avim connector esa - nasa · the avim connector family, is designed to be used in high reliability...
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![Page 1: AVIM Connector ESA - NASA · The AVIM connector family, is designed to be used in high reliability space and aerospace programs. These connectors are designed as Single Terminus,](https://reader035.vdocuments.us/reader035/viewer/2022062601/5e535cdd67faa573ad5b4140/html5/thumbnails/1.jpg)
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Fiber optic connector for space applications
![Page 2: AVIM Connector ESA - NASA · The AVIM connector family, is designed to be used in high reliability space and aerospace programs. These connectors are designed as Single Terminus,](https://reader035.vdocuments.us/reader035/viewer/2022062601/5e535cdd67faa573ad5b4140/html5/thumbnails/2.jpg)
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� The AVIM connector family, is designed to be used in high reliability space and aerospace programs. These connectors are designed as Single Terminus, Fiber Optic Connectors applicable for Single mode, Multimode and PM Fibers.
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� Single mode / Multimode / PM Fiber Compatible� Active aligned core for lowest insertion loss� Unique AVIM 2-piece cleanable Adapter for black box applications� Environmentally robust, survives vibration, shock, thermal cycling
and repeated mating.� Wide temperature operating range: -55°C to +125°C� Low out gassing materials applied conform to space applications� Sealed, flange mounted bulkhead allows pressure feed through� Diamond has produced and sold over 10’000 pieces since 1996.
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Fiber- Single Mode 1550/1625, 1310,
980nm- Multimode- Polarization maintaining
Optical Requirements- IL max. 0.5dB- RL PC >45dB- APC >70dB- ER (PM fibers): min. 20 dB
Thermal Cycling- Temperature range -55°C (+0, -
5°C) to +125°C (+5, -0°C)
Ferrules - Active Alignment- The active alignment ferrule
Shock- The adapter shall be capable of surviving a shock of
2000g over a frequency range of 100 - 10,000 Hz.Vibration- Samples shall be subjected to vibration at 46.4Grms
Random for 3 minutes in each axes.Temperature Life- Test condition 240 hours test, temperature 100°C.Mating Durability- Connector pairs (plug-adapter-plug) shall be tested
for mating durability for total of 500 mating cycles.Bulkhead Adapter- The bulkhead adapter shall be designed such that
the fiber interface of the internal connector plug can be cleaned conventionally without disconnecting the plug. It’s a 2-piece cleanable adapter.
Alignment Sleeve- The alignment sleeve shall be a split-sleeve
configuration made from ceramic zirconia.
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Loss Results for 500 Connectors
0
20
40
60
80
100
120
0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5
More
Insertion Loss [dB]
Num
ber
of C
onne
ctor
s
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Return Loss of 500 Connectors
0
100
200
300
400
500
50 52 54 56 58 60 62 64 66 68 70
Return Loss [dB]
Num
ber o
f Con
nect
ors
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Recommended Panel CutoutPANEL MOUNT
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D-624Series
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-1.00
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1 101 201 301 401 501
Inse
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Plot for connector serial number: 14254
-0.5
-0.3
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0.1
0.3
0.5
0 2 4 6 8 10 12 14 16 18 20 22
Time (hrs.)
Dev
iatio
n (d
B)
Temperature Plot
-60
-10
40
90
140
0 2 4 6 8 10 12 14 16 18 20 22
Time (hrs.)
Deg
rees
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Vibration Test Optical Stabiliy
-0.5
-0.3
-0.1
0.1
0.3
0.5
00:03
:0800
:03:38
00:04
:0800
:04:38
00:05
:0800
:05:38
00:06
:0800
:06:38
00:07
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:07:38
00:08
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Time [min]
Opt
ical
Cha
nge
[dB
]
#1
#2
#3
#4
#5
#6
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Radius of Curvature: 13.85mm
Fiber Spherical Height: 0.047µm
Linear Offset (µm) 17.1µm
APC Polish Angle: 7.988°
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� Test performed from 200MHz to 18GHz� Test determines the RF attenuation through the Bulkhead� Shielding is better than 60dB from 200MHz to 5.8GHz� Shielding from 5.8GHz to 18GHz was measured at better than
30dB but Test Equipment limited.
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� Test Bulkhead Feed through for pressure leakage� 5 Connector Samples tested� Tested into 1.0 x 10-3 TORR
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PM tuning system. Jointed to Diamond‘sactive core alignment, is the garanty for out
standing ER between fast & slow axis
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[dB][dB]
0.150.080.19
Before thermal cyclingCa 23°C
0.230.120.36
After thermal cycling+ 80°C /– 40°C; 20 cycles
Fibre type 6L.4944.038.00PM 6 / 125 / 400
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Test performed for TESAT-Spacecom GmbH & Co. KG
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Fibre type 6L.4944.038.00PM 6 / 125 / 400
maximumvariation+20°C-40°C+80°C@ +20°C
4.526.122.621.625.82.028.728.328.626.7
[dB][dB][dB][dB][dB]
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Test performed for TESAT-Spacecom GmbH & Co. KG
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Test performed for TeSat-Spacecom GmbH & Co. KG
0.010.060.05longitudinal (Z)
0.000.150.15transversal (X/Y)
0.010.330.32longitudinal (Z)
0.000.210.21transversal (X/Y)
maximumvariation [dB]
Max. value [dB]Min. value[dB]Vibration axis
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� The features of the fiber cable is a relevant aspect in relation to the global performance of fiber optic patch cords.
� To prevent that influence, most of the previously presented tests were performed on secondary coated fiber.
� The features of the materials used for their sheath layers (mainly extensional & retraction properties) are of capital importance.
� The level of fiber’s micro movement permitted in the cable might prejudice good behaviors of the whole assembly
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-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
Opt
ical
Pow
er [d
Bm
]
100806040200Time [h]
100
80
60
40
20
0
-20
-40
-60
Temperature [°C
]
A 1310nm
-12
-11
-10
-9
-8
-7
-6
-5
-4
-3
-2
Opt
ical
Pow
er [d
Bm
]
100806040200Time [h]
100
80
60
40
20
0
-20
-40
-60
Temperature [°C
]
A 1550nm
Result of unproper matching connector - cable
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Restoring
-10
-8
-6
-4
-2
10098969492908886848280
Measurement @ 1550nm
Channel 1: cut in the outer cable sheath
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•Diamond has already several solution for a good matching between connector and fiber/fiber cable. Pretreating of the cable, expansion chambers in the connector•Only a good collaboration between the connector manufacturer, the cable manufacturer, the user and the termination facility guaranties good results & performances.
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Sensor packageon the Space Shuttle
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•Intersatelit Links in the Terasar missionTeSat-Spacecom GmbH & Co. KG
AVIM - PM
•ESA SMOS missionContraves Space
AVIM SM
•Other qualified projects and tests wererealised.
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Activities are in process to define applicablespecifications for a fullqualification at the ESA.
ESA qualification
EVALUATION TEST PROGRAMM
FOR
SIMPLEX OPTICAL FIBER CONNECTOR SET
ESA/SSC Basic specification Nr. 33
Draft A
0402
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IP67 Sealed connection
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Additonal advatages:
•Protection of the full connector against humid environment, prevention of failures due to humidity, salt water, corrosiveenvironement in the inside of the plug.
•Prevention of ice building within the connector and the matingsurface.
IP67 Sealed connection
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IP67 Sealed connection
Now under test!
Test procedure:Immersion in Sweet water at:
•Ca. 23° C•Depth: 1m•Time: 30 min
Results:�IL (on 9 µm fibre core) <0.2 dB (@1310 & 1550 nm)
�Variation in IL (before/after) <0.02 dB
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�Thank you for your kind attention
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