Optisystem
- 1. GI?I THI?U CHUNG V? PH?N M?M OPTISYSTEM
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H?C VI?N C?NG NGH? B?U CH?NH VI?N TH?NG
KHOA VI?N TH?NG 1
B? M?N TH?NG TIN QUANG
B?I GI?NG TH?C H?NH
M?N M?NG TRUY?N T?I QUANG
H? ??O T?O : ??I H?C
- 2. C¨´ng v?i s? b¨´ng n? v? nhu c?u th?ng tin, c¨¢c h? th?ng th?ng tin quang ng¨¤y c¨¤ng tr? n¨ºn ph?c t?p. ??
ph?n tich, thi?t k? c¨¢c h? th?ng n¨¤y b?t bu?c ph?i s? d?ng c¨¢c c?ng c? m? ph?ng
OptiSystem l¨¤ ph?n m?m m? ph?ng h? th?ng th?ng tin quang. Ph?n m?m n¨¤y c¨® kh? n?ng thi?t k?, ?o ki?m tra
v¨¤ th?c hi?n t?i ?u h¨®a r?t nhi?u lo?i tuy?n th?ng tin quang, d?a tr¨ºn kh? n?ng m? h¨¬nh h¨®a c¨¢c h? th?ng
th?ng tin quang trong th?c t?. B¨ºn c?nh ?¨®, ph?n m?m n¨¤y c?ng c¨® th? d? d¨¤ng m? r?ng do ng??i s? d?ng c¨®
th? ??a th¨ºm c¨¢c ph?n t? t? ??nh ngh?a v¨¤o.
Ph?n m?m c¨® giao di?n th?n thi?n, kh? n?ng hi?n th? tr?c quan.
1. C?C ?NG D?NG C?A OPTISYSTEM
Optisystem cho ph¨¦p thi?t k? t? ??ng h?u h?t c¨¢c lo?i tuy?n th?ng tin quang ? l?p v?t l?, t? h? th?ng ???ng
tr?c cho ??n c¨¢c m?ng LAN, MAN quang. C¨¢c ?ng d?ng c? th? bao g?m:
- Thi?t k? h? th?ng th?ng tin quang t? m?c ph?n t? ??n m?c h? th?ng ? l?p v?t l?
- Thi?t k? m?ng TDM/WDM v¨¤ CATV
- Thi?t k? m?ng FTTx d?a tr¨ºn m?ng quang th? ??ng (PON)
- Thi?t k? h? th?ng ROF (radio over fiber)
- Thi?t k? b? thu, b? ph¨¢t, b? khu?ch ??i quang
- Thi?t k? s? ?? t¨¢n s?c
- ?¨¢nh gi¨¢ BER v¨¤ penalty c?a h? th?ng v?i c¨¢c m? h¨¬nh b? thu kh¨¢c nhau
- T¨ªnh to¨¢n BER v¨¤ qu? c?ng su?t tuy?n c?a c¨¢c h? th?ng c¨® s?ng d?ng khu?ch ??i quang.
- ¡..
2. C?C ??C ?I?M CH?NH C?A OPTISYSTEM
2.1 Th? vi?n c¨¢c ph?n t? (Component Library)
Optisystem c¨® m?t th? vi?n c¨¢c ph?n t? phong ph¨² v?i h¨¤ng tr?m ph?n t? ???c m? h¨¬nh h¨®a ?? c¨® ?¨¢p
?ng gi?ng nh? c¨¢c thi?t b? trong th?c t?. C? th? bao g?m:
- Th? vi?n ngu?n quang
- Th? vi?n c¨¢c b? thu quang
- Th? vi?n s?i quang
- Th? vi?n c¨¢c b? khu?ch ??i (quang, ?i?n)
- Th? vi?n c¨¢c b? MUX, DEMUX
- Th? vi¨ºn c¨¢c b? l?c (quang, ?i?n)
- Th? vi?n c¨¢c ph?n t? FSO
- Th? vi?n c¨¢c ph?n t? truy nh?p
- Th? vi?n c¨¢c ph?n t? th? ??ng (quang, ?i?n)
- Th? vi?n c¨¢c ph?n t? x? l? t¨ªn hi?u (quang, ?i?n)
- Th? vi?n c¨¢c ph?n t? m?ng quang
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- 3. - Th? vi?n c¨¢c thi?t b? ?o quang, ?o ?i?n
Ngo¨¤i c¨¢c ph?n t? ?? ???c ??nh ngh?a s?n, Optisystem c¨°n c¨®:
- C¨¢c ph?n t? Measured components. V?i c¨¢c ph?n t? n¨¤y, Optisystem cho ph¨¦p nh?p c¨¢c tham s?
???c ?o t? c¨¢c thi?t b? th?c c?a c¨¢c nh¨¤ cung c?p kh¨¢c nhau.
- C¨¢c ph?n t? do ng??i s? d?ng t? ??nh ngh?a (User-defined Components)
2.2 Kh? n?ng k?t h?p v?i c¨¢c c?ng c? ph?n m?m kh¨¢c c?a Optiwave
Optisystem cho ph¨¦p ng??i d¨´ng s? d?ng k?t h?p v?i c¨¢c c?ng c? ph?n m?m kh¨¢c c?a Optiwave nh?
OptiAmplifier, OptiBPM, OptiGrating, WDM_Phasar v¨¤ OptiFiber ?? thi?t k? ? m?c ph?n t?.
2.3 C¨¢c c?ng c? hi?n th?
Optisystem c¨® ??y ?? c¨¢c thi?t b? ?o quang, ?o ?i?n. Cho ph¨¦p hi?n th? tham s?, d?ng, ch?t l??ng t¨ªn hi?u
t?i m?i ?i?m tr¨ºn h? th?ng.
Thi?t b? ?o quang:
- Ph?n t¨ªch ph? (Spectrum Analyzer)
- Thi?t b? ?o c?ng su?t (Optical Power Meter)
- Thi?t b? ?o mi?n th?i gian quang (Optical Time Domain Visualizer)
- Thi?t b? ph?n t¨ªch WDM (WDM Analyzer)
- Thi?t b? ph?n t¨ªch ph?n c?c (Polarization Analyzer)
- Thi?t b? ?o ph?n c?c (Polarization Meter)...
Thi?t b? ?o ?i?n:
- Oscilloscope
- Thi?t b? ph?n t¨ªch ph? RF (RF Spectrum Analyzer)
- Thi?t b? ph?n t¨ªch bi?u ?? h¨¬nh m?t (Eye Diagram Analyzer)
- Thi?t b? ph?n t¨ªch l?i bit (BER Analyzer)
- Thi?t b? ?o c?ng su?t (Electrical Power Meter)
- Thi?t b? ph?n t¨ªch s¨®ng mang ?i?n (Electrical Carrier Analyzer)...
2.4 M? ph?ng ph?n c?p v?i c¨¢c h? th?ng con (subsystem)
?? vi?c m? ph?ng ???c th?c hi?n m?t c¨¢ch linh ho?t v¨¤ hi?u qu?, Optisystem cung c?p m? h¨¬nh m? ph?ng
t?i c¨¢c m?c kh¨¢c nhau, bao g?m m?c h? th?ng, m?c h? th?ng con v¨¤ m?c ph?n t?.
2.5 Ng?n ng? Scipt m?nh
Ng??i s? d?ng c¨® th? nh?p c¨¢c bi?u di?n s? h?c c?a tham s? v¨¤ t?o ra c¨¢c tham s? to¨¤n c?c. C¨¢c tham s?
to¨¤n c?c n¨¤y s? ???c d¨´ng chung cho t?t c? c¨¢c ph?n t? v¨¤ h? th?ng con c?a h? th?ng nh? s? d?ng
chung ng?n ng? VB Script.
2.6 Thi?t k? nhi?u l?p (multiple layout)
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- 4. Trong m?t file d? ¨¢n, Optisystem cho ph¨¦p t?o ra nhi?u thi?t k?, nh? ?¨® ng??i s? d?ng c¨® th? t?o ra v¨¤
s?a ??i c¨¢c thi?t k? m?t c¨¢ch nhanh ch¨®ng v¨¤ hi?u qu?. M?i file d? ¨¢n thi?t k? c?a Optisystem c¨® th? ch?a
nhi?u phi¨ºn b?n thi?t k?. M?i phi¨ºn b?n ???c t¨ªnh to¨¢n v¨¤ thay ??i m?t c¨¢ch ??c l?p nh?ng k?t qu? t¨ªnh
to¨¢n c?a c¨¢c phi¨ºn b?n kh¨¢c nhau c¨® th? ???c k?t h?p l?i, cho ph¨¦p so s¨¢nh c¨¢c phi¨ºn b?n thi?t k? m?t
c¨¢ch d? d¨¤ng.
2.7 Trang b¨¢o c¨¢o (report page)
Trang b¨¢o c¨¢o c?a Optisystem cho ph¨¦p hi?n th? t?t c? ho?c m?t ph?n c¨¢c tham s? c?ng nh? c¨¢c k?t qu?
t¨ªnh to¨¢n ???c c?a thi?t k? t¨´y theo y¨ºu c?u c?a ng??i s? d?ng. C¨¢c b¨¢o c¨¢o t?o ra ???c t? ch?c d??i
d?ng text, d?ng b?ng tinh, ?? th? 2D v¨¤ 3D. C?ng c¨® th? k?t xu?t b¨¢o c¨¢o d??i d?ng file HTML ho?c d??i
d?ng c¨¢c file template ?? ???c ??nh d?ng tr??c
2.7 Qu¨¦t tham s? v¨¤ t?i ?u h¨®a (parameter sweeps and optimizations)
Qu¨¢ tr¨¬nh m? ph?ng c¨® th? th?c hi?n l?p l?i m?t c¨¢ch t? ??ng v?i c¨¢c gi¨¢ tr? kh¨¢c nhau c?a tham s? ?? ??a
ra c¨¢c ph??ng ¨¢n kh¨¢c nhau c?a thi?t k?. Ng??i s? d?ng c?ng c¨® th? s? d?ng ph?n t?i uu h¨®a c?a
Optisystem ?? thay ??i gi¨¢ tr? c?a m?t tham s? n¨¤o ?¨® ?? ??t ???c k?t qu? t?t nh?t, x?u nh?t ho?c m?t gi¨¢
m?c ti¨ºu n¨¤o ?¨® c?a thi?t k?
3. GIAO DI?N NG??I S? D?NG (GUI)
C¨¢c ph?n ch¨ªnh c?a GUI bao g?m (xem h¨¬nh 1) :
- Project layout: l¨¤ n?i m¨¤ ng??i s? d?ng th? hi?n thi?t k?
- Dockers, bao g?m:
o Th? vi?n c¨¢c ph?n t? (Component Library): ng??i s? d?ng truy nh?p v¨¤o ??y l?y c¨¢c ph?n t?
?? t?o ra thi?t k? h? th?ng
o Project Browser: s? d?ng project browser cho ph¨¦p truy nh?p ??n c¨¢c tham s? v¨¤ k?t qu? c?a
thi?t k? m?t c¨¢ch thu?n ti?n.
o Description: n?i s? d?ng c¨® th? ??a c¨¢c th?ng tin ?? m?t t? t¨®m t?t v? thi?t k?
- Menu bar (xem h¨¬nh 2): ch?a c¨¢c menu c¨® trong Optisystem
H¨¬nh 1. Giao di?n ng??i s? d?ng c?a Optisystem
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- 5. H¨¬nh 2. Menu bar c?a Optisystem
- Toolbars
Standard
Ch?a t?t c? c¨¢c n¨²t th?c hi?n c¨¢c ho?t ??ng th?ng th??ng c?a window nh?:
t?o file, m? file, l?u, in ?n, copy, .. v¨¤ ch?c n?ng t¨ªnh to¨¢n c?a h? th?ng.
Layout
Th?c hi?n c¨¢c ch?c n?ng nh? x¨®a, sao ch¨¦p layout trong d? ¨¢n. Thi?t l?p s?
l?n qu¨¦t tham s? v¨¤ t?i ?u h¨®a thi?t k?.
Docker
Th?c hi?n ch?c n?ng cho ph¨¦p ho?c lo?i b? docker trong main layout.
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- 6. Layout Tools
Th?c hi?n c¨¢c ch?c n?ng nh? di chuy?n, k?t n?i, thay ??i c¨¢c ph?n t?, v?
c¨¢c c?ng v¨¤o v¨¤ ra c?a ph?n t?.
Draw Objects
V? c¨¢c h¨¬nh ch? nh?t, h¨¬nh tr¨°n, ???ng th?ng, ??a th¨ºm text ho?c bitmap
v¨¤o layout.
Layout
Operations
Th?c hi?n ph¨®ng to, thu nh? thi?t k? ho?c c?a s? thi?t k?. Cho ph¨¦p ho?c
lo?i b? ch?c n?ng t? ??ng k?t n?i, ?i?u khi?n s? hi?n th? c?a layout.
Script
Ch?y, t?o ra, l?u gi? ho?c t?i c¨¢c file script
4. T?M T?T H??NG D?N S? D?NG M?T S? CH?C N?NG C? B?N C?A OPTISYSTEM
4.1 M? m?t d? ¨¢n c¨® s?n:
- V¨¤o File menu, l?a ch?n Open
- L?a ch?n ???ng d?n trong File name ?? l?y ???c file mong mu?n
4.2 T?o m?t d? ¨¢n m?i
- V¨¤o File menu, l?a ch?n New, c?a s? Project layout xu?t hi?n (h¨¬nh 3)
H¨¬nh 3. C?a s? Project layout
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- 7. - V¨¤o Component Library, d¨´ng chu?t k¨¦o ph?n t? c?n s? d?ng v¨¤ th? v¨¤o Main Layout (xem h¨¬nh 4)
H¨¬nh 4. ??t ph?n t? v¨¤o Main layout
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- 8. - Vi?c k?t n?i gi?a c¨¢c ph?n t? trong thi?t k? c¨® th? ???c th?c hi?n m?t c¨¢ch t? ??ng ho?c b?ng tay
nh? vi?c s? d?ng c¨¢c n¨²t ch?c n?ng trong Layout Operations (xem h¨¬nh 5, 6).
H¨¬nh 5 . K¨ªch ho?t k?t n?i t? ??ng
H¨¬nh 6. H?y b? ch? ?? k?t n?i t? ??ng
4.3 Thi?t l?p c¨¢c tham s? to¨¤n c?c (global parameters) c?a d? ¨¢n
Khi t?o m?t thi?t k? m?i tr¨ºn Optisystem, ph?i thi?t l?p c¨¢c tham s? to¨¤n c?c. C¨¢c tham s? n¨¤y s? li¨ºn
quan ??n t?c ??, ?? ch¨ªnh x¨¢c v¨¤ y¨ºu c?u v? b? nh? cho vi?c th?c hi?n m? ph?ng thi?t k?. C¨¢c tham s?
n¨¤y ???c g?i l¨¤ tham s? to¨¤n c?c v¨¬ n¨® ?nh h??ng ??n t?t c? c¨¢c th¨¤nh ph?n trong thi?t k? c¨® s? d?ng
c¨¢c tham s? n¨¤y. Trong Optisystem, c¨¢c tham s? n¨¤y bao g?m:
- T?c ?? bit (bit rate)
- Chi?u d¨¤i chu?i bit (Bit sequence length)
- S? m?u tr¨ºn m?t bit (Number of samples per bit).
C¨¢c tham s? n¨¤y ???c s? d?ng ?? t¨ªnh to¨¢n Time window (c?a s? th?i gian), Sample rate (t?c ?? l?y
m?u) v¨¤ Number of samples (s? l??ng m?u) nh? sau:
- Time window = Sequence length * 1/Bit rate
- Number of samples = Sequence length * Samples per bit
- Sample rate = Number of samples / Time window
Optisystem d¨´ng chung tham s? Time window cho t?t c? c¨¢c th¨¤nh ph?n trong thi?t k?, t?c l¨¤ t?t c? c¨¢c
th¨¤nh ph?n ??u c¨® Time window gi?ng nhau nh?ng c¨® th? c¨® Sample rates ho?c Number of samples l¨¤
kh¨¢c nhau.
?? thi?t l?p tham s? to¨¤n c?c c?a d? ¨¢n, th?c hi?n c¨¢c b??c sau
- K¨ªch ?¨²p chu?t v¨¤o c?a s? Project layout
- Ho?c L?a ch?n Layout > Parameters t? thanh c?ng c? Menu
H?p tho?i Layout parameters xu?t hi?n (xem h¨¬nh 7).
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- 9. H¨¬nh 7. H?p tho?i Layout parameters
4.4 Hi?n th? v¨¤ thay ??i tham s? c?a c¨¢c ph?n t? trong d? ¨¢n
- K¨ªch ?¨²p chu?t v¨¤o ph?n t? c?n thay ??i tham s?
H?p tho?i v? c¨¢c tham s? c?a ph?n t? xu?t hi?n
- Di chuy?n con tr? ??n c¨¢c gi¨¢ tr? tham s? c?n thay ??i
- Nh?p gi¨¢ tr? tham s? mong mu?n
L?u ?: C¨® 3 ch? ?? c?a tham s? l¨¤ Norman, Script v¨¤ Sweep:
- Ch? ?? Script ???c s? d?ng khi tham s? n¨¤y l¨¤ tham s? to¨¤n c?c, c¨® ?nh h??ng ??n t?t c? c¨¢c ph?n
t? kh¨¢c c?a h? th?ng.
- Ch? ?? Sweep ???c s? d?ng khi th?c hi?n qu¨¦t tham s?
H¨¬nh 8. H?p tho?i v? c¨¢c tham s? c?a Laser Measured
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- 10. 4.5 Ch?y m? ph?ng
- T? File menu, l?a ch?n Calculate. H?p tho?i Optisystem Calculations xu?t hi?n (h¨¬nh 9)
H¨¬nh 9. File menu
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- 11. - Trong h?p tho?i Optisystem Calculations (h¨¬nh 10), k¨ªch chu?t v¨¤o n¨²t Run
H¨¬nh 10. H?p tho?i Optisystem Calculations
4.6 Hi?n th? k?t qu? m? ph?ng
- K¨ªch ?¨²p chu?t v¨¤o c¨¢c ph?n t? hi?n th? trong thi?t k? ?? hi?n th? ?? th? v¨¤ c¨¢c k?t qu? m¨¤ qu¨¢ tr¨¬nh
m? ph?ng t?o ra.
H¨¬nh 11. K?t qu? hi?n th? tr¨ºn thi?t b? ph?n t¨ªch ph? (v¨ª d?)
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- 12. 4.7 Th?c hi?n qu¨¦t tham s? (Parameter Sweep)
Trong m?i b?n thi?t k? s? c¨® m?t s? c¨¢c tham s? nh?t ??nh c¨® th? ??a v¨¤o ch? ?? qu¨¦t (sweep mode).
Ng??i thi?t k? c¨® th? ??nh ngh?a s? l?n qu¨¦t ???c th?c hi?n tr¨ºn m?i tham s?. Gi¨¢ tr? c?a tham s? s? thay
??i qua m?i l?n qu¨¦t. Qu¨¢ tr¨¬nh n¨¤y s? cho c¨¢c k?t qu? thi?t k? kh¨¢c nhau t¨´y theo s? thay ??i gi¨¢ tr? c?a
tham s?.
?? th?c hi?n qu¨¦t tham s?, ti?n h¨¤nh c¨¢c b??c nh? sau:
a. Thi?t l?p s? l?n qu¨¦t:
- B??c 1: K¨ªch chu?t v¨¤o n¨²t Set Total Sweep Iterarions tr¨ºn Layout tool bar
H?p tho?i Total Parameter Sweep Iteration xu?t hi?n gi¨¢ tr? hi?n t?i (v¨ª d? nh? tr¨ºn h¨¬nh 12)
- B??c 2: Nh?p v¨¤o s? l?n qu¨¦t
- B??c 3: K¨ªch chu?t v¨¤o n¨²t OK
H¨¬nh 12. H?p tho?i Total Parameter Iteration
Ho?c:
- B??c 1: L?a ch?n Layout > Set Total Sweeps Iterations tr¨ºn Menu toolbar (xem h¨¬nh 13)
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- 13. H?p tho?i Total Parameter Sweep Iteration xu?t hi?n gi¨¢ tr? hi?n t?i (v¨ª d? nh? tr¨ºn h¨¬nh 12)
- B??c 2: Nh?p v¨¤o s? l?n qu¨¦t
- B??c 3: K¨ªch chu?t v¨¤o n¨²t OK
H¨¬nh 13. Truy nh?p qua Layout - Set Total Sweep Iterations
b. Thay ??i s? l?n qu¨¦t
Sau khi t¨ªnh to¨¢n, d? thay ??i s? l?n qu¨¦t hi?n th? tr¨ºn b?n thi?t k? (layout), th?c hi?n c¨¢c b??c sau:
- B??c 1: L?a ch?n Layout > Set Current Sweep Interation tr¨ºn Menu toolbar
H?p tho?i Set Current Sweep Iterarion xu?t hi¨ºn nh? tr¨ºn h¨¬nh 14
- B??c 2: Nh?p v¨¤o s? l?n qu¨¦t mu?n hi?n th? tr¨ºn b?n thi?t k?
- B??c 3: K¨ªch chu?t v¨¤o n¨²t OK
H¨¬nh 14 . H?p tho?i Current Sweep Iteration
S? d?ng n¨²t Previous Sweep Iterarion ho?c Next Sweep Iteration tr¨ºn Layout toolbar ?? chuy?n gi?a
c¨¢c l?n qu¨¦t.
Ho?c: L?a ch?n l?n qu¨¦t tr¨ºn Set Current Iteration drop-down box nh? tr¨ºn h¨¬nh 15 d??i ??y
H¨¬nh 15 . Set Current Iteration drop-down box
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- 14. c. Thay ??i gi¨¢ tr? tham s? qu¨¦t:
Sau khi l?a ch?n s? l?n qu¨¦t tham s?, ph?i th?c hi?n nh?p c¨¢c gi¨¢ tr? c?n qu¨¦t c?a tham s?. Tr??c khi
nh?p, tham s? c?n qu¨¦t ph?i ???c chuy?n sang ch? ?? Sweep Mode.
? L?a ch?n Sweep mode
?? chuy?n sang Sweep mode cho tham s? c?n qu¨¦t, th?c hi?n c¨¢c b??c sau:
o B??c 1: L?a ch?n Layout > Parameter Sweep tr¨ºn Menu toolbar.
H?p tho?i v? c¨¢c tham s? c?a ph?n t? xu?t hi?n nh? tr¨ºn h¨¬nh 17
o ? trong c?t Mode, l?a ch?n ch? ?? Sweep mode (xem h¨¬nh 16)
H¨¬nh 16. Sweep mode
H¨¬nh 17. Tham s? c?a ph?n t? - Tham s? ? ch? ?? Sweep mode
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- 15. o K¨ªch chu?t v¨¤o n¨²t Parameter Sweep trong c?t Value c?a tham s? c?n qu¨¦t (?? ? Sweep
Mode) (nh? minh h?a tr¨ºn h¨¬nh l¨¤ tham s? Power). H?p tho?i Parameter Sweeps xu?t hi?n
nh? tr¨ºn h¨¬nh 18 d??i ??y.
H¨¬nh 18. C¨¢c gi¨¢ tr? tham s? c?n qu¨¦t c?a ph?n t? tr¨ºn thi?t k?
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- 16. ? Nh?p gi¨¢ tr? tham s? qu¨¦t:
?? nh?p c¨¢c gi¨¢ tr? c?n qu¨¦t c?a tham s?, th?c hi?n c¨¢c b??c sau:
o B??c 1: L?a ch?n Layout > Parameter tr¨ºn Menu toolbar
o B??c 2: K¨ªch chu?t v¨¤o n¨²t Parameter Sweep tr¨ºn c?t Value c?a tham s?
o B??c 3: Nh?p d? li?u b?ng tay ho?c s? d?ng c?ng c? Spread Tool ?? nh?p d? li?u
(Tham kh?o th¨ºm trong t¨¤i li?u v? vi?c s? d?ng Spread Tool)
d. Ch?y m? ph?ng (th?c hi?n t??ng t? nh? ph?n 4.6)
e. Hi?n th? k?t qu? m? ph?ng qu¨¦t tham s?:
?? hi?n th? k?t qu? m? ph?ng qu¨¦t tham s? (??i v?i thi?t k? h? th?ng, th??ng hi?n th? s? thay ??i BER
theo gi¨¢ tr? c?a tham s? qu¨¦t), th?c hi?n c¨¢c b??c sau:
o B??c 1: L?a ch?n Report tab trong c?a s? Project Layout
o B??c 2: K¨ªch chu?t v¨¤o n¨²t Opti2Dgraph tr¨ºn Report toolbar
o B??c 3: Trong Project Browser, l?a ch?n tham s? ?? ?? ? Sweep Mode, k¨¦o tham s? n¨¤y
v¨¤ th? v¨¤o tr?c X c?a ?? th? 2D
o B??c 4: Trong Project Browser, l?a ch?n tham s? Min. Log of BER c?a thi?t b? ph?n t¨ªch l?i
bit, k¨¦o tham s? n¨¤y v¨¤ th? v¨¤o tr?c Y c?a ?? th? 2D
K?t qu? thay ??i BER theo tham s? qu¨¦t s? hi?n th? tr¨ºn ?? th? 2D.
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- 17. H¨¬nh 19. C¨¢c b??c ?? hi?n th? k?t qu? m? ph?ng qu¨¦t tham s?
4.8 ??a k?t qu? m? ph?ng v¨¤o b¨¢o c¨¢o
?? ??a k?t qu? m? ph?ng v¨¤o b¨¢o c¨¢o c¨® th? s? d?ng k? thu?t ch?p m¨¤n h¨¬nh. C¨¢c b??c th?c hi?n nh?
sau:
- B?m t? h?p ph¨ªm Alt + Print Screen SyRq ?? l?u t?m th?i c?a s? m¨¤n h¨¬nh mu?n ch?p v¨¤o
Clipboard
- B?m v¨¤o Start > Programs > Accessories > Paint ?? kh?i ??ng ch??ng tr¨¬nh Paint
- V¨¤o menu Edit trong Paint r?i b?m ch?n Paste (ho?c t? h?p Ctrl + V) ?? d¨¢n c?a s? m¨¤n h¨¬nh ??
ch?p t? Clipboard v¨¤o c?a s? l¨¤m vi?c c?a Paint
- S? d?ng c¨¢c c?ng c? Select trong Paint ?? l?y ph?n th?ng tin mu?n sao ch?p l?i theo ? mu?n.
- B?m v¨¤o menu File > Save As ?? ??t t¨ºn cho t?m h¨¬nh v¨¤o ch?n n?i l?u t?m h¨¬nh ?? ch?p v¨¤o m¨¢y
t¨ªnh. C¨® th? l?u d??i d?ng *.bmp, *.jpg, *.jpeg ho?c *.dib. Ho?c ¡°d¨¢n¡± ngay v¨¤o trong file b¨¢o c¨¢o (s?
d?ng ph¨ªm Ctrl + V)
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- 18. B?I TH?C H?NH
B?I S? 1
T¨ºn b¨¤i: S? d?ng ph?n m?m OptiSystem m? ph?ng h? th?ng ??n k¨ºnh quang
M? s? 01
S? ti?t: 4
Thu?c m?n h?c: M?ng truy?n t?i quang
H? ?¨¤o t?o: ??i h?c
1. M?C ??CH
- Gi¨²p sinh vi¨ºn l¨¤m quen v?i vi?c s? d?ng c?ng c? m? ph?ng OptiSystem
- ?ng d?ng trong vi?c thi?t k? h? th?ng th?ng tin quang ??n k¨ºnh ??n gi?n
2. N?I DUNG TH?C HANH
B??c 1: S? d?ng ph?n m?m Optisystem x?y d?ng m? h¨¬nh m? ph?ng h? th?ng th?ng tin quang ??n k¨ºnh ??n
gi?n v?i c¨¢c th?ng s? nh? sau:
- Tham s? h? th?ng
o T?c ?? bit: 2.5Gbit/s
o Kho?ng c¨¢ch truy?n d?n: 100 km
- C¨¢c tham s? to¨¤n c?c (global parameters ?? m? ph?ng):
o T?c ?? bit: 2.5 Gbit/s
o Chi?u d¨¤i chu?i: 128 bits
o S? m?u trong 1 bit: 64
- Ng?n ph¨¢t: ?i?u ch? tr?c ti?p
- S?i quang: S?i ??n mode chu?n
- B? thu: Photodetector PIN k?t h?p v?i b? l?c th?ng th?p Bessel
- C¨¢c thi?t b? ?o tr¨ºn tuy?n ???c ??t t?i c¨¢c v? tr¨ª ph¨´ h?p ?? x¨¢c ??nh ???c ch?t l??ng v¨¤ d?ng t¨ªn hi?u
t?i c¨¢c ?i?m c?n thi?t tr¨ºn tuy?n.
o Thi?t b? ?o c?ng su?t quang
o Thi?t b? ph?n t¨ªch ph? quang
o Thi?t b? ph?n t¨ªch BER
B??c 2: Ch?y m? ph?ng
B??c 3: Hi?n th? k?t qu? m? ph?ng b?ng c¨¢c thi?t b? ?o ??t tr¨ºn tuy?n
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- 19. B??c 4: L?a ch?n m?t tham s? n¨¤o ?¨® c?a ph?n t? trong thi?t k? ?? th?c hi?n qu¨¦t tham s?
3. B?O C?O K?T QU? TH?C H?NH
- M? h¨¬nh m? ph?ng
- C¨¢c tham s? m? ph?ng chi ti?t
- K?t qu? m? ph?ng
- L?a ch?n m?t tham s? n¨¤o ?¨® c?a m?t trong c¨¢c ph?n t? tr¨ºn tuy?n, th?c hi?n qu¨¦t tham s? ?? kh?o
s¨¢t s? thay ??i BER theo tham s? qu¨¦t
- Nh?n x¨¦t, ph?n t¨ªch k?t qu? m? ph?ng
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- 20. B?I S? 2
T¨ºn b¨¤i: S? d?ng ph?n m?m OptiSystem thi?t k? h? th?ng th?ng tin quang WDM
M? s? 02
S? ti?t: 4
Thu?c m?n h?c: M?ng truy?n t?i quang
H? ?¨¤o t?o: ??i h?c
1. M?C ??CH
Gi¨²p sinh vi¨ºn s? d?ng ???c c?ng c? m? ph?ng Optisystem trong vi?c thi?t k? tuy?n th?ng tin quang WDM.
2. N?I DUNG TH?C HANH
B??c 1: X?y d?ng ph??ng ¨¢n thi?t k? h? th?ng th?ng tin quang WDM c¨® s? d?ng khu?ch ??i quang EDFA
v?i c¨¢c y¨ºu c?u thi?t k? nh? sau:
- T?c ?? bit: 10 Gbit/s
- C? ly truy?n d?n: 400 km
- S? l??ng k¨ºnh b??c s¨®ng: 8 k¨ºnh
- Lo?i s?i: S?i quang ??n mode chu?n
- Ngu?n ph¨¢t: D¨´ng ?i?u ch? ngo¨¤i
- B? thu: S? d?ng PIN k?t h?p v?i b? l?c th?ng th?p Bessel
B??c 2: S? d?ng ph?n m?m Optisystem x?y d?ng m? h¨¬nh m? ph?ng h? th?ng th?ng tin quang WDM theo
ph??ng ¨¢n ?? thi?t k?.
L?u ?: c¨¢c tham s? to¨¤n c?c (global parameters ?? m? ph?ng) ???c thi?t l?p nh? sau
- T?c ?? bit: 10 Gbit/s
- Chi?u d¨¤i chu?i: 128 bits
- S? m?u trong 1 bit: 64
B??c 3: ??a c¨¢c thi?t b? ?o v¨¤o m? h¨¬nh m? ph?ng. C¨¢c thi?t b? ?o tr¨ºn tuy?n ???c ??t t?i c¨¢c v? tr¨ª ph¨´ h?p
?? x¨¢c ??nh ???c ch?t l??ng v¨¤ d?ng t¨ªn hi?u t?i c¨¢c ?i?m c?n thi?t tr¨ºn tuy?n.
- Thi?t b? ?o c?ng su?t quang
- Thi?t b? ph?n t¨ªch ph? quang
- Thi?t b? ?o BER
B??c 4: Ch?y m? ph?ng
B??c 5: Hi?n th? k?t qu? m? ph?ng b?ng c¨¢c thi?t b? ?o ??t tr¨ºn tuy?n
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- 21. B??c 6: Thay ??i c¨¢c tham s? c?a c¨¢c ph?n t? tr¨ºn tuy?n ?? ??t ???c BER = 10-12
3. B?O C?O K?T QU? TH?C H?NH
- M? h¨¬nh m? ph?ng
- C¨¢c tham s? m? ph?ng chi ti?t
- K?t qu? m? ph?ng
o K?t qu? m? ph?ng theo ph??ng ¨¢n thi?t k? ban ??u h? th?ng ban ??u
o S? thay ??i c?a c¨¢c tham s? thi?t k? ?? ??t ???c BER = 10-12
- Nh?n x¨¦t, ph?n t¨ªch k?t qu? m? ph?ng
B?I S? 3
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- 22. T¨ºn b¨¤i: Kh?o s¨¢t ?nh h??ng c?a s?i quang ??n ch?t l??ng truy?n d?n c?a h? th?ng WDM
M? s? 03
S? ti?t: 4
Thu?c m?n h?c: M?ng truy?n t?i quang
H? ?¨¤o t?o: ??i h?c
1. M?C ??CH
Gi¨²p sinh vi¨ºn s? d?ng ???c c?ng c? m? ph?ng Optisystem trong vi?c kh?o s¨¢t ???c ?nh h??ng c?a c¨¢c c?a
s?i quang ??n ch?t l??ng c?a h? th?ng WDM. C? th?:
- ?nh h??ng c?a suy hao
- ?nh h??ng c?a t¨¢n s?c
- ?nh h??ng c?a hi?u ?ng phi tuy?n
2. N?I DUNG TH?C HANH
B??c 1: S? d?ng ph?n m?m Optisystem x?y d?ng m? h¨¬nh m? ph?ng h? th?ng th?ng tin quang WDM v?i c¨¢c
th?ng s? nh? sau:
- Tham s? h? th?ng
o T?c ?? bit: 2.5 Gbit/s / 10 Gbit/s
o S? l??ng k¨ºnh: 8/16
o Kho?ng c¨¢ch k¨ºnh: 100GHz/50 GHz
o Kho?ng c¨¢ch truy?n d?n: 100 km
- C¨¢c tham s? to¨¤n c?c (global parameters ?? m? ph?ng):
o T?c ?? bit: 2.5 Gbit/s / 10 Gbit/s
o Chi?u d¨¤i chu?i: 128 bits
o S? m?u trong 1 bit: 64
- Ng?n ph¨¢t:
o S? d?ng ?i?u ch?: ?i?u ch? ngo¨¤i d¨´ng b? ?i?u ch? Mach-Zehnder
- S?i quang:
o Lo?i s?i: S? d?ng c¨¢c lo?i s?i kh¨¢c nhau ?? kh?o s¨¢t ?nh h??ng
- B? thu: Photodetector PIN k?t h?p v?i b? l?c th?ng th?p Bessel
B??c 3: ??a c¨¢c thi?t b? ?o v¨¤o m? h¨¬nh m? ph?ng. C¨¢c thi?t b? ?o tr¨ºn tuy?n ???c ??t t?i c¨¢c v? tr¨ª ph¨´ h?p
?? x¨¢c ??nh ???c ch?t l??ng v¨¤ d?ng t¨ªn hi?u t?i c¨¢c ?i?m c?n thi?t tr¨ºn tuy?n.
- Thi?t b? ?o c?ng su?t quang
- Thi?t b? ph?n t¨ªch ph? quang
- Thi?t b? ?o BER
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- 23. B??c 3: Ch?y m? ph?ng
B??c 4: Hi?n th? k?t qu? m? ph?ng b?ng c¨¢c thi?t b? ?o ??t tr¨ºn tuy?n
B??c 5: Thay ??i c¨¢c tham s?:
- T?c ?? truy?n d?n
- C?ng su?t ngu?n ph¨¢t
- Tham s? c?a s?i quang
X?y d?ng c¨¢c k?ch b?n ?? kh?o s¨¢t ?nh h??ng c?a suy hao, t¨¢n s?c v¨¤ hi?u ?ng phi tuy?n trong s?i quang
??n ch?t l??ng v¨¤ kh? n?ng truy?n d?n c?a h? th?ng WDM.
3. B?O C?O K?T QU? TH?C H?NH
- M? h¨¬nh m? ph?ng
- C¨¢c tham s? m? ph?ng chi ti?t
- K?t qu? m? ph?ng
o K?t qu? m? ph?ng h? th?ng ban ??u
o K?t qu? m? ph?ng v?i c¨¢c k?ch b?n ?? ???c ??a ra nh?m kh?o s¨¢t ?nh h??ng c?a suy hao,
t¨¢n s?c v¨¤ hi?u ?ng phi tuy?n trong s?i quang ??n ch?t l??ng v¨¤ kh? n?ng truy?n d?n c?a h?
th?ng.
- Nh?n x¨¦t, ph?n t¨ªch k?t qu? m? ph?ng
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