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Substrates for DWDM and Gain-Flattening Filters (WMS Series)
Ohara has developed a series of glass substrate materials specifically
designed for Wavelength Division Multiplexing Filters. These glass materials,
the WMS series, offer significantly improved thermal drift performance relative
to existing glass types. The high CTE and strength combined with excellent
transmission in the 1550nm ITU grid window make our WMS substrates the optimum
choice for meeting strict performance requirements. Superior surface finishes
along with WMS substrates' environmental durability improves production yields
and long-term performance specifications.
ADVANTAGES:
- High expansion coefficients for producing low-thermal drift filters.
- High mechanical strength
- High surface hardness to achieve optimum surface finish
- Excellent chemical durability for long-term environmental stability and better processing results
- Excellent thermal durability for high temperature processing
Physical Properties of WMS Series Glasses: