Electro-Optic Tuneable of Direct Current Voltage in Ring Resonator

2011 ◽  
Vol 403-408 ◽  
pp. 4174-4178
Author(s):  
A. Mohamad ◽  
M. S. Roslan ◽  
Saktioto Saktioto ◽  
Jalil Ali
Keyword(s):  
Applied Voltage ◽  
Power Loss ◽  
Ring Resonator ◽  
Maximum Power ◽  
Fiber Ring ◽  
Electro Optic ◽  
Current Voltage ◽  
Direct Current Voltage ◽  
Distinct Maximum ◽  
Lower Voltage

In this paper, a new design of the electro-optical tuning voltage in buried fiber ring resonator (BFRR) system is proposed. The crystals of LiNbO3, (Ba, Sr)TiO3, K(Ta, Nb)O3 and KH2PO4 are used as electro-optic core materials. The applied voltage can generate different refractive index deformation when used different electro-optic crystals. Different electro-optic crystals produce distinct maximum power loss within BFRR. The power loss in an electro-optic crystal can be controlled by tuning the applied voltage. The K(Ta, Nb)O3 crystal produce maximum power loss with lower voltage compared to other crystals.

LOW POWER AND HIGH PERFORMANCE SINGLE-ENDED SENSE AMPLIFIER

2013 ◽  
Vol 22 (07) ◽  
pp. 1350062 ◽  
Author(s):  
AJAY KUMAR SINGH ◽  
MAH MENG SEONG ◽  
C. M. R. PRABHU
Keyword(s):  
Power Consumption ◽  
High Performance ◽  
Voltage Drop ◽  
Cmos Technology ◽  
Power Efficient ◽  
Sense Amplifier ◽  
Current Voltage ◽  
Direct Current Voltage ◽  
Voltage Conversion ◽  
Lower Voltage

This paper presents a new power efficient single ended sense amplifier (SA). The proposed circuit is based on the direct current voltage conversion technique. It has been simulated using Microwind3 and DSCH3 tools (advanced BSIM 4 level) for 90 nm CMOS technology in terms of power consumption, sense time and results were compared to other circuits. The proposed SA circuit consumes more than 50% less power and gives 90% faster sensing speed compared to other circuits. The lower power consumption is due to lower leakage current, lower voltage drop on bit-line and faster speed is due to positive feedback of the circuit. The proposed circuit is more robust against any process and temperature variation.

scholarly journals Energy Flux on a Micromotor Operating under Stationary Direct Current Voltage

2021 ◽  
pp. 127197
Author(s):  
Wenyu Zhang ◽  
Kohei Ohara ◽  
Yasunao Okamoto ◽  
Erika Nawa-Okita ◽  
Daigo Yamamoto ◽  
...  
Keyword(s):  
Energy Flux ◽  
Direct Current ◽  
Current Voltage ◽  
Direct Current Voltage

Fiber Ring Resonator

1984 ◽  
Author(s):  
Ming H. Yu ◽  
David B. Hall
Keyword(s):  
Ring Resonator ◽  
Fiber Ring ◽  
Fiber Ring Resonator

AN IMPROVED PERTURBATION AND OBSERVATION BASED MAXIMUM POWER POINT TRACKING METHOD FOR PHOTOVOLTAIC SYSTEMS

2016 ◽  
Vol 78 (6-2) ◽  
Author(s):  
Ammar Hussein Mutlag ◽  
Azah Mohamed ◽  
Hussain Shareef
Keyword(s):  
Maximum Power ◽  
Pv System ◽  
Maximum Power Point ◽  
Fast Tracking ◽  
Point Tracking ◽  
Power Point Tracking ◽  
Simulink Simulation ◽  
Current Voltage ◽  
Accurate Performance ◽  
Power Point

In photovoltaic (PV) system, maximum power tracking (MPPT) is crucial to improve the system performance. Irradiance and temperature are the two important parameters that affect MPPT. The conventional perturbation and observation (P&O) based MPPT algorithm does not accurately track the PV maximum power point. Therefore, this paper presents an improved P&O algorithm (Im-P&O) based on variable perturbation. The idea behind the Im-P&O algorithm is to produce variable step changes in the reference current/voltage for fast tracking of the PV maximum power point. The Im-P&O based MPPT is designed for the 25 SolarTIFSTF-120P6 PV panels, with a capacity of 3 kW peak. A complete PV system is modeled using the MATLAB/Simulink. Simulation results showed that the Im-P&O based MPPT achieved faster and accurate performance compared with the conventional P&O algorithm.

Equations of motion from chaotic data: A driven optical fiber ring resonator

1999 ◽  
Vol 256 (1) ◽  
pp. 47-54 ◽  
Author(s):  
Henning U. Voss ◽  
Andreas Schwache ◽  
Jürgen Kurths ◽  
Fedor Mitschke
Keyword(s):  
Optical Fiber ◽  
Ring Resonator ◽  
Equations Of Motion ◽  
Fiber Ring ◽  
Optical Fiber Ring Resonator ◽  
Fiber Ring Resonator

scholarly journals A Passively Q-Switched Holmium-Doped Fiber Laser with Graphene Oxide at 2058 nm

2021 ◽  
Vol 11 (1) ◽  
pp. 407
Author(s):  
Jinho Lee ◽  
Ju Han Lee
Keyword(s):  
Graphene Oxide ◽  
Pump Power ◽  
Fiber Laser ◽  
Ring Resonator ◽  
Continuous Wave ◽  
Optical Power ◽  
Polished Surface ◽  
Fiber Ring ◽  
Q Switching ◽  
Side Polished Fiber

This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished surface to realize an all-fiber SA. A continuous-wave thulium-doped all-fiber laser, which was configured with a master-oscillator power-amplifier (MOPA) structure, was constructed as a pumping source. By inserting the fabricated SA into an all-fiber ring resonator based on 1-m length of Ho-doped fiber, Q-switched pulses could readily be obtained at a wavelength of 2058 nm. The pulse width was observed to vary from 2.01 to 1.56 μs as the pump power was adjusted from ~759 to 1072 mW, while the repetition rate was tunable from 45.56 to 56.12 kHz. The maximum values of average optical power and pulse energy were measured as ~11.61 mW and 207.05 nJ, respectively, at a ~1072 mW pump power.

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