Umgaqo-nkqubo wokuTuna we-Tunable semiconductor laser (iTunable laser)

Umgaqo-nkqubo wohlengahlengiso weI-laser ye-semiconductor esebenzayo(I-laser esetyenziswayo)

I-laser ye-semiconductor ye-tunable luhlobo lwe-laser olunokuthi ngokuqhubekayo lutshintshe ubude be-laser yemveliso kuluhlu oluthile. I-laser ye-semiconductor ye-tunable ithatha ukulungiswa kwe-thermal, ukulungiswa kombane kunye nokulungiswa koomatshini ukulungelelanisa ubude be-cavity, i-grating reflection spectrum, isigaba kunye nezinye izinto eziguquguqukayo ukufezekisa ukulungiswa kwe-wavelength. Olu hlobo lwe-laser lunoluhlu olubanzi lwezicelo kunxibelelwano lwe-optical, i-spectroscopy, imvakalelo, unyango kunye nezinye iinkalo. Umzobo 1 ubonisa ukuqulunqwa okusisiseko kwe-ai-laser enokuqhutywa, kubandakanywa neyunithi yokuzuza ukukhanya, i-FP cavity ehlanganiswe nezibuko zangaphambili nasemva, kunye neyunithi yokucoca i-optical mode. Okokugqibela, ngokulungelelanisa ubude bombhobho obonakalisayo, isihluzi semowudi ye-optical inokufikelela kwisiphumo sokukhetha ubude be-wavelength.

I-FIG.1

Indlela yokuguqula kunye nokuphuma kwayo

Umgaqo-nkqubo wokulungelelanisa we-tunebleiisemiconductor lasersubukhulu becala kuxhomekeke ekutshintsheni iiparamitha zomzimba ze-laser resonator ukufezekisa utshintsho oluqhubekayo okanye olucacileyo kwimveliso ye-laser wavelength. Ezi parameters zibandakanya, kodwa azikhawulelwanga, isalathiso sokuphinda siqhawuke, ubude becango, kunye nokukhetha indlela. Ezi zilandelayo zichaza iindlela ezininzi eziqhelekileyo zokulungelelanisa kunye nemigaqo yazo:

1. Ulungelelwaniso lwenaliti yomthwali

Ukulungiswa kwenaliti ye-Carrier kukutshintsha isalathiso se-refractive semathiriyeli ngokutshintsha yangoku efakwe kwindawo esebenzayo ye-laser ye-semiconductor, ukuze kuphunyezwe ukulungelelaniswa kwe-wavelength. Xa ukwanda kwangoku, ukuxinwa komthwali kwindawo esebenzayo kuyanda, okubangela ukuba utshintsho kwi-index refractive index, echaphazela i-laser wavelength.

2. Ukulungiswa kwe-Thermal Ukulungiswa kwe-Thermal kukutshintsha isalathisi se-refractive kunye nobude be-cavity yezinto ngokutshintsha ubushushu bokusebenza be-laser, ukuze kuphunyezwe ukulungiswa kwe-wavelength. Utshintsho kwiqondo lokushisa luchaphazela isalathisi se-refractive kunye nobukhulu bomzimba wezinto eziphathekayo.

3. Ukulungiswa koomatshini Ukulungiswa komatshini kukufikelela kwi-wavelength tuning ngokutshintsha indawo okanye i-Angle yezinto zangaphandle zangaphandle ze-laser. Iindlela eziqhelekileyo zokulungisa oomatshini ziquka ukutshintsha i-Angle ye-diffraction grating kunye nokuhambisa indawo yesibuko.

4 Ukulungiswa kwe-Electro-optical Tuning I-Electro-optical tuning iphunyezwa ngokusebenzisa indawo yombane kwisixhobo se-semiconductor ukuguqula isalathiso se-refractive sezinto eziphathekayo, ngaloo ndlela ufezekise ukuthungela ubude be-wavelength. Le ndlela isetyenziswa ngokuqhelekileyo kwiiimodyuli ze-electro-optical (EOM) kunye ne-electro-optically tuned lasers.

Isishwankathelo, umgaqo wokulungelelaniswa kwe-laser ye-semiconductor enokutyibilika ubukhulu becala uqonda ukulungelelaniswa kwe-wavelength ngokuguqula iiparamitha ezibonakalayo zeresonator. Ezi parameters ziquka isalathiso se-refractive, ubude bomgodi, kunye nokukhetha imo. Iindlela ezikhethekileyo zokulungisa zibandakanya ukutshintshwa kwenaliti ye-carrier, ukulungiswa kwe-thermal, ukulungiswa koomatshini kunye nokulungiswa kwe-electro-optical. Indlela nganye inomatshini wayo okhethekileyo womzimba kunye nokuvela kwezibalo, kwaye ukhetho lwendlela yokulungelelanisa efanelekileyo kufuneka ithathelwe ingqalelo ngokweemfuno ezithile zesicelo, ezifana noluhlu lokulungelelanisa, isantya sokuguqula, isisombululo kunye nokuzinza.