We study optical-feedback effects using an integrated laser-modulator/amplifier. Our experiment and theory are agree well and provide interesting results of feedback effects on optical spectrum, spatial-hole burning, the photon density profile, and the microwave modulation. OCIS codes: (140.3430); (230.3120)

Redundancy is a major concern to satellite communication amplifier systems. This paper examines the various types of redundant systems used in satellite communication systems from a system reliability viewpoint. To overcome the ambiguities involved with comparing MTBFs, the paper discusses amplifier reliability based on static reliability concepts. Both traditional switched redundant systems an...

This paper presents the procedures involved in design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization analysis, Computer Aided Design (CAD) tool know as Agilent Advanced System (ADS) was employed. The amplifier device- FLC317MG-4 FET, tested for stability, observed to be unconditionally stable between 2 6 GHz frequency band. Two possible i...

The act of observing a quantum object fundamentally perturbs its state, resulting in random walk toward an eigenstate the measurement operator. Ideally, is responsible for all dephasing state. In practice, imperfections apparatus limit or corrupt flow information required feedback protocols, effect quantified by efficiency. Here we demonstrate efficient superconducting qubit using nonreciprocal...

The design and development of a cryogenic Ultra-Low-Noise Signal Amplification (ULNA) and detection system for spectroscopy of ultra-cold systems are reported here for the operation in the 0.5 4 GHz spectrum of frequencies (the “L” and “S” microwave bands). The design is suitable for weak RF signal detection and spectroscopy from ultra-cold systems confined in cryogenic RF cavities, as entailed...