Chiyambi cha Edge Emitting Laser (EEL)

Chiyambi cha Edge Emitting Laser (EEL)
Kuti mupeze zotulutsa zamphamvu kwambiri za semiconductor laser, ukadaulo wapano ndikugwiritsa ntchito mawonekedwe am'mphepete. The resonator ya m'mphepete-emitting semiconductor laser wapangidwa ndi chilengedwe dissociation pamwamba pa semiconductor kristalo, ndipo mtengo mtengo limatulutsa kuchokera kumapeto kwa laser. Malo otulutsa ndi ozungulira, mtengo wamtengowo ndi wocheperako, ndipo mawonekedwe a mtengowo amayenera kusinthidwa ndi dongosolo lopanga matabwa.
Chithunzi chotsatirachi chikuwonetsa mawonekedwe a laser semiconductor laser. Mphepete mwa kuwala kwa EEL ndi yofanana ndi pamwamba pa semiconductor chip ndipo imatulutsa laser m'mphepete mwa semiconductor chip, yomwe imatha kuzindikira kutulutsa kwa laser ndi mphamvu yayikulu, kuthamanga kwambiri komanso phokoso lochepa. Komabe, mtengo wa laser wopangidwa ndi EEL nthawi zambiri umakhala ndi gawo la mtanda wa asymmetric ndi kusiyana kwakukulu kwa angular, ndipo kugwirizanitsa bwino ndi fiber kapena zinthu zina zowoneka ndizochepa.

Kuwonjezeka kwa mphamvu ya EEL yotulutsa mphamvu kumakhala kochepa chifukwa cha kutentha kwa zinyalala m'dera logwira ntchito komanso kuwonongeka kwa kuwala pa semiconductor pamwamba. Ndi kuonjezera dera waveguide kuchepetsa zinyalala kutentha kudzikundikira m'dera yogwira kusintha kutentha kutayika, kuwonjezera kuwala linanena bungwe m'dera kuchepetsa kuwala mphamvu kachulukidwe a mtengo kupewa kuwonongeka kuwala, linanena bungwe mphamvu ya mpaka mazana angapo milliwatts akhoza. kukwaniritsidwa mu single transverse mode waveguide structure.
Kwa 100mm waveguide, laser imodzi yotulutsa m'mphepete imatha kukwaniritsa ma watts ambiri amphamvu, koma panthawiyi ma waveguide ali ndimitundu yambiri pa ndege ya chip, ndipo chiwopsezo cha mtengo wotulutsa chimafikanso 100: 1, kumafuna njira yovuta yopangira matabwa.
Poganizira kuti palibe kutulukira kwatsopano muukadaulo wazinthu komanso ukadaulo wakukula kwa epitaxial, njira yayikulu yopititsira patsogolo mphamvu ya chipangizo cha semiconductor laser chip ndikuwonjezera m'lifupi m'lifupi mwa dera lowala la chip. Komabe, kuwonjezera Mzere m'lifupi kwambiri n'zosavuta kubala yopingasa mkulu-kuti mode oscillation ndi filamentlike oscillation, amene kwambiri kuchepetsa yunifolomu linanena bungwe kuwala, ndi linanena bungwe mphamvu sizikuwonjezera proportional ndi Mzere m'lifupi, kotero linanena bungwe mphamvu ya Chip chimodzi chimakhala chochepa kwambiri. Kuti apititse patsogolo kwambiri mphamvu zotulutsa, ukadaulo wa array umabwera. Ukadaulo umaphatikiza mayunitsi angapo a laser pagawo lomwelo, kotero kuti gawo lililonse lotulutsa kuwala limakhala ngati gulu limodzi laling'ono munjira yoyenda pang'onopang'ono, bola ngati ukadaulo wodzipatula wa kuwala umagwiritsidwa ntchito kulekanitsa gawo lililonse lotulutsa kuwala m'magulu osiyanasiyana. , kuti asasokoneze wina ndi mzake, kupanga makina otsekemera otsekemera, mukhoza kuwonjezera mphamvu ya chip yonse powonjezera chiwerengero cha mayunitsi opangira kuwala. Chip cha laser cha semiconductor ndi semiconductor laser array (LDA) chip, chomwe chimadziwikanso kuti semiconductor laser bar.