Tuning musimboti weTunable semiconductor laser (Tunable laser)

Tuning musimboti weTunable semiconductor laser(Tunable laser)

Tunable semiconductor laser imhando yelaser iyo inogona kuramba ichichinja wavelength yelaser kubuda mune imwe nhanho. Tunable semiconductor laser inotora tembiricha yekupisa, kugadzirisa kwemagetsi uye mechanic tuning kugadzirisa kureba kwegomba, grating inoratidzira spectrum, chikamu uye zvimwe zvinosiyana kuti uwane wavelength tuning. Rudzi urwu rwelaser rune huwandu hwakasiyana hwekushandisa mu optical communication, spectroscopy, sensing, medical and other fields. Mufananidzo 1 unoratidza kuumbwa kweiyo atunable laser, kusanganisira mwenje wekuwana unit, iyo FP cavity inoumbwa nemberi uye kumashure magirazi, uye optical mode yekusarudza sefa unit. Chekupedzisira, nekugadzirisa kureba kweanoratidzira mhango, iyo optical mode sefa inogona kusvika kune wavelength sarudzo yekubuda.

FIG.1

Tuning nzira uye mabviro ayo

Iyo tuning misimboti ye tunablesemiconductor laserszvakanyanya zvinoenderana nekushandura ma parameter eiyo laser resonator kuti iwane inoenderera kana discrete shanduko mune inobuda laser wavelength. Aya ma paramita anosanganisira, asi haana kugumira kune, refractive index, cavity urefu, uye modhi sarudzo. Izvi zvinotevera zvakati wandei zvakajairika nzira dzekugadzirisa uye nheyo dzadzo:

1. Carrier jekiseni tuning

Carrier jekiseni tuning ndeye kushandura refractive index yechinhu nekushandura ikozvino jekiseni munzvimbo inoshanda ye semiconductor laser, kuitira kuti uwane wavelength tuning. Kana iyo ikozvino inowedzera, iyo inotakura yekutakura munharaunda inoshanda inowedzera, zvichikonzera shanduko yerefractive index, iyo inokanganisa iyo laser wavelength.

2. Thermal tuning Thermal tuning ndeye kushandura refractive index uye cavity urefu hwezvinhu nekushandura tembiricha yekushanda yelaser, kuitira kuti uwane wavelength tuning. Kuchinja kwekushisa kunobata iyo refractive index uye saizi yemuviri yezvinhu.

3. Mechanical tuning Mechanical tuning ndeyekuzadzisa wavelength tuning nekushandura chinzvimbo kana Angle yekunze optical elements yelaser. Nzira dzakajairwa dzema mechanical tuning dzinosanganisira kushandura Angle ye diffraction grating uye kufambisa chinzvimbo chegirazi.

4 Electro-optical tuning Electro-optical tuning inowanikwa kuburikidza nekushandisa nzvimbo yemagetsi kune semiconductor zvinhu kushandura refractive index yezvinyorwa, nekudaro kuwana wavelength tuning. Iyi nzira inonyanya kushandiswa mukatielectro-optical modulators (EOM) uye electro-optically tuned lasers.

Muchidimbu, iyo tuning musimboti we tunable semiconductor laser inonyanya kuona wavelength tuning nekushandura ma paramita emuviri we resonator. Aya ma paramita anosanganisira refractive index, cavity urefu, uye modhi sarudzo. Yakananga tuning nzira dzinosanganisira carrier jekiseni tuning, thermal tuning, mechanical tuning uye electro-optical tuning. Imwe neimwe nzira ine yayo chaiyo mashandiro emuviri uye kutorwa kwemasvomhu, uye kusarudzwa kweiyo nzira yekumisikidza yakakodzera kunofanirwa kutariswa zvinoenderana nezvinodiwa zvekushandisa, senge tuning renji, tuning kumhanya, kugadzirisa uye kugadzikana.