Upload
andrea-adams
View
217
Download
0
Embed Size (px)
Citation preview
Training_FO Connection_GB Page 1
Connections
September 2013
Training_FO Connection_GB Page 2
Options to join optical fiber
• Detachable connectione.g. connectors
• Quasi-detachable connection e.g. mechanical splice
• Non-detachable connection e.g. fusion splice
Connection technique
Training_FO Connection_GB Page 3
Which connection
Choice depending on:• Installation (indoor, outdoor, flexibility)• Standard requirement• Active component• Environment/application (public, private)
Connection technique based on:• Availability of tools• Capability installer• Cost• Cost effectiveness (business case and activity)
Training_FO Connection_GB Page 4
Non-detachable connection
Fusion splice
Cleave of both fiber ends
Clamp and core alignment
Glow discharge and lateral movement of the fiber
Training_FO Connection_GB Page 5
quasi-detachable connection
Mechanical splice
Cleave of both fiber ends
Slide till contact and clamp
Contact area with Index gel to reduce IL and RL
Training_FO Connection_GB Page 6
Connection with to connectors in an adapter
Detachable connection
Connector
AdapterConnector
Connector
Training_FO Connection_GB Page 7
Detachable connection
Single fiber connector
alignment of one fiber in one connector
Multi fiber connector
alignment of several fiber in one connector
Training_FO Connection_GB Page 8
Sleeve
Ferrule
Fiber
Sleeve
Ferrule
Principal 1-fiber connectionFerrule – Sleeve – Principle
Detachable connection
Fiber fixed in the ferrule and guided and aligned in the sleeve
Training_FO Connection_GB Page 9
Detachable connection
Principal multi fiber connectionFerrule – Pin – Principle
All fibers are fixed in one ferrule and aligned with guide pins.
Ferrule
Fiber
FerrulePin
Training_FO Connection_GB Page 10
Ferrule
Detachable connection
• Fixing fiber (glue and cured)• Corrosion free and abrasion-resistant material• Guides fiber concentric in sleeve• Tolerances of hole Ø and eccentricity are parameter
for production quality
• Ø 2.5mm or 1.25mm (1 fiber connector)
• Plastic composite(multi fiber connector)
Training_FO Connection_GB Page 11
Detachable connection
• Sleeve guides and aligns round ferrule• fixing of connector (mechanical locking)• Adaptation in platform/distributor• Key to prevent relative rotation
Adapter (1-fiber)
e.g. E-2000
Training_FO Connection_GB Page 12
Steckzyklen
-0.6
-0.4
-0.2
0
0.2
0.4
0.6
0 32
64
96
128
160
192
224
256
288
320
352
384
416
448
480
512
544
576
608
640
672
704
736
768
800
832
864
896
928
960
992
Zyklus
Däm
pfu
ng
IL
[d
B]
49|54, IL
59|61, IL
LSHRJ PC SM
Typenprüfung
Created By f iberWorks CTS V2.0 12.02.02 10:35:42
1310 nm
Atte
nuat
ion
mating cycles
Detachable connection
Sleeve - Zirconia ceramic
• Insertion loss 0.1 dB• Mating durability >1000 cycles• Static co-efficient of expansion (temperature)• No corrosion
Training_FO Connection_GB Page 13
Steckzyklen
-0.6
-0.4
-0.2
0.0
0.2
0.4
0.6
0 50 100 150 200 250 300 350 400 450 500
Zyklen [x]
IL D
äm
pfu
ng
[d
B]
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1
RL
Dä
mp
fun
g [
dB
]
IL Kanal 1
IL Kanal 2
Data FileName: C:\fiberWorks\MCTS\data\Phbr Sleeve MM Messung 500 Zykl 6.DAT
1300 nm
Phosphor-Bronce Sleeve Optoplast MM Mittelstück 6
Atte
nuat
ion
Mating ciycles
Sleeve - Phosphor Bronze
Detachable connection
• Insertion loss 0.2 dB• Mating durability >500 cycles• Dynamic co-efficient of expansion (temperature)• Corrosion possible
Training_FO Connection_GB Page 14
Detachable connection
• Mechanical guide of the ferrule• fixing of connector (mechanical locking)• Adaptation in platform/distributor• Key to prevent relative rotation
e.g. MPO
Adapter (Multi fiber)
Training_FO Connection_GB Page 15
Detachable connection
End face process
• Air gap
• Flat polish
• Convex polish (PC) Physical Contact
• Angled polish (APC)Angled Physical Contact)
Training_FO Connection_GB Page 16
4% reflection on each end face results in 0.36 dB of loss
Flat polish – air gap
• Non - butting ferrules• No physical contact
Transmission specifications IL < 1.0 dBRL ~ 15 dB
Training_FO Connection_GB Page 17
Radius 10 - 25 mm
Convex polish – physical contact
• Butting ferrules• Spherical physical contact (PC)
Transmission specifications IL < 0.5 dBRL > 20 dB
Training_FO Connection_GB Page 18
Angled physical contact (APC) polish
• Butting ferrules• Angled spherical physical contact
Transmission specifications IL < 0.3 dBRL > 60 dB
Radius 5 - 12 mm
Angle 8°
Training_FO Connection_GB Page 21
Detachable connectors
SC E-2000 ST FC LC MT-RJ MPO
IEC 61754-4 61754-15 61754-2 61754-13 61754-20 61754-18 61754-7
fiber count 1 2 12 -24
Ferrule-material
CeramicPlastic
compound
Guideance Sleeve Pin
Ferrule Ø 2.5 mm1.25 mm
na
LockPush-pull
LeverBayon
etScrew
edLever Lever
Push-pull
Training_FO Connection_GB Page 22
Connector name and description
Type Meaning Originator
Biconic Bi-Conical AT&T
SMA SubMiniature A Amphenol
FC Fiber Connector NTT (Nippon Telephone and Telegraph)
ST (BFOC) Straight Terminus AT&T (American Telephone & Telegraph)
SC Subscriber Connector NTT (Nippon Telephone and Telegraph)
LC Lucent Connector AT&T (American Telephone & Telegraph)
E-2000 brand name? Diamond
MT-RJ Mechanical Transfer Registered Jack AMP
MTP Multiple Termination Push-on Joint-Venture US-Conec (NTT, Corning and Fujikura)
MPO Multi-Fiber Push-on
add-on’s to connector name indicating mechanical properties
-PC Physical Contact
-APC Angled Physical Contact (e.g. 8°)
Training_FO Connection_GB Page 23
More connector types
MU
LX.5 F-3000TM
DIN
Training_FO Connection_GB Page 24
‚Old‘ connector type in LAN application
FDDI
ESCON
SMA
Training_FO Connection_GB Page 25
Detachable connector – Quality
Performance standardized in IEC 61753-1
Training_FO Connection_GB Page 26
Comparison – connection technique
Criteria Detachablequasi detachable
not detachable
Insertion loss [dB] 0,01 to < 0,75 0,1 to < 0,5 0,01 to < 0,2
Return loss [dB] < 25 to c 80 < 40 < 80
Field mounting ok ok ok
Repeated disconnect and connect
Very simple, no tools, no qualified staff
simple, simple tools, trained staff
expansive and complex tools, trained staff
Reliabilityapprox. 500 - 2000 cycles
up to 10 times -
Alignment principlesPins / Sleeve (mech.)
V – groove (mech.)
optical
Contact fiber end Physical contactIndex Gel between fiber end
Fusion
Training_FO Connection_GB Page 28
Obviously derived from GOF
POF connection processes
Mechanical splicetechnique
Crimping or epoxybonding
SMA Type
Fusion splice
Thermal fusion
Ultrasonic welding
Training_FO Connection_GB Page 29
POF connectors
SF H
C o n n ec to rle ss
F SM A BF O C
ST F 05
DN P Versatile
S im p le x C o n n ec to rs
F 07 SC-Duple x
SC-R J Versatile
DN P
D u p le x C o n n ec to rs
PO F /Data PO F /Power
H yb rid C on n e c to rs
P O F Co n n ectio n Sys tem s
Training_FO Connection_GB Page 30
Termination technique: adhesive & polishingFiber fixed to ferrule by adhesive and polishingEpoxy
Two compounds
Precise dosage
Short time to fix after mixing
Curing necessary
Anaerobic
Two compounds
No precise dosage
Time and curing less critical
Ultra-violet
Single compound
Special connector (ferrule transmitting UV)
UV curing and power
Pre-injected
Compound melting oven
Power for oven
No critical curing
Expiring connector (compound limited life)
Training_FO Connection_GB Page 31
Fiber mechanically fixed to ferrule and polishing
• Fiber mechanically retained inside ferrule and polishing• Quick termination• Same polishing
Fiber mechanically fixed and no polishing
• Mechanical splice with pigtail (no polishing)• Quick termination• No polishing
Termination technique: mech. crimping
Training_FO Connection_GB Page 32
POF termination technique
Cold Hot
B lad e Lase r
C u tting G rin d in g /P o lish ing
Hot P late
M e lting
E n d -F ace P rocedu res
Training_FO Connection_GB Page 33
Cutting vs. polishing
Training_FO Connection_GB Page 34
• SC R153179-020C / R303561 1-1 db• E-2000 R30966 / R504541 1-1 db• ST R153175-020C / R303562 1-1 db• FC ? / ? 1-1 db• LC R153535-020C / R501246 1-1 db• MT-RJ ? / ? 1-1 db• MPO ? / R809352 1-1 db
FO csatlakozó / adapter minták