurations.

 

 

Features

  • Low 5.5 mm diameter profile
  • Low insertion loss
  • Available housed in 3- or 4-port configuration

Applications

  • Fiber Bragg grating applications
  • Tunable dispersion compensators