Invention Grant
- Patent Title: Zoned optical waveplate
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Application No.: US15495265Application Date: 2017-04-24
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Publication No.: US09964668B2Publication Date: 2018-05-08
- Inventor: John Michael Miller , Joel Milgram , Karen Denise Hendrix , Michael O'Leary , Hery Djie , Lu Tian , Paul Colbourne
- Applicant: Lumentum Operations LLC
- Applicant Address: US CA Milpitas
- Assignee: Lumentum Operations LLC
- Current Assignee: Lumentum Operations LLC
- Current Assignee Address: US CA Milpitas
- Agency: Harrity & Harrity, LLP
- Main IPC: G02B1/12
- IPC: G02B1/12 ; G02B5/30 ; G02B1/11 ; G02B5/18 ; G03F7/00 ; G02B27/28

Abstract:
A zoned waveplate has a series of transversely stacked birefringent zones alternating with non-birefringent zones. The birefringent and non-birefringent zones are integrally formed upon an AR-coated face of a single substrate by patterning the AR coated face of the substrate with zero-order sub-wavelength form-birefringent gratings configured to have a target retardance. The layer structure of the AR coating is designed to provide the target birefringence in the patterned zones and the reflection suppression.
Public/Granted literature
- US20170307785A1 ZONED OPTICAL WAVEPLATE Public/Granted day:2017-10-26
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