Proposal and Verification of Auto Calibration Technique for Bias Control Circuit Connecting to Built-In Optical Power Monitor in Imperfect IQ-Modulator

2020 ◽  
Vol E103.B (11) ◽  
pp. 1299-1304
Author(s):  
Hiroto KAWAKAMI ◽  
Shoichiro KUWAHARA ◽  
Yoshiaki KISAKA
Keyword(s):  
Optical Power ◽  
Control Circuit ◽  
Calibration Technique ◽  
Iq Modulator

SISTEM AUTOMATIC SWITCH REDUNDANT UPS UNTUK BEBAN ESSENSIAL

2019 ◽  
Vol 5 (1) ◽  
pp. 35-45
Author(s):  
Markus Dwiyanto Tobi ◽  
Alimuddin Mappa
Keyword(s):  
Power Supply ◽  
Working Condition ◽  
Control Circuit ◽  
Energy Sources ◽  
Main Equipment ◽  
Telecommunication Equipment ◽  
Input Condition ◽  
Research Designs ◽  
Switch Circuit

The role of the power supply device is to produce, process and distribute energy sources. Telecommunication equipment can only operate if it has continuous supply. Therefore, to maintain the continuity of the supply, a UPS (Uninterruptable Power Supply) device system is needed so that the supply to the Essential Load device will remain available so that continuity will be maintained. This research designs and proposes how a series of automatic redundant switch systems on UPS to ensure the availability of power supply for the main equipment of telecommunications systems. The Auto switch circuit is designed to have 3 (three) working stages which will trigger the relay driver as control circuit, namely the normal working condition of the contactor input K1 is present, the input condition is zero (lost), and the input condition is present. This system can automatically supply power to telecommunications equipment.

Towards the calculation of the optical power of an intraocular lens after thermokeratoplasty (a case report).

2018 ◽  
pp. 107-109
Author(s):  
O.I. Orenburkina ◽  
◽  
I.F. Nuriyev ◽  
A.E. Babushkin ◽  
N.A Nikitin ◽  
...  
Keyword(s):  
Case Report ◽  
Intraocular Lens ◽  
Optical Power

High Power Testing of Optical Connectors

2002 ◽  
Author(s):  
Paola Furcas ◽  
Rosanna Pastorelli ◽  
Giulia Salmini ◽  
Massimo Vanzi
Keyword(s):  
High Power ◽  
Optical Power ◽  
Environmental Issues ◽  
Optical Elements ◽  
Extraction Procedures ◽  
Equipment Operation ◽  
Burn Out ◽  
Power Testing

Abstract High optical power is considered as the source of failures in passive optical elements. Optical connectors, in particular, have been studied because of the unavoidable exposure of their optical interfaces to environmental issues during insertion and extraction. Cleaning and insertion/extraction procedures are investigated. Evidence for burn-out, depending on the different procedures, calls for new suitable rules for handling during equipment operation and testing.

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