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1. (WO2018086173) SPATIO-TEMPORALLY INCREMENTAL FIBER SWEPT SOURCE

Pub. No.:    WO/2018/086173    International Application No.:    PCT/CN2016/108267
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Dec 02 00:59:59 CET 2016
IPC: G02F 1/01
G01B 9/02
Applicants: THE UNIVERSITY OF HONG KONG
Inventors: WONG, Kin Yip, Kenneth
WEI, Xiaoming
Title: SPATIO-TEMPORALLY INCREMENTAL FIBER SWEPT SOURCE
Abstract:
A spatio-temporally incremental fiber sweep source includes a laser light pulse generator for generating light pulses and a fiber array (24) of individual optical fibers. The fiber array (24) has an input end (21) and an output end (23), with the fibers at the input end (21) receiving the light pulses substantially simultaneously. The optical fibers at the output end (23) are arranged in a raster scan pattern, e.g., a square pattern, wherein the optical delay in each fiber is greater than the previous one in the scan pattern direction. As a result light exits the array (24) in a completely optical two dimensional raster scan pattern. It has no moving parts, and thus no mechanical inertia, so extremely high speed scanning can be achieved.