Wucewa! Mafi girman iko na duniya 3 μm tsakiyar tsakiyar firyen Fiber Laser

Wucewa! Mafi girman iko na duniya 3 μm tsakiyar infraredFemtosecond fiber laer

Fiber LaserDon cimma nasarar laserar Laser, mataki na farko shine zaɓi kayan fiber da suka dace. A cikin talata na kusa, matrix gilashin dunƙule shine mafi yawan kayan fito na fiber na gama gari tare da ƙarancin watsa muni da matuƙar kwanciyar hankali. Koyaya, saboda babban ƙarfin kuzari mai ƙarfi (1150 cm-1), fiber na quber ba za a iya amfani dashi don watsa na ƙarshe-etrarrared laser. Don samun ƙarancin asarar asarar iskar-laser, muna buƙatar sake zaɓar wasu kayan ƙananan fiber tare da ƙananan murfin phonon, kamar matrix na gilashin gilashi ko matrix na gilashin gilashi. Fiber na sulfuhe yana da mafi ƙasƙanci makamashi (kimanin 350 cm-1), saboda haka yana da matsalar cewa ba za a iya ƙara yawan haɗuwa ba azaman fakiti don samar da tsakiyar fater. Kodayake, subsarfin gilashin filaye yana da ɗan ƙaramin ƙarfi na phonon (550 cm-1) fiye da gangaren sulfde, yana iya samun ƙarancin isar da urfored tare da 4 μm. Mafi mahimmanci, sahun gilashin gilashin masu ƙarfi na iya cimma taro mai yawa na ƙasa, wanda zai iya samar da ribar Laseride na tsakiyar -3 + ya sami damar cimma taro na tsakiya na zuwa 10 mol. Saboda haka, matrix na gilashin gilashi shine kayan Sifer mafi dacewa na firam na tsakiyar Infrared.

Kwanan nan, ƙungiyar Farfesa Ruan Shuangchen da Farfesa Guo Chunyu a Jami'ar Shenzhh ta kirkiro da babban ikoPulse fiber LaserAn hada da 2.8ber na Fiber Oscillator na zamani: Yanayanci-Single Er: Filin FIBLE Preamfier da manyan-fiber babban er: Filin firam na Zblan ER:
Dangane da ka'idar kai da kuma amplifiation ka'idar Inflated quse sarrafawa ta hanyar sarrafa kayan kwalliya tare da matsakaiciyar iko na 8.12W da fs na uku na 148 fs. Rikodin kasa da kasa na mafi matsakaita mafi matsakaita da wannan rukunin bincike ya ci gaba.

Hoto na 1 Tsarin zane na ER: SBLAN FIBER Laserer dangane da MOP tsarin
Tsarin naFemtosecond LaserAn nuna tsarin a cikin Hoto 1 A cikin babban amplifier, babban yatsan yanayin filin er: ZBLAN FIRS tare da tsawon 4 mol.% Da kuma m diamita na 30 μm (na = 0.12). Babban maɗaukaki mai girma yana sa ribar fiber yake da ƙarancin ƙarfi kuma zai iya yin tsayayya da babbar ƙarfin ƙwarewa da kuma fitowar mafi girman ƙarfin ƙarfin bugun jini. Dukansu iyakar fiber aka watse zuwa ga jirgin saman Alf3.