Laser DFB nke eriri otu ugboro niile

Otu ugboro eriri niileLaser DFB

Nhazi ụzọ anya

Ogologo ogologo nke laser eriri DFB nkịtị bụ 1550.16nm, oke njụ n'akụkụ-na-akụkụ karịrị 40dB. Ebe ọ bụ na obosara ahịrị 20dB nke aEriri laser DFBbụ 69.8kHz, a pụrụ ịmata na obosara ahịrị 3dB ya bụ 3.49kHz.

Nkọwa ụzọ anya

1. Sistemụ laser otu ugboro

Ụzọ anya ahụ nwere ihe ndị na-anaghị arụ ọrụ nke ọma dịka 976 nm nke a na-akụnye n'ime ya.laser, π -phase shift grating, eriri erbium-doped, na wavelength division multiplexer. Ụkpụrụ ọrụ bụ na ọkụ mgbapụta nke laser pumped 976 nm mepụtara na-apụta site na nchekwa mgbapụta ma kewaa ya n'ụzọ abụọ. 20% nke ọkụ mgbapụta na-agafe na njedebe 980nm nke multiplexer wavelength 1550/980nm ma banye na grating shift π. Ejikọtara laser isi mmalite mkpụrụ mmepụta na njedebe 1550 nm nke 1550/980nm WDM mgbe ọ gafere na ihe na-ekewa eriri. 80% nke ọkụ mgbapụta na-ejikọta site na multiplexer nkewa wavelength 1550/980 nm n'ime eriri gain erbium-doped 2 m maka mgbanwe ike, na-enweta mmụba ike laser.

N'ikpeazụ, a na-enweta mmepụta laser site na ISO. A na-ejikọ laser mmepụta ahụ na spectrometer (OSA) na mita ike optical (PM) iji nyochaa ụdị mmepụta laser na ike laser. Ejiri eriri fiber optic fusion splicer jikọọ akụkụ niile nke ụzọ anya nke sistemụ ahụ dum, na-enweta nhazi sistemụ eriri optical zuru oke nke nwere ogologo oghere dị ihe dị ka mita 10. Sistemụ nha obosara ahịrị ahụ mejupụtara ngwaọrụ ndị a: njikọ eriri optical abụọ nke 3 dB, ahịrị nkwụsị eriri optical SM-28e nke 50 km, 40 MHzihe modulator acouste-optic, yana aihe nchọpụta fotona ihe nyocha spectrum.

2. Paramita ngwaọrụ:

EDF: Ogologo ike ọrụ dị na band C, oghere ọnụọgụgụ bụ 0.23, oke mmịpụta bụ 1532 nm, uru nkịtị bụ 33 dB/m, na mfu ịgbado ọkụ bụ 0.2 dB.

Ihe nchebe mgbapụta: Ọ nwere ike inye nchebe mgbapụta na band 800 ruo 2000 nm, yana ogologo ebili mmiri etiti nke 976 nm na ikike njikwa ike nke 1 W.

Njikọ eriri anya: Ọ na-eme ka ike mgbaàmà anya kesaa ma ọ bụ njikọta ya. Njikọ eriri anya 1*2, nke nwere oke nkewa nke 20:80%, ogologo ebili mmiri na-arụ ọrụ nke 976nm, na otu ụdị.

Multiplexer nkewa Wavelength: Ọ na-eme ka njikọta na nkewa nke akara anya abụọ nke ogologo ebili mmiri dị iche iche, 980/1550 nm WDM. Eriri dị na njedebe mgbapụta bụ Hi1060, eriri dị na njedebe nkịtị na njedebe mgbaàmà bụ SMF-28e.

Ihe na-egbochi eriri anya: Na-egbochi isi iyi ọkụ ka ìhè na-egosipụta azụ ghara imetụta isi iyi ọkụ ahụ nke ọma, yana ogologo ebili mmiri na-arụ ọrụ nke 1550nm, ihe na-egbochi bipolar, yana ike anya kachasị nke 1W.