Umgaqo wokulungisa we-Tunable semiconductor laser (Tunable laser)

Umgaqo wokulungisaIleza ye-semiconductor elungisekayo(Ileza eguqulekayo)

I-laser ye-semiconductor enokuthungwa luhlobo lwe-laser enokutshintsha rhoqo ubude be-wavelength ye-laser kuluhlu oluthile. I-laser ye-semiconductor enokuthungwa isebenzisa ukulungiswa kobushushu, ukulungiswa kombane kunye nokulungiswa koomatshini ukulungisa ubude be-cavity, i-grating reflection spectrum, isigaba kunye nezinye izinto eziguquguqukayo ukuze kufezekiswe ukulungiswa kwe-wavelength. Olu hlobo lwe-laser luneendlela ezahlukeneyo zokusetyenziswa kunxibelelwano lwe-optical, i-spectroscopy, i-sensing, unyango kunye nezinye iinkalo. Umfanekiso 1 ubonisa ukwakheka okusisiseko kwe-ai-laser ehlengahlengiswayo, kuquka iyunithi yokwandisa ukukhanya, umngxuma we-FP owenziwe zizibuko zangaphambili nangasemva, kunye neyunithi yesihluzi sokukhetha imo ye-optical. Okokugqibela, ngokulungelelanisa ubude bomngxuma wokubonakalisa, isihluzi semo ye-optical sinokufikelela kwisiphumo sokukhetha ubude be-wavelength.

UMZOBO 1

Indlela yokulungisa kunye nemvelaphi yayo

Umgaqo wokulungisa izinto onokuzilungisaiileyiza ze-semiconductorIxhomekeke kakhulu ekutshintsheni iiparameter zomzimba ze-laser resonator ukuze kufezekiswe utshintsho oluqhubekayo okanye olucacileyo kwi-output laser wavelength. Ezi parameter ziquka, kodwa azikhawulelwanga, i-refractive index, ubude be-cavity, kunye nokukhetha imo. Ezi zilandelayo zichaza iindlela ezahlukeneyo zokulungisa kunye nemigaqo yazo:

1. Ukulungiswa kwenaliti yomthwali

Ukulungiswa kwe-carrier injection kukutshintsha i-refractive index yezinto ngokutshintsha i-current efakwe kwindawo esebenzayo ye-semiconductor laser, ukuze kufezekiswe ukulungiswa kwe-wavelength. Xa i-current isanda, uxinzelelo lwe-carrier kwindawo esebenzayo luyanda, nto leyo ebangela utshintsho kwi-refractive index, nto leyo echaphazela i-laser wavelength.

2. Ukulungiswa kobushushu Ukulungiswa kobushushu kukutshintsha isalathisi sokukhanyela kunye nobude bomngxuma wezinto ngokutshintsha ubushushu bokusebenza kwelaser, ukuze kufezekiswe ukulungiswa kobude bomda. Utshintsho kubushushu luchaphazela isalathisi sokukhanyela kunye nobukhulu bomzimba bezinto.

3. Ukulungiswa kwemishini Ukulungiswa kwemishini kukufezekisa ukulungiswa kwewavelength ngokutshintsha indawo okanye i-engile yezinto zangaphandle ze-optical ze-laser. Iindlela eziqhelekileyo zokulungiswa kwemishini ziquka ukutshintsha i-engile ye-diffraction grating kunye nokuhambisa indawo yesipili.

4 Ukulungiswa kwe-electro-optical Ukulungiswa kwe-electro-optical kufezekiswa ngokusebenzisa intsimi yombane kwizinto ze-semiconductor ukutshintsha i-refractive index yezinto, ngaloo ndlela kufezekiswa ukulungiswa kwe-wavelength. Le ndlela isetyenziswa rhoqo kwiiimodulators ze-electro-optical (I-EOM) kunye nee-laser ezilungisiweyo nge-electro-optically.

Ngamafutshane, umgaqo wokulungisa we-tunable semiconductor laser usebenza kakhulu ekulungiseni ubude be-wavelength ngokutshintsha iiparameter zomzimba ze-resonator. Ezi parameter ziquka i-refractive index, ubude be-cavity, kunye nokukhetha imo. Iindlela ezithile zokulungisa ziquka ukulungiswa kwe-carrier injection, ukulungiswa kwe-thermal, ukulungiswa kwe-mechanical kunye nokulungiswa kwe-electro-optical. Indlela nganye inendlela yayo ethile yomzimba kunye nokufunyanwa kwezibalo, kwaye ukukhethwa kwendlela efanelekileyo yokulungisa kufuneka kuqwalaselwe ngokweemfuno ezithile zesicelo, ezinje ngoluhlu lokulungisa, isantya sokulungisa, isisombululo kunye nozinzo.