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Ping Polarization-Independent Gratings

Photonics.com
Jan 2007
Ibsen Photonics A/SRequest Info
 
Polarization-independent (PING) telecom gratings from Ibsen are produced by holographic stepper technology in 100-percent dielectric materials. This leads to unbeatable thermal and environmental stability, with no polymers, epoxies, gelatins or metals in the optical path or in the grating. Advanced etching technology ensures highest diffraction efficiency and lowest PDL over a very broad bandwidth. Low angular sensitivity is an added bonus for module design and assembly.

Benefits
  • High-diffraction efficiency and low PDL
  • Environmentally and thermally stable
  • Low sensitivity to illumination angle
  • Convenient optical design by transmission principle
  • Combined dispersion and beam folding elements
  • Low straylight
Applications
  • ROADMs
  • Wavelength blockers
  • Wavelength selective switches
  • Dynamic gain equalizers
  • Mux/demux/OSA
Main features and specifications
  • Production technology: holographic stepper and RIE etching
  • Resolution: 966.2 lines/mm
  • Bandwidth: 1525 nm - 1575 nm
  • Diffraction efficiency (TE): > 90%
  • Diffraction efficiency (TM): > 90%
  • PDL: <0.25 dB
  • Materials: 100% dielectric materials -- no polymers, epoxies, gelatins or metals
  • Class 10 cleanroom-produced and packaged


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