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Terabit+ (192 × 10 Gb/s) Nyquist Shaped UDWDM Coherent PON with Upstream and Downstream over a 12.8 nm Band
Terabit S Nyquist Shaped DWDM Coherent PON Upstream and Downstream 12.8 nm Band
2014/11/6
We experimentally demonstrate a bi-directional Terabit+ UDWDM coherent PON with Nyquist shaped 16QAM modulation, offering up to 10 Gb/s service capabilities per user/wavelength in a total spectrum of ...
Schrödinger Equation with a Cubic Nonlinearity Sech-Shaped Soliton Solutions
Soliton Schrö dinger Equation Cubic Nonlinearity
2013/1/30
We first analyze the sech-shaped soliton solutions, either spatial or temporal of the 1D-Schrödinger equation with a cubic nonlinearity. Afterwards, these solutions are generalized to the 2D-Schr...
Microwave Photonic Filters with a Directly Generated Gaussian-shaped Optical Frequency Comb
Microwave Photonic Filters Directly Generated Gaussian-shaped Optical Frequency Comb
2015/5/21
Using electro-optic modulators, we generate a 41-line 10-GHz spaced Gaussian-shaped optical comb. We use this comb to demonstrate apodized microwave photonic filters with greater than 43-dB sidelobe s...
Photonic Synthesis of Triangular-Shaped Pulses and Its Tunability Utilizing Frequency to Time Mapping
Triangular-Shaped Pulses Utilizing Frequency Photonic Synthesis
2015/5/15
A synthesis scheme to generate microwave triangular-shaped pulses based on spectral shaping and frequency-to-time mapping is proposed. Triangular-shaped signals with periods of 0.2ns, 0.4ns, 1.6ns and...
Topology-Optimized Slow-Light Couplers for Ring-Shaped Photonic Crystal Waveguide
Integrated optics devices Photonic crystals Waveguides planar
2015/6/4
We demonstrate a topology-optimized coupler for a ring-shaped photonic crystal waveguide to improve the coupling of light located in the slow-light regime. An enhancement of the coupling efficiency of...
Silicon-on-Insulator Ring-Shaped Photonic Crystal Waveguides for Refractive Index Sensing
Integrated optics devices Sensors Photonic crystals
2015/6/4
We present an integrated refractive index sensor based on a ring-shaped photonic crystal waveguide. We measured the shift in cut-off wavelength for different ambient refractive indices and we observed...
Volterra Nonlinear Compensation of 112 Gb/s Ultra-long-haul Coherent Optical OFDM based on Frequency-Shaped Decision Feedback
Volterra Nonlinear Compensation Ultra-long-haul Coherent Optical OFDM Frequency-Shaped Decision Feedback
2015/7/14
A novel DSP-based FWM compensation scheme for 112Gb/s CO-OFDM based on decision-feedback-aided frequency-shaped Volterra nonlinear filtering, with low O(MlogM) realization complexity, improves the wor...
Slab-Shaped 10-kW All-Solid-State Laser
All solid-state laser Slab, Diode-pumped High power
2009/6/12
This paper describes the development of diode-pumped high-power slab Nd:YAG lasers. Employing the laser diode pumping method, we realized a highly -efficient, high-power zigzag-slab laser with a small...
Fabrication and Characteristics of Ball-Shaped Sealing Caps for Infrared Hollow Fibers
Hollow fiber Sealing cap Er:YAG laser
2009/6/8
To seal the end of hollow fibers for medical uses, a sealing cap for Er:YAG laser light is fabricated by fusing a glass ball onto the end of a glass capillary. The cap has a focusing effect and the fo...
Low Penalty 80Gb/s Non-Inverted Wavelength Conversion Using a Broad Rectangular Shaped Optical Filter
Non-Inverted Wavelength Conversion Optical Filter
2015/8/4
We demonstrate non-inverted wavelength conversion at 80Gb/s based on cross-phase modulation in a SOA.Using a flat-top 6nm broad filter with sharp roll-off we achieve a penalty of only 0.5dB.