Nheyo yekugadzirisa yeTunable semiconductor laser (Tunable laser)

Pfungwa yekugadzirisaLaser ye semiconductor inogadziriswa(Laser inogadziriswa)

Laser inonzi Tunable semiconductor imhando yelaser inogona kuramba ichichinja urefu hwemafungu emagetsi anobuda muraundi yakati. Laser inonzi Tunable semiconductor inoshandisa thermal tuning, electrical tuning uye mechanical tuning kugadzirisa urefu hwecavity, grating reflection spectrum, phase nezvimwe zvinhu kuti ikwanise kugadzirisa wavelength. Rudzi urwu rwelaser rune mashandisirwo akasiyana-siyana mu optical communication, spectroscopy, sensing, medical nedzimwe nzvimbo. Mufananidzo 1 unoratidza kuumbwa kwechinhu ichi.laser inogadziriswa, kusanganisira light gain unit, FP cavity inoumbwa nemagirazi ekumberi neekumashure, uye optical mode selection filter unit. Chekupedzisira, nekugadzirisa kureba kwe reflection cavity, optical mode filter inogona kusvika pa wavelength selection output.

Mufananidzo 1

Nzira yekugadzirisa uye kubviswa kwayo

Nheyo yekugadzirisa yekugadzirisalaser dze semiconductorZvinonyanya kutsamira pakuchinja maparamita emuviri elaser resonator kuti pave nekuchinja kunoenderera mberi kana kwakasarudzika muwavelength yelaser inobuda. Maparamita aya anosanganisira, asi haasi kungogumira pa, refractive index, urefu hwe cavity, uye sarudzo yemode. Zvinotevera zvinotsanangura nzira dzakawanda dzakajairika dzekugadzirisa uye misimboti yadzo:

1. Kugadzirisa jekiseni remuchina wekutakura majekiseni

Kugadziriswa kwekuisa majekiseni emuchina wekutakura (carrier injection tuning) kunoreva kuchinja refractive index yezvinhu nekushandura current inopinzwa munzvimbo inoshanda ye semiconductor laser, kuitira kuti pave nekugadzirisa wavelength. Kana current ikawedzera, huwandu hwecarrier munzvimbo inoshanda hunowedzera, zvichikonzera shanduko mu refractive index, izvo zvinozokanganisa wavelength ye laser.

2. Kugadzirisa kupisa Kugadzirisa kupisa kunoreva kushandura indekisi ye refractive uye urefu hwegomba rechinhu nekuchinja tembiricha yekushanda kwelaser, kuitira kuti pave nekugadzirisa wavelength. Kuchinja kwetembiricha kunokanganisa indekisi ye refractive uye saizi chaiyo yechinhu chacho.

3. Kugadzirisa michina Kugadzirisa michina kunoitwa nekuchinja nzvimbo kana Angle yezvinhu zvekunze zve laser. Nzira dzakajairika dzekugadzirisa michina dzinosanganisira kushandura Angle ye diffraction grating uye kufambisa nzvimbo yegirazi.

4 Kugadzirisa Electro-optical Kugadzirisa Electro-optical kunowanikwa nekushandisa simba remagetsi kune semiconductor material kuti ichinje refractive index yezvinhu, nokudaro zvichiita kuti pave nekugadzirisa wavelength. Nzira iyi inowanzoshandiswa mumamodulator emagetsi-optical (EOM) uye malaser akagadzirwa nemagetsi.

Muchidimbu, musimboti wekugadzirisa we laser inogadziriswa semiconductor laser inonyanya kuita kuti pave nekugadziriswa kwewavelength nekuchinja ma parameter emuviri e resonator. Ma parameter aya anosanganisira refractive index, cavity length, uye modhi selection. Nzira dzakatarwa dzekugadzirisa dzinosanganisira carrier injection tuning, thermal tuning, mechanical tuning uye electro-optical tuning. Nzira yega yega ine maitiro ayo chaiwo emuviri uye mathematical derivation, uye kusarudzwa kwenzira yakakodzera yekugadzirisa kunofanirwa kutariswa zvichienderana nezvinodiwa zvekushandisa, zvakaita se tuning range, tuning speed, resolution uye stability.