公开(公告)号：MY173909A

公开(公告)日：2020-02-27

申请号：MYUI2013004372

申请日：2013-12-04

Applicant: MIMOS BERHAD

Inventor： MOHAMED RIDZA WAHIDDIN ,  MOHD NORZALIMAN BIN MOHD ZAIN ,  MOHD FARED BIN ABDUL KHIR

Abstract: The present invention provides an automated flipping apparatus and method to orthogonally rotate six degenerate polarization state (H, V, D, A, R, and L) in an automated manner by utilizing two active non-linear materials act as half wave plate (HWP) with different preset orientation (45 degree or O degree or vice versa) triggered by half wave voltage. The apparatus (100) for automated flipping of an optical pulse input (108) using six states out from three bases to obtain 6DP quantum key distribution protocol comprising at least one source (102) to prepare at least two non-orthogonal optical pulses; at least a detection module (104) to deterministically measure said pulse pair; at least one data processing module (106, 116) at each end to process said pulse pair; and at least one optical polarization flipper (112) to orthogonally rotate polarization states of received optical pulses. The at least one optical polarization flipper (112) to orthogonally rotate polarization states of received optical pulses further comprising at least two active non-linear materials (202, 204) utilized to act as half wave plates (HWP) positioned in series with optical path of input; the first non-linear material (202) is orientated at 45 degree from optical axis of an incoming optical pulse and the second non-linear material (204) is orientated at O degree from optical axis of the incoming optical pulse; and the polarization states are triggered by half wave voltage generated by the HWP to automatically flip said polarization state to horizontal (H), vertical M, diagonal (D), anti- diagonal (A), circular right (R), and circular left (L).

公开(公告)号：MY187829A

公开(公告)日：2021-10-26

申请号：MYPI2013702314

申请日：2013-11-29

Applicant: MIMOS BERHAD

Inventor： MUHAMMAD SYARGAWI BIN ABDULLAH ,  MOHD NORZALIMAN BIN MOHD ZAIN ,  MOHD FARED BIN ABDUL KHIR ,  GUNAWAN WITJAKSONO ,  SUHAIRI BIN SAHARUDIN

IPC: G01J3/44 ,  G01N21/64 ,  G01N21/77

Abstract: A luminescence based water quality sensor system (10) comprises a dual sensor material (300) having at least one layer of two indicator sensor dyes that display two largely different decay times in a single hydrogel matrix, in which each indicator sensor dyes measures a specific analyte relating to water quality, a light source (100) which provides photon source to the dual sensor material (300), an excitation source (200) which includes a polarization controller (201) to modulate and polarize the light source (100), and a detector unit (400) having a spectral filter (401) to filter the emission wavelength before detecting by a photodetector (402). The changes of the analyte to be measured quenches the luminescence emission of a sensor dye by determining the decay time of a reference indicator by measurement of the phase shift of the detected emission signal at two different modulation frequencies for a real- time and simultaneous calculation of the concentration of at least two analytes to be measured.

公开(公告)号：MY175089A

公开(公告)日：2020-06-05

申请号：MYPI2013002760

申请日：2013-07-24

Applicant: MIMOS BERHAD

Inventor： DR SUHAIRI BIN SAHARUDIN ,  DR MOHD FARED BIN ABDUL KHIR ,  ZULKIFLI BIN MAHMUD ,  MUHAMMAD SYARGAWI BIN ABDULLAH ,  MOHD NORZALIMAN BIN MOHD ZAIN

Abstract: 1. A quasi-distributed optical fiber sensor (3) for measuring oxygen, comprising: a linear launching optical fiber (31) at center; and a probe optical fiber (32) enclosing the linear launching optical fiber (31); wherein the probe optical fiber (31) includes a plurality of sensor elements (33, 34, 35) sequentially located at its distal stretch, and wherein each sensor element (33, 34, 35) contains an oxygen sensitive nano-material and is formed by etching cladding first and then coating with the oxygen sensitive nano-material; wherein the oxygen sensitive nanomaterial in each of the plurality of sensor elements (33, 34, 35) has different fluorescence emission wavelength; and wherein the oxygen sensitive nano-materials include Tris(4,7-diphenyl-1,10- phenanthroline)ruthenium(II), Platinum(II)-5,10,15,20-tetrakis-(2,3,4,5,6- pentafluorphenyl)-porphyrin, and Palladium(II)-5,10,15,20-tetrakis-(2,3,4,5,6- pentafluorphenyl)-porphyrin. 2. The quasi-distributed optical fiber sensor (3) of claim 1, wherein the oxygen sensitive nano-materials are entrapped in an oxygen permeable and optically clear sol gel matrix for coating.