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| Number | Title | Issue Date |
| 5223975 | Polarization beam coupler including a splitter for producing an output monitor beam A polarization beam coupler adapted to produce an output light beam for monitoring is disclosed. The polarization beam coupler includes a polarization beam coupling cube for coupling two incident light beams having polarization planes perpendicular to eac... | 06/29/1993 |
| 5015055 | Polarization coupler A polarization coupler in which a polarization maintaining fiber is employed and a process of producing such polarization coupler are disclosed. Where the polarization coupler is used, beams of light from two laser diodes can be introduced into a single o... | 05/14/1991 |
