ʻO ka fiber Optical o ka mīkini ʻokiʻoki fiber laser kahi ʻano o ka laser band-infrared me ka laser fiber e like me ka mea hana (gain medium).Hiki ke hoʻokaʻawale ʻia i loko o ka honua laha ʻole doped fiber laser, optical fiber nonlinear effect laser, single crystal fiber laser, fiber arc lasers, etc.Ma waena o lākou, ʻoi loa ka nui o nā lasers fiber doped earth, e like me ka doped erbium fiber amplifier (EDFA) i hoʻohana nui ʻia i nā ʻōnaehana kamaʻilio fiber optical.Hoʻohana nui ʻia nā laser fiber kiʻekiʻe i ka pūʻali koa (photoelectric confrontation, laser detection, laser communication, etc.), laser processing (laser marking, laser robot, laser micromachining, etc.), medical and other fields.
Hana ʻia ka fiber laser e SiO2 ma ke ʻano he matrix material o ke aniani paʻa fiber, ʻo ia ke kumu o ke alakaʻi kukui e hoʻohana i ka nui o ka noʻonoʻo ʻana o ka paipu, ʻo ia hoʻi, i ka wā e hoʻokuʻu ʻia ai ke kukui mai ka ʻano optical density o ka refractive kiʻekiʻe. kuhikuhi i kekahi o ka huina hoailona li'ili'i me ka huina nui ma mua o ka huina ko'iko'i.Ke hoʻokuʻu ʻia ke kukui mai ke kikowaena optical density (ʻo ia hoʻi, ʻo ka helu refractive o ke kukui i loko o ke kikowaena he nui) a hiki i ke kikowaena o ka mea ʻokoʻa ʻokoʻa (ʻo ia hoʻi, he liʻiliʻi ka helu refractive o ke kukui ma ka waena), ʻike hou ʻia ka mālamalama a pau i ke ʻano kumu.ʻAʻohe kukui e komo i loko o ka mea hoʻopaʻapaʻa optical mea liʻiliʻi liʻiliʻi refractive index. 125μm) a me kahi uhi resin i hoʻoikaika ʻia i waho.Hiki ke hoʻokaʻawale ʻia ke ʻano hoʻolaha fiber optic i ka fiber mode-mode (SM) a me ka fiber multi-mode (MM).ʻO ke anawaena o ka fiber kumu hoʻokahi, ʻoi aku ka liʻiliʻi o ke anawaena kumu (4 ~ 12μm) hiki ke hoʻolaha wale i hoʻokahi kumu hoʻohālike o ka māmā a liʻiliʻi ke ʻano hoʻopuehu.ʻO ke anawaena fiber core multimode ka mānoanoa (ʻoi aku ka nui ma mua o 50μm) hiki ke hoʻolaha i nā ʻano kukui like ʻole a ʻoi aku ka nui o ka dispersion intermodal.E like me ka refractive distribution rate, hiki ke hoʻokaʻawale ʻia ka fiber optic i ka fiber step index (SI) a me ka index index (GI) fiber.
E lawe i ka honua laha ole doped fiber lasers no ka la'ana, doped me ka rare earth particles as a gain medium, doped fibers is fixed between two mirrors forming a resonant cavity.ʻO ke kukui pahū mai ka M1 i loko o ka fiber a laila hana i ka laser mai M2.Ke hele ka ipukukui kukui i loko o ka fiber, hoʻopili ʻia ia e nā ion honua laha i ka fiber a hauʻoli nā electrons i kahi kiʻekiʻe kiʻekiʻe o ka excitation e hoʻokō i ka hoʻohuli ʻana o ka heluna kanaka o nā mea.Hoʻololi ʻia nā ʻāpana inversed mai ke kiʻekiʻe o ka ikehu kiʻekiʻe i ka ʻāina ma ke ʻano o ka radiation e hana i ka laser.
Ka manawa hoʻouna: Jan-08-2019