Abstract: After pointing out some questionable assumptions of the standard beating theory, we formulate a new semiclassical wave theory of the noise in optical amplifiers. The theory is simple yet ...

We have numerically analyzed nondegenerate four-wave mixing (FWM) among short optical pulses in a semiconductor optical amplifier (SOA) by the finite-difference beam propagation method (FD-BPM). We ...

A viral image shared on TikTok is gaining attention for claiming to reveal whether you're more of a deep thinker or a problem ...

Researchers from the National University of Singapore (NUS) have developed a new class of lanthanide-doped nanomaterials that ...

EKINOPS, a leading supplier of optical transport and enterprise-trusted connectivity solutions, announces the completion of ...

EKINOPS (Euronext Paris - FR0011466069 – EKI), a leading supplier of optical transport and enterprise-trusted connectivity ...

Survivors on Arrakis need a Holtzman Amplifier. It's an ancient tech that offers key advantages. The quest begins at ...

According to the Austrian hi-fi maker, the amplifier "masterfully bridges the worlds of analogue and streaming." ...

This slim, upright-orientated NAD D 3020 V2 amp is a unique, left-field design compared to most amps around. It's faithful to ...

I had the opportunity to check out this impressive audiophile amplifier, and now my old one feels completely outmoded.

Rolling Stone's editors test, review, and round up the best bookshelf speakers to buy in 2025, including powered and passive standmount speakers.

Keysight Technologies, NTT and its NTT Innovative Devices subsidiary achieved a speed record in the sub-THz spectrum range ...