Abstract: An optical fiber cable assembly has opto-electronics components as integral part of the assembly.

Abstract: An arrangement for monitoring the emission wavelength of a laser source emitting a main radiation beam to be launched into an optical waveguide includes a wavelength selective photosensitive element adapted to be exposed to the radiation beam to generate an output signal indicative of the wavelength of the radiation. The arrangement comprises an optical system defining a beam propagation path for the radiation beam towards the waveguide. The wavelength selective photosensitive element is arranged at a marginal position of the beam, to collect at least a corresponding marginal portion of the radiation beam, whereby the signal indicative of the wavelength of the radiation is generated from said marginal portion of the radiation beam in the optical system.

Abstract: An arrangement for monitoring the emission wavelength of a laser source (10) emitting a main radiation beam to be launched into an optical waveguide (F) includes a wavelength selective photosensitive element (20, 22) adapted to be exposed to the radiation beam to generate an output signal (20a) indicative of the wavelength of the radiation. The arrangement comprises an optical system (12, 14, 16) defining a beam propagation path for the radiation beam towards the waveguide (F). The wavelength selective photosensitive element (20, 22) is arranged at a marginal position of the beam, to collect at least a corresponding marginal portion of the radiation beam, whereby the signal (20a) indicative of the wavelength of the radiation is generated from said marginal portion of the radiation beam in the optical system (12, 14, 16).

Abstract: A laser system comprises a laser (500) whose output beam is delivered to a workpiece (504) by an optical fiber (502). A transducer (506) detects the power of light propagating in the cladding layer of fiber (502) at a position near its input end. The transducer (506) also strips out the light travelling in the cladding layer. The output of transducer (506) is divided by the output of a transducer (507), which detects the power of the output beam of laser (500), to produce a signal indicative of misalignment between the laser beam and the core of fiber (502) at the input face. A transducer (505) comprises a second fiber (508) optically coupled with the cladding layer of fiber (502). Light emitted from the ends of fiber (508) is detected by a pair of detectors (509, 510), whose outputs are indicated on displays (512, 514). Display (512) provides information on the integrity of transmissions of the laser beam through fiber (502).