On-line optical fiber grating preparing system
A technology for preparing systems and fiber gratings, applied in cladding fibers, optical waveguides, optical mechanical equipment, etc., can solve the problems of laser beam uniformity, laser pulse stability, low coherence of laser beam aiming point stability, and poor quality of grating arrays. High reflectivity, affecting grating consistency, etc., to achieve high reflectivity consistency, good grating spectral shape, good uniformity and stability
Active Publication Date: 2015-05-20
武汉烽理光电技术有限公司
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The invention relates to an on-line optical fiber grating preparing system, which comprises a wire drawing tower and a grating inscribing device, wherein the wire drawing tower comprises a wire drawing furnace and a prefabricated bar clamping feeding device arranged above the wire drawing furnace, a naked optical fiber diameter gauge is arranged under a furnace opening of the wire drawing furnace, the grating inscribing device is arranged under the naked optical fiber diameter gauge, an optical fiber coating curing device is arranged under the grating inscribing device along the vertical downward direction of the naked optical fiber, and a wire drawing take-up mechanism is arranged under the optical fiber coating curing device. The on-line optical fiber grating preparing system is characterized in that the grating inscribing device comprises a phase mask plate and a 193nm excimer laser, wherein the phase mask plate is arranged in a way of being next to the center of the naked optical fiber, the output end of the 193nm excimer laser is alternately provided with a diaphragm and a lens, the 193nm excimer laser outputs single-pulse laser beams, and the single-pulse laser beams are illuminated onto the phase mask plate through diaphragm shaping and lens focusing. The on-line optical fiber grating preparing system has the advantages that the arrangement is reasonable, the performance is stable, the manufacturing efficiency is high, in addition, the precision of the manufactured grating is high, the grating spectral form is good, and the consistency is high.
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Property | Measurement | Unit |
Pulse width | <= 4.0 | ns |
tensile | MPa | |
Particle size | Pa | |
strength | 10 |
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