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Anticipated expiration legal-status Critical Status Ceased legal-status Critical Current Links Assignors: PAN, JING-JONG Application granted granted Critical Publication of US5208876A publication Critical patent/US5208876A/en Assigned to JDS UNIPHASE CORPORATION reassignment JDS UNIPHASE CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Earliest Opto-isolators (1960s) Source of light: -Incandescent light bulbs (initially) -Neon lamp- When control intensity was not important or available current was too. proposed cavity can support unidirectional operation without optical isolators. f TYPES OF OPTICAL ISOLATOR: 1) Resistive Opto-isolators. erbium-doped fiber laser in a unidirectional cavity without isolator. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by E Tek Dynamics Inc filed Critical E Tek Dynamics Inc Priority to US07/786,434 priority Critical patent/US5208876A/en Assigned to E-TEK DYNAMICS, INC. Isolation loss should be as large as possible, typical value-40 to 50db. Original Assignee E Tek Dynamics Inc Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Ceased Application number US07/786,434 Inventor Jing-Jong Pan Current Assignee (The listed assignees may be inaccurate.
Optical isolator 716 pdf#
Google Patents US5208876A - Optical isolatorÄownload PDF Info Publication number US5208876A US5208876A US07/786,434 US78643491A US5208876A US 5208876 A US5208876 A US 5208876A US 78643491 A US78643491 A US 78643491A US 5208876 A US5208876 A US 5208876A Authority US United States Prior art keywords grin lens optical fiber optical polarizer optical isolator Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. COMMFRONT Industrial RS232 Optical Isolator, 3-Wire, 5000V Isolation, Port-Powered, 600W Surge Protection and 15kV Static Protection.