Diffraction GratingsDiffraction Gratings for Optical Communication

DIFFRACTION GRATINGS for Optical Communication

Features

Diffraction Gratings for optical communication are the components which take a key role in communication network system in the long term, and high reliability is demanded of them. These products have passed test in accordance with the Telcordia GR-1221-CORE which is required for the passive optical components.
These are Au coated replica gratings from master diffraction gratings manufactured by using high accuracy two-beam interference. These have high relative diffraction efficiency for TM-polarized light*1 and are suitable for optical communication, industrial measurement across near infrared spectral regions which high performance and environment resistance are required.

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Test result in accordance with Telcordia GR-1221-CORE *2

Test sample specification : Groove density 1100 grooves/mm, Blank material Borosilicateglass, Coating Gold (Au)

  • *1:Vibration of electric field oriented perpendicular to the direction of the grating grooves
  • *2:Test results are example and not guaranteed values.
  • *3:Telcordia GR-1221-CORE Item 6 Reliability Test Procedures reference
  • *4:Telcordia GR-1221-CORE Item 6 Reliability Test Procedures O6-4 reference

Test result in accordance with Telcordia GR-1221-CORE ( Change Amount of Relative Diffraction Efficiency ) ( TM-polarized light )

a) Dry Heat Test a) Dry Heat Test
b) Damp Heat Test b) Damp Heat Test
c) Low Temperature Storage Test c) Low Temperature Storage Test
d) Temperature Cycling Test d) Temperature Cycling Test