Nhazi ụzọ anya anya nke eriri eriri eriri dị warara-line obosara

Nhazi ụzọ anya nke eriri polarizedlaser-line obosara

1. Nchịkọta

1018 nm polarized eriri warara-linewidth laser. Ogologo oge na-arụ ọrụ bụ 1018 nm, ike mmepụta laser bụ 104 W, obosara dị iche iche nke 3 dB na 20 dB bụ ~ 21 GHz na ~ 72 GHz n'otu n'otu, njedebe nkwụsị nke polarization bụ> 17.5 dB, na ìhè ọkụ dị elu (2 x M - 1.62) na 2 2 GHz.usoro laserna mkpọda arụmọrụ nke 79% (~ 1.63).

2. Nkọwa ụzọ anya

Na apolarized eriri warara-linewidth laser, The linearly polarized fiber laser oscillator mejuputara nke ụzọ polarization-na-ejigide fiber gratings na 1.5-mita ogologo 10/125 μm ytterbium-doped okpukpu abụọ nke polarization na-ejigide eriri dị ka ihe na-enweta ego. Ọnụ ọgụgụ absorption nke eriri anya a na 976 nm bụ 5 dB / m. A na-agbapụta oscillator laser site na 976nm wavelength-kpọchirisemiconductor laserna ike kacha nke 27 W site na-ejigide polarity (1 + 1) × 1 ihe nchikota beam. Ngosipụta echiche dị elu nwere ngosipụta nke ihe karịrị 99%, yana bandwidth ntụgharị uche 3 dB bụ ihe dịka 0.22 nm. Ngosipụta dị ala nke grating bụ 40%, yana bandwidth ntụgharị uche 3 dB bụ ihe dịka 0.216 nm. Ogologo ntụgharị ntụgharị etiti etiti nke grating abụọ dị na 1018 nm. Iji dozie ike mmepụta nke laser resonator na ASE suppression ratio, a na-eme ka ngosipụta dị ala nke grating ka ọ bụrụ 40%. A na-ejikọta eriri ọdụ nke grating dị elu na-erite uru, ebe eriri ọdụ nke obere ntụgharị uche na-atụgharị 90 ° ma jikọta ya na eriri ọdụ nke nzacha mkpuchi. N'ihi ya, ọnụ ọgụgụ kasị elu nke nlegharị anya nke axis ngwa ngwa nke grating dị elu na-adaba na nke na-egosi nwayọọ nwayọọ na-atụgharị uche nke grating dị ala. N'ụzọ dị otú a, ọ bụ naanị otu polarịịd laser nwere ike imegharị n'ime oghere na-agbapụta. A na-enyocha ọkụ mgbapụta nke fọdụrụ n'ime eriri anya site na nzacha ihe eji eme onwe ya nke etinyere n'ime oghere resonant, a na-agbakwa pigtail mmepụta ahụ site na 8 Celsius iji gbochie nzaghachi ihu njedebe na ọsụsọ parasitic.

3. Ihe ọmụma ndabere

Usoro ọgbọ nke eriri eriri eriri eriri linearly: N'ihi nrụgide birefringence, eriri na-ejigide eriri na-eme ka ube nwere axes polarization abụọ nke orthogonal, nke a maara dị ka axis ngwa ngwa na axis ngwa ngwa. N'ozuzu, ebe ọ bụ na ntugharị refractive nke axis dị nwayọọ dị ukwuu karịa nke axis ngwa ngwa, grating e dere na eriri na-echekwa polarization nwere ogologo ogologo ụzọ abụọ dị iche iche. Ọghe resonant nke eriri laser linearly polarized na-emekarị grating abụọ na-ejigide polarization. Ogologo ebili mmiri nke grating dị ala na nke dị elu na-atụgharị na axis ngwa ngwa na axis dị nwayọọ kwekọrọ n'otu n'otu. Mgbe bandwit echiche nke polarization-na-ejigide grating dị warara nke ọma, enwere ike ikewapụta ụdịdị mgbasa ozi na axis ngwa ngwa na ntụzịaka axis na-adịghị ngwa ngwa, ma ogologo ogologo ma wavelengths nwere ike ịma jijiji n'ime oghere resonant. Dị ka ụkpụrụ oscillation dual-wavelength nke polarization-na-edobe grating, na nnwale ahụ, enwere ike ịnakwere usoro ịgbado ọkụ yiri ya iji nweta ya. N'oge ịgbado ọkụ, a na-ahazi axes na-ejigide polarization nke grating abụọ ahụ. N'ụzọ dị otú a, ọnụ ụzọ mbufe abụọ nke grating dị elu na-adabere na nke ntanye nke ntanye dị ala, ya mere enwere ike ịmepụta mmepụta laser abụọ-wavelength.

N'ime sistemụ na-ejigide polarization laser n'ezie, skew linear bụ ihe dị mkpa maka ịlele njirimara mmepụta nke lasers polarized linearly. N'ozuzu, oge nke grating dị elu dị elu karịa nke obere ihe ngosi. Iji nweta laser nke nwere ọnụ ahịa PER dị elu, ọ bụ naanị otu ọnụ ọgụgụ kacha elu kwesịrị ịma jijiji. Mgbe axis ngwa ngwa nke obere ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ na ọ na-eme ka ọ bụrụ na ọ na-eme ka ọ dị elu. grating. N'ụzọ dị otú a, otu ọnụ ọgụgụ kasị elu nnyefe nwere ike ịma jijiji. N'otu aka ahụ, mgbe axis nke obere ihe na-eme ka ọ bụrụ ihe na-eme ka ọ bụrụ na ọ na-eme ka ọ bụrụ na ọ na-eme ka ọ bụrụ na ọ na-eme ka ọ bụrụ na ọ na-eme ka ọ dị elu. N'ụzọ dị otú a, otu ọnụ ọgụgụ kasị elu nnyefe nwekwara ike ịma jijiji. Ụzọ abụọ a dị n'elu nwere ike nweta mmepụta laser linearly polarized. Dị ka otu-wavelength linearly polarized laser oscillation ụkpụrụ nke polarization-na-edobe grating, na nnwale, na orthogonal splicing usoro nwere ike nakweere iji nweta ya. Mgbe splicing Angle nke polarization-ịnọgide axes nke elu reflection grating na ala echiche grating bụ 90 °, nnyefe ọnụ ọgụgụ kasị elu na ngwa ngwa axis direction nke elu reflection grating kwekọrọ na nnyefe elu na ngwa ngwa axis direction nke ala echiche grating, na otú mmepụta nke otu-wavelength linearly nwere ike ghọtara fiber.