20020085252-A1 is referenced by 1 patents.

Interleavers for optical systems, including multiplexers and demultiplexers, are based on the use of non-birefringent elements in combination with polarization beam splitter to provide differential retardation effects for generation of precise transmittance functions. The retardation elements, in one particular example, are non-birefringent glasses arranged in individually athermal stages but the optical beams propagated through them are maintained in selected polarization states in each stage. Between or within the stages the polarization vectors are varied to match phase to a selected standard, such as an ITU grid. Within the stages, selected beam angle adjustments are made to shape the output transmittance characteristic.

Title
Interleaver filters employing non-birefringent elements
Application Number
9/898469
Publication Number
20020085252
Application Date
July 5, 2001
Publication Date
July 4, 2002
Inventor
Don Zambos
Santa Monica
CA, US
Xian Li Yeh
Walnut
CA, US
Xiaolin Tong
Irine
CA, US
George A Rakuljic
Santa Monica
CA, US
William K Marshall
Pasedena
CA, US
Victor Leyva
Pasedena
CA, US
Anthony S Kewitsch
Santa Monica
CA, US
Avishay Eyal
Pasedena
CA, US
Gang Paul Chen
Monterey Park
CA, US
Agent
Jones Tullar & Cooper PC
VA, US
IPC
H04J 14/06
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