Invention Grant
- Patent Title: Method for brightness enhancement and modes manipulation of a multimode optical fiber
- Patent Title (中): 多模光纤的亮度增强和模式操作的方法
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Application No.: US14404221Application Date: 2013-05-26
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Publication No.: US09329416B2Publication Date: 2016-05-03
- Inventor: Dan Vadim Regelman , Yehonatan Segev , Shay Yosub
- Applicant: RAFAEL ADVANCED DEFENSE SYSTEMS LTD.
- Applicant Address: IL Haifa
- Assignee: RAFAEL ADVANCED DEFENSE SYSTEMS LTD.
- Current Assignee: RAFAEL ADVANCED DEFENSE SYSTEMS LTD.
- Current Assignee Address: IL Haifa
- Agency: Roach Brown McCarthy & Gruber, P.C.
- Agent Kevin D. McCarthy
- Priority: IL220027 20120528
- International Application: PCT/IL2013/050452 WO 20130526
- International Announcement: WO2013/179281 WO 20131205
- Main IPC: G02F1/035
- IPC: G02F1/035 ; G02B6/14 ; G02F1/01 ; H01S3/067

Abstract:
The invention relates to adaptive optics techniques applied to alter the modal structure of light propagating in an optical fiber. In particular the invention relates to altering the modal structure in a multimode beam propagating in a multimode fiber by lowering the number of higher modes. The method comprises combining a wavefront sensor and/or a power sensor with a phase control actuator and actuator control algorithms, to alter the phase structure of the beam thereby to eliminate higher modes. The corrected beam can be then effectively coupled into a smaller diameter fiber with minimum loss of energy and concentrated to smaller spot sizes limited by diffraction.
Public/Granted literature
- US20150131936A1 METHOD FOR BRIGHTNESS ENHANCEMENT AND MODES MANIPULATION OF A MULTIMODE OPTICAL FIBER Public/Granted day:2015-05-14
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