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Angular constraint on light-trapping absorption enhancement in solar cells
Angular constraint light-trapping absorption enhancement solar cells
2015/8/10
Light trapping for solar cells can reduce production cost and improve energy conversion efficiency.Understanding some of the basic theoretical constraints on light trapping is therefore of funda...
Optimization of Cost Efficient Multilevel-ASK Modulation Formats under the Constraint of Chromatic Dispersion
Modulation Fiber optics communications
2015/6/5
Due to their narrow spectrum, multilevel modulation ASK-formats can increase the chromatic dispersion tolerance of optical systems. Since they suffer more from inter-symbol interference than binary si...
En Route to Grouping-Constraint Free,Colorless Directionless ROADMs
Networks Optical Communications All-Optical Networks
2015/6/5
WSS-based ROADM architecture limits local transponder wavelengths to a grouping constraint.3D-switch-based architecture offers powerful solution without grouping constraint. This paper presents an upd...
A Scalable Constraint-based Path Computation Approach in Multi-domain Optical Networks
Networks Optical communications
2015/6/4
Inter-domain network information distribution becomes the bottleneck of constraint-based path computation in multi-domain optical networks. This article proposes scalable DHT-based path computation ap...
Overcoming gain-bandwidth product constraint in slow light Raman amplification with the use of light-stopping schemes
Overcoming gain-bandwidth product constraint slow light Raman cation
2015/8/10
We show that a light-stopping system with Raman amplification can overcome the gain-bandwidth constraint of slow light Raman amplification systems. The gain scales linearly with the time t...
Impairment Constraint Based Routing (ICBR) with Service Differentiation in Survivable WDM Networks
Impairment Constraint Based Routing (ICBR) Service Differentiation Survivable WDM Networks
2015/7/14
We propose and evaluate a novel survivable Impairment Constraint Based Routing (ICBR) algorithm with service differentiation at the Bit Error Rate level. Simulations show significant improvement in co...
Optical Multicast Tree Construction Algorithm Considering SNR Constraint and 3R Regeneration
Optical Multicast Construction Algorithm SNR Constraint Regeneration
2015/8/3
We propose a novel multicast tree construction algorithm for video distribution/multicasting. The algorithm successfully handles the optical signal impairments caused by transmission and branching, an...