Results 41 to 50 of about 3,650,514 (342)
On Parameter Estimation for Bandlimited Optical Intensity Channels
Computation, 2019 Parameter estimation is of paramount importance in every digital receiver. This is not only true for radio, but also for optical links; otherwise, subsequent processing stages, like detector units or error correction schemes, could not be operated ...
Wilfried Gappmair
doaj +1 more source
Optics Express, 2017 High-speed interconnects in data-center and campus-area networks crucially rely on efficient and technically simple transmission techniques that use intensity modulation and direct detection (IM/DD) to bridge distances of up to a few kilometers.
H. Zwickel +13 more
semanticscholar +1 more source
Rapidly reconfigurable optically induced photonic crystals in hot rubidium vapor [PDF]
, 2013 Through periodic index modulation, we create two different types of photonic structures in a heated rubidium vapor for controlled reflection, transmission and diffraction of light.
Cohen, Raphael +5 more
core +3 more sources
Applied Sciences, 2020 We consider an integrated electro-absorption modulator within a coupled-cavity VCSEL structure (EAM-VCSEL). We derive expressions for the modulation transfer function (MTF) of the EAM-VCSEL for small-signal modulation of either VCSEL injection current or
Krassimir Panajotov, Richard Schatz
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Intensity-Modulated Polymer Optical Fiber-Based Refractive Index Sensor: A Review
Sensors, 2021 The simple and highly sensitive measurement of the refractive index (RI) of liquids is critical for designing the optical instruments and important in biochemical sensing applications.
Chuanxin Teng +6 more
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Controllable linear $\pi$-phase modulation in a thermal atom vapor without diffraction or absorption [PDF]
, 2014 A scheme is proposed to achieve substantial controllable phase modulation for a probe field propagating through a thermal atomic vapor in double-$\Lambda$ configuration.
Evers, Jörg, Zhang, Lida
core +3 more sources
Optics Express, 2017 The feasibility of a single sideband (SSB) PAM4 intensity-modulation and direct-detection (IM/DD) transmission based on a CMOS ADC and DAC is experimentally demonstrated in this work.
Hsing-Yu Chen +4 more
semanticscholar +1 more source
All-Optical Modulation Characteristics of a Microfiber Coupler Combined Sagnac Loop
IEEE Photonics Journal, 2019 In this paper, we theoretically and experimentally investigate the all-optical modulation characteristics of a microfiber coupler combined Sagnac loop (MCSL).
Yang Yu +5 more
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Analysis and Experimental Study of a Silicon Photonic Single MRM-Assisted MZI PAM-4 Modulator
IEEE Photonics Journal, 2017 We report on the analysis and experimental study of a silicon photonic single microring modulator (MRM) assisted Mach–Zehnder interferometer for high-speed four-level pulse amplitude modulation (PAM-4).
Rui Li +7 more
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, 2010 We utilize various techniques to characterize the residual phase modulation of a fiber-based Mach-Zehnder electro-optical intensity modulator. A heterodyne technique is used to directly measure the phase change due to a given change in intensity, thereby
Auracher +27 more
core +1 more source