Numerical and experimental investigations are carried out on the performance of parallelized Kalman filters applied for mitigation excess phase noise fast tunable lasers. Based characterization a sampled grating distributed Bragg reflector (SG-DBR) laser, proposed carrier recovery (CPR) scheme using is introduced. By performing simulations data transmission with various advanced modulation formats in presence noise, filter based CPR shows its ability to overcome this method suitable parallel...

China is confronting with large amount of renewable energy curtailment, while the distributed generation in an explosive growth. To enhance utilization, has embarked on reforms PV (DG PV) trading market. This paper introduces new reform that put forward three DG patterns –direct between and consumers, commissioned power grid sales full purchased by grid. We analyze impact interests stakeholders argue increasing integration uncertain efficient operation market require higher technologies...

A coherent optical packet transceiver based on doubly differential star 16-ary quadrature amplitude modulation (DD-star-16-QAM) is presented for spectrally and energy efficient reconfigurable networks. The coding decoding processes this new format are presented, simulations experiments then performed to investigate the performance of DD-star-16-QAM in static dynamic scenarios. results show that influence frequency offset (FO) can be cancelled out by (DD) correction range only limited...

Moisture content in transformer oil is an important index for equipment condition. Based on technical requirement of on-line monitoring moisture content, this paper presents a water solubility estimation method using least square technique. Water distribution and analyzed, the Karl-Fischer adopted to determine one sample; then, temperature relative saturation are collected by sensors. According empirical relation temperature, formula finally determined method, which ensures measurement...

An 11-pole high-performance bandpass filter (BPF) using TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">010</sub> mode dielectric ring resonators is presented in this paper. The consists of three cascaded triplets (CT) with cross-couplings which produce controllable transmission zeros (TZs). Meanwhile, the source-load coupling intendedly avoided. As a result, sharp roll-off rate passband skirt achieved, and ratio between 40-dB bandwidth 3-dB...

Effect of nonlinear gain on the phase noise Y-branch lasers is studied by numerical simulations, which are based developed transmission line model (TLM) and multimode rate equations superposed Langevin sources terms. The found to have severe effects lasers.

We experimentally demonstrate that Kalman filter based carrier phase recovery can be used to overcome the excess noise of fast tunable lasers. The proposed method also shows good performance in parallelized systems.

We demonstrate that a doubly differential two-level 8 phase shift keying (PSK) modulation format can be used to reduce the waiting time in packet switched spectrally efficient coherent systems due high frequency offset tolerance.

A compact triplet inline substrate integrated waveguide (SIW) bandpass filter is presented with sharp lower skirt and deep lower-stopband performance.The composed of two SIW rectangular cavities an embedded short-ended strip line on the top surface adjacent cavities.A transmission zero can be generated by cross coupling near passband edge, which allows implementation in skirt.Deep stopband performance inherited from SIW.To validate concept, a prototype fractional bandwidth (FBW) 4% at 5.75...

The Enhanced Scouting Logic (ESL) is a memristive logic gate family with low sensitivity to resistance variation and high device endurance. This work studies the design methods of circuits based on Voltage-Input (VIESL) gates. Both single-array dual-array synthesis are proposed. read/write separation technique VIESL gates facilitates pipelined operations. results benchmarks show that circuit generated by proposed method has best performance compared its counterparts, reduces cell counts effectively.

The wavelength convertor will be a key component in future optical reconfigurable networks order to reduce the number of power-hungry high-speed optical-electronic-optical conversions at nodes [1]. Even though FWM-based conversion advanced modulation formats have already been demonstrated [2, 3] using static, fixed-wavelength lasers; convertors with rapid, dynamic re-configurability still need investigated.