Kusankha kwa gwero labwino la laser: m'mphepete emission semiconductor laser Gawo Loyamba

Kusankha kwabwinogwero la laser: laser emission semiconductor laser
1. Mawu Oyamba
Semiconductor lasertchipisi anawagawa m'mphepete emitting laser tchipisi (EEL) ndi ofukula patsekeke pamwamba emitting tchipisi laser (VCSEL) malinga ndi njira zosiyanasiyana zopangira resonators, ndi kusiyana structural awo akuwonetsedwa Chithunzi 1. Poyerekeza ndi ofukula patsekeke pamwamba emitting laser, m'mphepete. Kukula kwaukadaulo wa laser semiconductor ndikokhwima kwambiri, kokhala ndi mawonekedwe otalikirapo, okweraelectro-opticalkutembenuka dzuwa, mphamvu yaikulu ndi ubwino zina, oyenera kwambiri laser processing, kulankhula kuwala ndi madera ena. Pakalipano, ma lasers a semiconductor lasers ndi gawo lofunika kwambiri pamakampani opanga ma optoelectronics, ndipo ntchito zawo zakhudza mafakitale, matelefoni, sayansi, ogula, asilikali ndi ndege. Ndi chitukuko ndi kupita patsogolo kwa ukadaulo, mphamvu, kudalirika komanso kusinthika kwamphamvu kwa ma lasers otulutsa semiconductor m'mphepete zakhala zikuyenda bwino, ndipo ziyembekezo zawo zogwiritsira ntchito zikuchulukirachulukira.
Chotsatira, ndikutsogolerani kuti muyamikirenso chithumwa chapadera cha kutulutsa mbalilaser semiconductor.

Chithunzi 1 (kumanzere) mbali yotulutsa semiconductor laser ndi (kumanja) ofukula pamwamba pamitsempha yotulutsa mawonekedwe a laser

2. Mfundo yogwirira ntchito ya edge emission semiconductorlaser
Kapangidwe ka m'mphepete-emitting semiconductor laser akhoza kugawidwa mu magawo atatu: semiconductor yogwira dera, mpope gwero ndi kuwala resonator. Mosiyana ndi ma resonator a ma lasers of vertical cavity-emitting lasers (omwe amapangidwa ndi magalasi apamwamba ndi pansi a Bragg), ma resonator mu zida za laser semiconductor laser makamaka amapangidwa ndi mafilimu owoneka mbali zonse. Mawonekedwe a chipangizo cha EEL ndi mawonekedwe a resonator akuwonetsedwa mu Chithunzi 2. Photon mu chipangizo cha laser cha semiconductor cha m'mphepete mwake chimakulitsidwa ndi kusankha kwa mode mu resonator, ndipo laser imapangidwa motsatira njira yofanana ndi gawo lapansi. Zida za laser za Edge-emitting semiconductor zimakhala ndi mafunde osiyanasiyana ogwiritsira ntchito ndipo ndizoyenera kugwiritsa ntchito zambiri zothandiza, motero zimakhala imodzi mwazinthu zabwino kwambiri za laser.

Mawonekedwe owunikira machitidwe a ma lasers a semiconductor lasers amakhalanso ogwirizana ndi ma semiconductor lasers, kuphatikizapo: (1) laser lasing wavelength; (2) Ith yapano ya Ith, ndiye kuti, pakalipano pomwe laser diode imayamba kupanga laser oscillation; (3) Iop yamakono yogwira ntchito, ndiye kuti, kuyendetsa galimoto pamene diode ya laser ikufika pa mphamvu yotulutsa mphamvu, chizindikiro ichi chimagwiritsidwa ntchito pakupanga ndi kusinthasintha kwa dera la laser drive; (4) Kuchita bwino kwa malo otsetsereka; (5) Mulingo wosiyana θ⊥; (6) Njira yopingasa yopingasa θ∥; (7) Yang'anirani Im yamakono, ndiko kuti, kukula kwamakono kwa chipangizo cha laser cha semiconductor pa mphamvu yotulutsa mphamvu.

3. Kupita patsogolo kwa kafukufuku wa ma GaAs ndi a GaN based edge emitting semiconductor lasers
Laser ya semiconductor yotengera zinthu za GaAs semiconductor ndi imodzi mwaukadaulo wokhwima kwambiri wa laser semiconductor. Pakali pano, GAAS-based near-infrared band (760-1060 nm) emitting semiconductor lasers yakhala ikugwiritsidwa ntchito kwambiri pamalonda. Monga m'badwo wachitatu wa semiconductor material pambuyo pa Si ndi GaAs, GaN yakhala ikukhudzidwa kwambiri mu kafukufuku wa sayansi ndi mafakitale chifukwa cha mphamvu zake zakuthupi ndi zamankhwala. Popanga zida za optoelectronic zochokera ku GAN komanso khama la ochita kafukufuku, ma diode otulutsa kuwala opangidwa ndi GAN ndi ma laser otulutsa m'mphepete akhala akutukuka.