摘要:
Radiations of different input light-wave conductors which are provided with tapering parts and are coupled at the center of an end face of a GRIN-rod lens are introduced by this lens into an output light-wave conductor. During the radiation conduction, the radiation emanating at the area of the tapering parts is also taken into account.
摘要:
In order to locate faults in an optical transmission system, the optical waveguide in the forward transmission path of a repeater is coupled by a beam splitter to an optical waveguide loop at the output of an amplifier. The dividing ratio of the beam splitter is based on the sensitivity of the amplifier in the return transmission path of the repeater. In the return direction the optical waveguide loop is connectable instead of the optical waveguide of the return transmission path.
摘要:
An apparatus and method for coupling and decoupling of optical radiation, in particular for laser light in optical fiber waveguides. The optical fiber waveguides are positioned in V-grooves and brought to a beam splitter. The beam splitter is adjusted by independent carriage guides and rotary guides, in order to separate a part of the radiation, which is representatively predetermined and required for control purposes.
摘要:
To avoid production-technical and optical problems when connecting optical waveguides to conductor paths leading to the edge of the IC, the connection point is removed from the edge into the lateral face of the optical IC. In that region an optical conductor which extends in the interior of the IC and is connected to the waveguide embedded in the surface by overcoupling, is fed out from the IC.
摘要:
Identical coupling conditions are achieved in an integrated optical component by pairs of branch tracks which successively intersect into a central track. Low attenuation values are achieved with angles of incidence of 1.5 degrees.
摘要:
The invention relates to an optical star coupler comprising cascaded three-ports, a three-port being formed by branching branch circuits into a center channel, a tapered region being provided at the branch point. The star coupler can be of a compact structure and preferably has a short length.The branch angle between the branching side circuits and the center channel is greater than/equal to 2.5.degree. and the tapered region is reduced.
摘要:
The ends of tapered optical waveguides are focused onto one another by means of a graded index rod lens. The tapered tips are connected to the end faces of the lens. The coupling conditions are improved by taking into account the cladding modes emerging from the tapered portions.