IheIhe nrụpụta Mach-Zehnder(MZ Modulator) bụ ngwaọrụ dị mkpa maka ịhazi akara ngosi anya dabere na ụkpụrụ nnyonye anya. Ụkpụrụ ọrụ ya bụ dịka ndị a: Na alaka dị ka Y na njedebe ntinye, a na-ekewa ìhè ntinye ahụ n'ime ebili mmiri ọkụ abụọ ma banye na ọwa anya abụọ yiri ibe ha maka nnyefe n'otu n'otu. E ji ihe electro-optic mee ọwa anya ahụ. Site n'iji mmetụta fotoelectric ya mee ihe, mgbe akara ngosi eletriki etinyere n'èzí gbanwere, enwere ike ịgbanwe ihe ngosi refractive nke ihe nke ya, nke na-ebute ọdịiche dị iche iche n'etiti ọkụ abụọ ahụ na-eru alaka dị ka Y na njedebe mmepụta. Mgbe akara ngosi anya dị na ọwa anya abụọ ahụ rutere alaka dị ka Y na njedebe mmepụta, njikọta ga-eme. N'ihi igbu oge dị iche iche nke akara ngosi anya abụọ ahụ, nnyonye anya na-eme n'etiti ha, na-agbanwe ozi dị iche nke akara ngosi anya abụọ ahụ na-ebu ka ọ bụrụ ozi ike nke akara mmepụta. Ya mere, ọrụ nke ịgbanwe akara eletrik na ndị na-ebu ngwa anya nwere ike imezu site na ijikwa paramita dị iche iche nke voltaji ibu nke modulator March-Zehnder.
Paramita ndị bụ isi nkeMZ Modulator
Ihe ndị bụ isi nke MZ Modulator na-emetụta arụmọrụ nke modulator ozugbo n'ọtụtụ ọnọdụ ngwa. N'ime ha, ihe ndị dị mkpa dị na paramita anya na paramita eletriki bụ ndị a.
Paramita anya:
(1) Ojii bandwit (bandwit 3db): Oke ugboro ole mgbe oke nzaghachi ugboro ole belatara site na 3db site na uru kachasị, ebe nkeji ahụ bụ Ghz. Ojii bandwit na-egosipụta oke ugboro ole nke mgbama ahụ mgbe modulator na-arụ ọrụ nke ọma ma bụrụ paramita maka ịtụ ikike ibu ozi nke onye na-ebu ngwa anya naihe na-eme ka electro-optic modulator dị.
(2) Oke mwepu: Oke nke ike ọkụ kachasị elu nke ihe modulator electro-optic na ike ọkụ kacha nta, yana nkeji nke dB. Oke mwepu bụ paramita maka ịtụle ikike mgba ọkụ eletrik nke ihe modulator.
(3) Mfu nloghachi: Oke nke ike ìhè a na-egosipụta na njedebe ntinye nkeihe nhazigaa na ike ọkụ ntinye, yana nkeji nke dB. Mfu nloghachi bụ paramita nke na-egosipụta ike ihe merenụ nke a tụgharịrị azụ na isi iyi mgbaàmà.
(4) Mfu nke ntinye: Oke nke ike anya mmepụta na ike anya ntinye nke modulator mgbe o ruru ike mmepụta kachasị elu ya, ebe nkeji ahụ bụ dB. Mfu nke ntinye bụ ihe ngosi nke na-atụ mfu ike anya nke ntinye nke ụzọ anya kpatara.
(5) Ike anya ntinye kachasị elu: N'oge ojiji nkịtị, ike anya ntinye MZM Modulator kwesịrị ịdị obere karịa uru a iji gbochie mmebi ngwaọrụ, ebe nkeji ahụ bụ mW.
(6) Omimi mgbanwe: Ọ na-ezo aka na oke nke oke mgbaama mgbanwe na oke nke onye na-ebu ihe, nke a na-egosipụtakarị dị ka pasentị.
Paramita eletriki:
Voltaji ọkara-ebili: Ọ na-ezo aka na ọdịiche voltaji achọrọ maka voltaji akwọ ụgbọala iji gbanwee modulator site na ọnọdụ gbanyụọ gaa na ọnọdụ ọkụ. Ike anya mmepụta nke MZM Modulator na-agbanwe mgbe niile na mgbanwe nke voltaji bias. Mgbe mmepụta modulator na-emepụta ọdịiche nke usoro ogo 180, ọdịiche dị na voltaji bias kwekọrọ na isi kacha nta dị nso na isi kachasị bụ voltaji ọkara-ebili, yana nkeji nke V. A na-ekpebi paramita a site na ihe dị ka ihe, nhazi na usoro, ọ bụkwa paramita dị n'ime nkeMZM Modulator.
(2) Oke voltaji DC bias: N'oge ojiji nkịtị, voltaji ntinye bias nke MZM kwesịrị ịdị obere karịa uru a iji gbochie mmebi ngwaọrụ. Ngalaba ahụ bụ V. A na-eji voltaji DC bias iji chịkwaa ọnọdụ bias nke modulator iji mezuo ihe achọrọ maka modulation dị iche iche.
(3) Oke uru akara RF: N'oge ojiji nkịtị, akara eletriki RF nke MZM kwesịrị ịdị obere karịa uru a iji gbochie mmebi ngwaọrụ. Nkeji ahụ bụ V. Mgbaàmà ugboro redio bụ mgbaama eletriki nke a ga-agbanwe na ihe na-ebu ngwa anya.
Oge ozi: Juun-16-2025