Passive Components

Micro-Electro Mechanical Systems (MEMS) was first used heavily in the sensor industry, its success led to many tiny and well controlled devices. In the optical domain, MEMS components are widely used for telecommunication industry and optical sensor technology. There are four main device application areas in the telecom industry. Amplifiers Switches and optical cross connectors (OXC) Filters Variable optical attenuators (VOA) Although many optical MEMS devices are driven by the telecom industry, other research and industry areas have also taken advantage of MEMS devices. Optical spectroscopy is one of this fields. When high spectroscopic resolution is required, optical spectrometers are...

The function of an optical circulator is similar to that of a microwave circulator. It is a three or more ports multiport device. Lightwave is transmitted from one port to the next sequential port with minimum loss, but is blocked from from one port to the previous port.   Optical circulators were first used in telecom systems. However, with the ready availability of low-cost and high-performance circulators, they are also used in sensing and imaging fields. Optical Circulator Applications Add-Drop Multiplexing Fiber Sensors Bidirectional Pumping Bidirectional Signal Transmission Systems Coupling In-Line Chromatic Dispersion Compensation Devices Optical circulators were first used...