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Fundamental bounds on decay rates in asymmetric single-mode optical resonators
decay rate asymmetric single-mode optical resonators
2015/8/7
We derive tight upper and lower bounds of the ratio between decay rates to two ports from a single resonance exhibiting Fano interference, based on a general temporal coupled-mode theory formalism. Th...
Delay-Asymmetric Nonlinear Loop Mirror for Bit-Rate Variable RZ-to-NRZ Format Conversion
Delay-Asymmetric Nonlinear Loop Mirror it-Rate Variable RZ-to-NRZ Format Conversion
2015/5/15
We demonstrate RZ-to-NRZ pulse format conversion at tunable bit-rates using a delay-asymmetric nonlinear loop mirror. The input RZ-OOK signals are converted to NRZ-OOK signals with a power penalty les...
BER Improvement for RZ-DPSK Receivers Using Saturated Asymmetric Filtering
Semiconductor optical amplifiers input BER demonstrated Phase modulation
2015/6/9
We present a new enhanced receiver for noise degraded RZ-DPSK signals. A highly saturated SOA and a detuned filter are used. An error free detection for an 8 × 10 -6 input BER is demonstrated.
Bit-Rate Tunable Clock Recovery of NRZ-DPSK Signal Based on Delay-Asymmetric Nonlinear Loop Mirror and Stimulated Brillouin Scattering Loop
Nonlinear optical signal processing Scattering stimulated Brillouin Nonlinear optics four-wave mixing
2015/6/8
We demonstrate bit-rate tunable clock recovery of NRZ-DPSK signal. The signal is converted to RZ-OOK by demodulation and by phase erasure. Recovered clock signals from 4 to 13 GHz are obtained through...
Optical Code Generating Device Using 1×N Asymmetric Hollow Waveguide Couplers
Asymmetric Hollow waveguide Y-splitter
2009/8/14
An optical code generating device for security access system application is presented. The code generating device constructed using asymmetric hollow optical waveguide coupler design provides a unique...
Wavelength Transparent DPSK Demodulation Using Delay-Asymmetric Nonlinear Loop Mirror
Wavelength Transparent DPSK Demodulation Delay-Asymmetric Nonlinear Loop Mirror
2015/7/31
Wavelength transparent DPSK demodulation is demonstrated using the delay-asymmetric nonlinear loop mirror(DANLM). The operation is explained by wavelength-dependent optical path difference between the...
Sharp asymmetric line shapes in side-coupled waveguide-cavity systems
asymmetric line shapes side-coupled waveguide-cavity systems
2015/8/11
We show that, for an optical microcavity side coupled with a waveguide, sharp, and asymmetric line shapes can be created in the response function by placing two partially reflecting elements int...