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Advancements in light modulator technology have been driving discoveries and progress across various fields. The problem of large-scale coherent optical control of atomic quantum systems-including cold atoms, ions, and solid-state color…

A high step up dc dc converter based on an isolated dc dc converter with voltage multiplier cells for photovoltaic systems is essentially introduced in this paper. The proposed converter can provide a high step up voltage gain. The switch…

Systems and Control · Electrical Eng. & Systems 2019-09-13 Mamdouh L. Alghaythi , Robert M. Oconnell , Naz E. Islam

This article analyzes the design of a low-noise amplifier intended as the input front-end for the measurement of the low-frequency components (below 10 Hz) of a 50 Ohm source. Low residual flicker is the main desired performance. This…

Instrumentation and Detectors · Physics 2009-11-11 Enrico Rubiola , Franck Lardet-Vieudrin

By combining the large Purcell effect of photonic crystal nanocavity and the strong plasma dispersion effect of the transparent conductive oxides, ultra-compact silicon modulators with heterogeneously integrated indium-tin-oxide (ITO) can…

Applied Physics · Physics 2021-02-03 Erwen Li , Bokun Zhou , Yunfei Bo , Alan X. Wang

A compact Kerr-lens mode-locked thin-disk oscillator delivering 110 MW output peak power, the highest among all oscillators, is reported. A pulse train with a repetition rate of 14 MHz carries 115 fs long, 14.4 uJ pulses resulting in 202 W…

Optics · Physics 2022-04-12 Semyon Goncharov , Kilian Fritsch , Oleg Pronin

This paper formally shows that an exponentially rising current is optimal in terms of resistive ohmic loss for driving a semiconductor laser into the gain-switching mode. A metric to quantify the quality of laser operation that measures the…

Systems and Control · Electrical Eng. & Systems 2023-10-27 Alex Borisevich

In this work, we propose and demonstrate a module to linearly add an arbitrary amount of continuous (reset-free) phase delay to an optical signal. The proposed endless optical phase delay (EOPD) uses an optical IQ modulator and control…

Signal Processing · Electrical Eng. & Systems 2021-06-18 Rakesh Ashok , Sana Naaz , Shalabh Gupta

This expository manuscript presents generalized expressions for the low-frequency voltage gain and terminal impedances of each of the three fundamental bipolar-amplifier topologies (i.e., common emitter, common base, and common collector).…

Hardware Architecture · Computer Science 2023-09-19 Brian Hong

As a concern with the reliability, bandwidth and mass of future optical links in LHC experiments, we are investigating CW lasers and light modulators as an alternative to VCSELs. These links will be particularly useful if they utilize light…

Instrumentation and Detectors · Physics 2015-06-05 D. G. Underwood , G. Drake , W. S. Fernando , R. W. Stanek

High efficiency and a compact footprint are desired properties for electro-optic modulators. In this paper, we propose, theoretically investigate and experimentally demonstrate a recirculating phase modulator, which increases the modulation…

As a result of improvements in power semiconductors, moderate frequency switching supplies can now provide the hundreds of amps typically required by accelerators with zero-to-peak noise in the kHz region ~0.06% in current or voltage mode.…

Accelerator Physics · Physics 2015-05-20 Jay Benesch , Sarin Philip , Thomas Jefferson National Accelerator Facility

Electrooptic modulation performs the conversion between the electrical and optical domain with applications in data communication for optical interconnects, but also for novel optical compute algorithms such as providing nonlinearity at the…

Applied Physics · Physics 2017-10-12 Volker J. Sorger , Rubab Amin , Jacob B. Khurgin , Zhizhen Ma , Hamed Dalir , Sikandar Khan

New LED-transmitters have been used to develop a new method of fast analog transmission of PMT pulses over large distances. The transmitters, consisting basically of InGaAsP LEDs with the maximum emission of light at 1300 nm, allow the…

The realization of high-frequency unipolar quantum optoelectronic devices enables the demonstration of high bitrate free space data transmission in the second atmospheric window. Data-bits are written onto the laser emission using a large…

The behavior of electromagnetic waves in a medium modulated in time and space, largely investigated decades ago, has recently attracted renewed interest. Here, we solve an intriguing problem of this research: can light with an initial…

Optics · Physics 2024-08-27 M. Sumetsky

Silicon modulators are key components in silicon photonics to support the dense integration of electro-optic (EO) functional elements on a compact chip for various applications including high-speed data transmission, signal processing, and…

Spatial light modulators have desirable applications in sensing and free space communication because they create an interface between the optical and electronic realms. Electro-optic modulators allow for high-speed intensity manipulation of…

Optics · Physics 2023-09-01 Sydney Mason , Ileana-Cristina Benea-Chelmus

Preinjector VEPP-5 electron linac consists of two linear accelerators on energy 300 MeV and 510 MeV and includes 14 accelerating structures [1]. First accelerating structures both linacs have increased average rate of acceleration 25-30…

Accelerator Physics · Physics 2007-05-23 5 Team

Optical amplifiers are ubiquitous in science and technology and are the workhorse of modern communications. Currently, virtually all amplifiers rely on atomic resonances, such as rare-earth-doped fibers, or are based on III-V…

Optics · Physics 2026-05-22 Nikolai Kuznetsov , Zihan Li , Tobias J. Kippenberg