Upgrade of optical amplifier site to a digital optical...

Upgradeable optical add/drop multiplexer

USB communication transceiver using optical link

Use of amplified spontaneous emission from a semiconductor...

Use of polarization for differentiation of information

Use of variable ratio couplers for network protection and...

User-constrained optical route flooding system and method

Using active and passive optical components for an optical...

Using superimposed ASK label in an all-optical label...

UWB signal generator using optical FSK modulator

Variable bandwidth transimpedance amplifier with one-wire...

Variable clamp equalization method and apparatus

Variable optical attenuator integration into transmitter...

Variable rate DPSK system architecture

Variable-density optical cross-connect architectures and...

Variable-rate communication system with optimal filtering

VCSEL with integrated optical filter

Vehicular communication system

Verification of path integrity in optical switch network

Verification of path integrity in optical switch network