Some problems on coupling of GaAs heterojuuction laser into multimode optical fibers are discussed, and coupling efficiency has been calculated for optical fibers with microlens.
A CO_2 laser was used to prepare end-faces of optical fibers. The prepared end-face has good optical quality. It is imperfection-free and its flatness is within 1~2 interference fringes.
ccording to Maxwell equation,we discuss the solution to the field of the radiation of light in optical fibers waveguide and obtain the transmitting feature of the radiation of light.
Semitransparent materials are widely used in industry, such as the ceramic parts of aircraft and automobile engine, the ceramic layer for insulating protection of turbine engine, the space optical windows, the fibre for insulating protection, the manufacture of optical fibre and components, and the ignition of semitransparent plastic, etc.
Anti-thrombin DNA aptamers were immobilized on silica microspheres, placed inside microwells on the distal tip on an imaging optical fiber, coupled to a modified epifluorescence microscope through its proximal tip.
These glasses can be used both for preparing an optical fiber core in photochromic glass fiber products of different types with an enhanced resolution and as a recording medium for random-access memory in optoelectronics.