Nhanganyaya kune vertical cavity surface emitting semiconductor laser (VCSEL)

Nhanganyaya kune vertical cavity surface emittingsemiconductor laser(VCSEL)
Vertical yekunze mhango yepamusoro-emitting lasers yakagadziridzwa pakati-1990s kuti ikunde dambudziko rakakosha iro ratambudza kuvandudzwa kwechinyakare semiconductor lasers: magadzirirwo epamusoro-simba laser kubuda nehupamhi hwedanda mune yakakosha transverse mode.
Vertical yekunze mhango pamusoro-emitting lasers (Vecsels), inozivikanwawo sesemiconductor disc lasers(SDL), inhengo itsva yemhuri ye laser. Inogona kugadzira emission wavelength nekushandura kuumbwa kwezvinhu uye ukobvu hweiyo quantum zvakanaka mune semiconductor kuwana yepakati, uye yakasanganiswa ne intracavity frequency kaviri inogona kuvhara yakafara wavelength kubva ku ultraviolet kusvika kure infrared, kuwana yakakwira simba rekubuda uku uchichengeta yakaderera divergence. Angle denderedzwa symmetric laser beam. Iyo laser resonator inoumbwa neyepasi DBR chimiro chekuwana chip uye chekunze chinobuda chekubatanidza girazi. Ichi chakasarudzika chekunze resonator chimiro chinobvumira optical element kuti iiswe mugomba rekuita senge frequency kaviri, frequency musiyano, uye mode-locking, zvichiita kuti VECSEL ive yakanaka.laser sourcezvekushandisa kubva kubiophotonics, spectroscopy,Laser mushonga, uye laser projection.
Iyo resonator yeVC-surface emitting semiconductor laser is perpendicular kune ndege iyo nzvimbo inoshanda iripo, uye chiedza chayo chinobuda chiri perpendicular kune ndege yenharaunda inoshanda, sezvinoratidzwa mumufananidzo.VCSEL ine zvikomborero zvakasiyana, zvakadai sediki. saizi, yakakwira frequency, yakanaka danda mhando, hombe ganda repamusoro kukuvara chikumbaridzo, uye iri nyore kugadzira maitiro. Inoratidza kuita kwakanakisa mumashandisirwo e laser kuratidza, optical kutaurirana uye optical wachi. Nekudaro, maVCsels haakwanise kuwana epamusoro-simba lasers pamusoro peiyo watt level, saka haigone kushandiswa muminda ine yakakwirira simba zvinodiwa.

Iyo laser resonator yeVCSEL inoumbwa neyakagoverwa Bragg reflector (DBR) inoumbwa neakawanda-layer epitaxial chimiro che semiconductor zvinhu pamativi ese ekumusoro uye ezasi edunhu rinoshanda, iro rakasiyana zvakanyanya kubva kune.laserresonator inoumbwa ne cleavage ndege muEEL. Kutungamira kweVCSEL optical resonator ndeye perpendicular kune chip pamusoro, iyo laser inobuda inoenderanawo neiyo chip pamusoro, uye kutaridzika kwemativi ese eDBR kwakakwira zvakanyanya kupfuura iyo yeEEL mhinduro ndege.
Kureba kwelaser resonator yeVCSEL kazhinji ishoma mamicrons, ayo ari madiki zvakanyanya pane ayo emamilimita resonator yeEEL, uye iyo nzira imwe chete inowanikwa neiyo optical field oscillation mugomba yakaderera. Kunyangwe iyo yakakosha transverse modhi inobuda inogona kuwanikwa, simba rekubuda rinogona kungosvika akati wandei mamilliwatts. Iyo muchinjika-chikamu chimiro cheVCSEL inoburitsa laser beam yakatenderera, uye iyo divergence Angle idiki zvakanyanya pane iyo yekumucheto-emitting laser beam. Kuti uwane yakakwira simba rekubuda kweVCSEL, zvinodikanwa kuti uwedzere dunhu rinopenya kuti ripe yakawanda kuwana, uye kuwedzera kwenzvimbo inopenya kuchaita kuti iyo inobuda laser ive yakawanda-modhi yekubuda. Panguva imwecheteyo, zvakaoma kuwana yunifomu yazvino jekiseni munzvimbo yakakura inopenya, uye jekiseni risingaenzaniswi razvino richawedzera kupisa kupisa kuunganidza. simba rekubuda rakaderera kana kubudiswa kuri imwe chete mode.Saka, maVCsels akawanda anowanzobatanidzwa mumagetsi ekubuda.