Electro-optic modulators are analog or digital devices that use an electric field to alter the characteristics (e.g., band gap and index of refraction) of a material through which light is traveling, changing the characteristics of the light itself. Most electro-optic modulators use changes to the index of refraction in a lithium niobate crystal for electrical potential. The change in the index of refraction is then used to modify the light passing through the material. Some electro-optic modulators vary the amplitude or frequency of the light beam. Others shift the light beam’s phase. Electro-optic modulators can be free standing or rack mounted. Optional features include attached fiber pigtails and maintained polarization of the incoming signal.
Electro-optic modulators use many different types of connectors. Biconic connectors have precision-tapered ends for low insertion loss. D4 and FC connectors are durable, zirconia-ceramic ferrules with a keyed body for repeatability. FC connectors are used primarily with single-mode fibers, but are also used in telephone systems, instruments, and high-speed communication links. Designed for use in FDDI networks, FDDI connectors are 2.5 mm ferrules that include a fixed shroud. ESCON connectors have the same measurements, but use an adjustable shroud. LC connectors are high-precision, zirconia-ceramic ferrules that feature an RJ-45 push-pull housing and latching. MT-RJ connectors hold two fibers with a ferrule that is smaller than the one used in MTP connectors, devices that are threaded and well-suited for high-density applications. ST connectors are easy-to-assemble devices that feature a bayonet mounting system. They are used with both single-mode and multi-mode fibers in communications applications. SMA connectors include a low-cost, multi-mode coupling that is suitable for military applications. Loop back connectors are used to test transceiver systems with electro-optic modulators.
More >>Products & Services Related to Electro-optic Modulators
Other Topics You Might Be Interested In
Optics today is responsible for many revolutions in science and technology. This
has been brought about primarily by the invention of the laser in 1960 and subsequent
development in realizing the...
(Read More)
10.1 INTRODUCTION
In Chapter 9 we discussed erbium-doped fiber amplifiers, which are the most important
optical amplifiers. Since the EDFAs work on the principle of population inversion...
(Read More)
11.1 INTRODUCTION
In a normal optical fiber, the refractive indices of the core and of the cladding do not
change along the length of the fiber. In fact, any deviation from this leads to...
(Read More)
Engineering Web: Electrooptic Modulators
Pages: 1 - 3 of 184
|
low voltage electro-optic light modulators Electro-optic modulators Low Voltage Electro-Optic Light Modulators Type: EM 200A, EM 200K & EM 200L See Electro Optical Components, Inc. Information |
|
|
Thorlabs.com - Electro-Optic Modulators Electro-Optic Modulators Overview Lithium Niobate Electro-Optic Modulators See ThorLabs, Inc. Information |
|
|
Lumera: Electro-Optic Polymer Modulators Electro-Optic Polymer Modulators Millimeter Wave Comunication Electro-Optic Polymer Modulators Specifications See Lumera Corporation Information |
Of Interest
