Investigation of Multiwavelength Optical Power Limiting Amplifier and its Applications in High-Speed Sonet Wavelength-Division Multiplexing Self-Healing Ring Network

1997 ◽  
Vol 08 (04) ◽  
pp. 767-777
Author(s):  
Yung-Kuang Chen ◽  
Shien-Kuei Liaw ◽  
Sien Chi
Keyword(s):  
Wavelength Division Multiplexing ◽  
High Speed ◽  
Dynamic Range ◽  
Noise Figure ◽  
Optical Power ◽  
Low Noise ◽  
Self Healing ◽  
Channel Output ◽  
Limiting Amplifier ◽  
Optical Power Limiting

A multiwavelength optical power limiting amplifier (OLA) for high-speed SONET self-healing ring (SHR) networks is reported. Four possible OLA configurations are investigated. We find that the configuration consisting of a high-gain common erbium-doped fiber amplifier (EDFA) followed by a grating-multiplexed multiple-power-EDFA module is the best scheme for multiwavelength power-limiting operation. A constant channel output of > 11 dBm, small inter-channel power variation of ≤ 0.5 dB, and fairly low noise figure are obtained within a large dynamic range of 45 dB. Network application in a SHR network is also demonstrated and the ring size of 150 km served by a single three-WDM-channel OLA at channel rates of 2.488 Gb/s is obtained.

Optical power limiting amplifier and its applications in an SONET self-healing ring network

1992 ◽  
Vol 10 (2) ◽  
pp. 206-214 ◽  
Author(s):  
W.I. Way ◽  
T.-H. Wu ◽  
A. Yi-Yan ◽  
M. Andrejco ◽  
C. Lin
Keyword(s):  
Optical Power ◽  
Self Healing ◽  
Ring Network ◽  
Limiting Amplifier ◽  
Optical Power Limiting

A Low-Noise, Low-Power, Wide Dynamic Range Logarithmic Amplifier for Biomedical Applications

2018 ◽  
Vol 27 (07) ◽  
pp. 1850104 ◽  
Author(s):  
Yuwadee Sundarasaradula ◽  
Apinunt Thanachayanont
Keyword(s):  
Low Power ◽  
Biomedical Applications ◽  
Dynamic Range ◽  
Supply Voltage ◽  
Low Noise ◽  
Power Supply Voltage ◽  
Wide Dynamic Range ◽  
Dc Offset ◽  
Limiting Amplifier ◽  
Logarithmic Amplifier

This paper presents the design and realization of a low-noise, low-power, wide dynamic range CMOS logarithmic amplifier for biomedical applications. The proposed amplifier is based on the true piecewise linear function by using progressive-compression parallel-summation architecture. A DC offset cancellation feedback loop is used to prevent output saturation and deteriorated input sensitivity from inherent DC offset voltages. The proposed logarithmic amplifier was designed and fabricated in a standard 0.18[Formula: see text][Formula: see text]m CMOS technology. The prototype chip includes six limiting amplifier stages and an on-chip bias generator, occupying a die area of 0.027[Formula: see text]mm2. The overall circuit consumes 9.75[Formula: see text][Formula: see text]W from a single 1.5[Formula: see text]V power supply voltage. Measured results showed that the prototype logarithmic amplifier exhibited an 80[Formula: see text]dB input dynamic range (from 10[Formula: see text][Formula: see text]V to 100[Formula: see text]mV), a bandwidth of 4[Formula: see text]Hz–10[Formula: see text]kHz, and a total input-referred noise of 5.52[Formula: see text][Formula: see text]V.

scholarly journals EDFA AND EYCDFA POWER BOOSTER FOR SECURED, HIGH SPEED AND MULTIPLE WAVELENGTH SERVICES IN OPTICAL COMMUNICATION SYSTEMS USING WDM AND QUAD-SINGLE FORWARD AND TRI BACKWARD PUMPING TECHNIQUE

2021 ◽  
Vol 5 (12) ◽  
Author(s):  
S. Semmalar ◽  
S. Malarkkan
Keyword(s):  
Wavelength Division Multiplexing ◽  
Optical Communication ◽  
Communication Systems ◽  
High Speed ◽  
Optical Power ◽  
Fiber Amplifier ◽  
Signal Power ◽  
Erbium Doped Fiber Amplifier ◽  
Output Optical Power ◽  
Wavelength Division

Proposed the EDFA and EYCDFA power booster (Erbium Doped Fiber Amplifier- Erbium ytterbium co doped fiber amplifier) with quad pumping for high speed and multi wavelength services in an optical communication. The proposed EDFA and EYCDFA power booster with WDM(Wavelength division multiplexing) simulated by dual forward and Backward pumping, Dual-backward pumping, Tri-single forward and dual backward pumping and Quadsingle forward and tri-backward pumping with respect to Pump power and fiber Length. The parameters Input Optical power, Output Optical power, Forward Signal power, Backward Signal power measured and determined the speed of transmission in all types of pumping methods. From that the proposed EDFA- ans EYCDFA power booster with WDM quad pumping is the best suitable for secured high speed optical telecommunication systems. The results shown in Quad pumping Output optical power is maximum 25.2dB and optimum spectral forward Signal power is 30.5dBm and very less spectral optical backward signal power of -25.4dBm with Length 5m

scholarly journals Influence of ASE Noise on Performance of DWDM Networks Using Low-power Pumped Raman Amplifiers

2015 ◽  
Vol 25 (2) ◽  
pp. 147
Author(s):  
Bui Trung Ninh ◽  
Nguyen Quoc Tuan ◽  
Ta Viet Hung ◽  
Nguyen The Anh ◽  
Pham Van Hoi
Keyword(s):  
Low Power ◽  
Wavelength Division Multiplexing ◽  
Bit Error Rate ◽  
Error Rate ◽  
Network Performance ◽  
Noise Figure ◽  
Chromatic Dispersion ◽  
Low Noise ◽  
Wavelength Division ◽  
Raman Amplifiers

We present the results of investigation  for  influence of amplified spontaneous emission (ASE) noise, noise figure (NF) and  chromatic dispersion on the performance of middle-distance Dense-wavelength-division-multiplexing (DWDM) networks using low-power pumped distributed Raman amplifiers (DRAs) in two different pump configurations, i.e., forward and backward pumping. We found that the pumping configurations, ASE noise, and dispersion play an important role for improving network performance by decrease of noise figure and bit error rate (BER) of the system. Simulation results show that the lowest bit error rate and low noise figure were obtained, when using forward pumping configuration. Moreover, we have also compared ASE noise powers of the simulation with these of the experiment. These results conclude that DRA with low pump power  ($<1$~W) is the promising key technology for short-- and/or middle-distance DWDM transmission networks.

Design of a Front-End for Satellite Receiver

2016 ◽  
Vol 6 (5) ◽  
pp. 2282 ◽  
Author(s):  
Tran Van Hoi ◽  
Ngo Thi Lanh ◽  
Nguyen Xuan Truong ◽  
Nguyen Huu Duc ◽  
Bach Gia Duong
Keyword(s):  
Dynamic Range ◽  
Noise Figure ◽  
High Sensitivity ◽  
Wide Band ◽  
Local Oscillator ◽  
Low Noise ◽  
Voltage Controlled Oscillator ◽  
Front End ◽  
L Band ◽  
Satellite Receiver

<p>This paper focuses on the design and implementation of a front-end for a Vinasat satellite receiver with auto-searching mechanism and auto-tracking satellite. The front-end consists of a C-band low-noise block down-converter and a L-band receiver. The receiver is designed to meet the requirements about wide-band, high sensitivity, large dynamic range, low noise figure. To reduce noise figure and increase bandwidth, the C-band low-noise amplifier is designed using T-type of matching network with negative feedback and the L-band LNA is designed using cascoded techniques. The local oscillator uses a voltage controlled oscillator combine phase locked loop to reduce the phase noise and select channels. The front-end has successfully been designed and fabricated with parameters: Input frequency is C-band; sensitivity is greater than -130 dBm for C-band receiver and is greater than -110dBm for L-band receiver; output signals are AM/FM demodulation, I/Q demodulation, baseband signals.</p>

scholarly journals Plug-and-play transceiver with high gain and ultra low noise figure for IEEE 802.15.4 application

2019 ◽  
Vol 32 (2) ◽  
pp. 231-238
Author(s):  
Josue Lopez-Leyva ◽  
Miguel Ponce-Camacho ◽  
Ariana Talamantes-Alvarez
Keyword(s):  
High Speed ◽  
Ieee 802.15.4 ◽  
Noise Figure ◽  
Impedance Matching ◽  
High Gain ◽  
Low Noise ◽  
Scattering Parameters ◽  
Performance Simulation ◽  
Noise Amplifier ◽  
And Performance

This paper shows the design and performance simulation of a 2.4 GHz plugand- play transceiver based on a high speed switch for IEEE 802.15.4 applications. The electrical design was optimized taking into account the scattering parameters, inputoutput impedance matching and minimum trace width. The simulation results show an important performance regarding the Noise Figure (0.38 dB) and gain (21 dB) at particular temperature for reception mode, transmission scattering parameters (S12 and S21) and reflection scattering parameters (all the rest parameters) for both mode operation (Power Amplifier and Low Noise Amplifier).

scholarly journals Hybrid Pixel EELS Detector: Low Noise, High Speed, and Large Dynamic Range

2020 ◽  
Vol 26 (S2) ◽  
pp. 1928-1930
Author(s):  
Benjamin Plotkin-Swing ◽  
Tracy Lovejoy ◽  
Niklas Dellby ◽  
George Corbin ◽  
Matthew Hoffman ◽  
...  
Keyword(s):  
High Speed ◽  
Dynamic Range ◽  
Low Noise ◽  
Large Dynamic Range
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