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Fiber Optic Hermetic Connectors

Fiber optic cable seals are bi-directional and seal both pressure and vacuum

PAVE-Optic Seals are hermetically sealed single or multi-mode fiber-optic cables, either insulated or bare cables. Insertion loss is less than 0.5 db @ 800 nm. Any type, combination or length can be ordered for a wide range of applications from high vacuums to moderate or high pressures. ST, SMA, FCPC PAVE-Mate standard multi-mode connectors are also available. See our FAQ for quote requirements for special designs.

For pressures above 300 psi (20 bar), please check with the sales engineer if changing the pressure direction shown on the drawing.

Any type of commercial or military type insulated or bare sealed fiber optic wire or jacketed optic cable either single mode such as SMF28e or most any type multi-mode types are available as a hermetic, gas-tight, fluid-tight, vacuum-tight bulkhead passthrough seal for both low and high Pressure And Vacuum Electrical uses for either pressure or vacuum or bi-directional pressures.

Operating temperatures can vary and be modified depending on the design and materials from -200C to 200C or as required by the customer’s use. All PAVE hermetic seals will pass a very low helium leak test, regardless of the leak test shown on the drawings, which also can be modified upon customer request.

In most cases, the seals are also capable of higher pressure as well than what may be shown on the drawings with special designs capable of sealing up to 10,000 to 25,000 psi.

Both standard and custom-designed sealed fiber optic cable seals are available for both small and large quantities with a variety of mounting styles and cost-efficient designs, O-ring face or piston seals, NPT seals, Conflat ®, ISO, and custom flanges including electron beam or laser weld. Our hermetic epoxy cable seals are highly resistant to solvents, fuels, fluids, and gases and are also NASA-approved for low outgassing in high vacuums up to 10^-8 Torr.

Single or dual-ended fiber optic hermetically sealed connectors are available. Fiber optic cable seals can also be supplied terminated with a wide variety of terminations, SMA, ST, FC, LC, and others upon request. The PAVE Technology proprietary fiber sealing process does not add stress to the fiber allowing for hermetic sealing on bend-sensitive fibers or multichannel polarization-maintaining fibers with an insertion loss of 0.5dB or less.

Feel free to inquire about our fiber optic feedthroughs, sealed fiber optic cable seals, and bulkhead connectors,.

Photos

PAVE-Optic® Seals
PAVE-Optic® Seals
Fiber Optic Feedthrough Connector
Fiber Optic Feedthrough Connector
Fiber Optic Feedthrough
Fiber Optic Feedthrough
Fiber Optic Cable
Fiber Optic Cable

Hermetic Dual-sided Feedthrough Connectors Specifications

  • Dielectric Strength: >17.4 kV/mm
  • Dielectric Constant: 5.3@ 1 Mhz
  • Volume Resistivity: @ 125° C1x1015 Ohm-cm
  • Dissipation Factor: 0.03 @ 1 Mhz
  • Hardness, Shore D: 96
  • Low Vacuum Outgassing: TML: 25% ;CVC<: .01%
  • High Fungus Resistance: MIL-STD–454J/4
  • Specific Gravity: @ 25° C 2.3
  • Compressive Strength: >948 kg/cm2
  • Compressive Modules: 7.7×104 kg/cm2
  • Tensile Strength: >470 kg/cm2
  • Water Absorption (24 hours): 0.03%
HERMETIC EPOXY TEMPERATURE RATING (Epoxy is proprietary and not sold separately)
PAVE Wire Seal® 150
PAVE Wire Seal® 200
PAVE Wire Seal® 200FR
-40° to 150° C
-60° to 200° C
- UL94V-O flame retardant
- Toxicity Rating K (NASA MAPTIS)
- Odor Rating A
- Thermal Vacuum Stability Rating A
- Flammability Rating X
- FM Class 3600, EExd II 90° C TI

The PAVE-Seal® epoxy is impervious to most oils, solvents, fuels, freons, gases, etc. Epoxy samples are available upon request for customer’s evaluation for any specific chemical compatibility.

Installation TypeCable Seal or ConnectorTotal FibersPAVE DescriptionWires 1TypeWires - 2AWG # or Fiber ModeDrawing #
½" o-ring face sealDual sided connector1VS8-SS-150-1-62/125u-ST-ST (See Quick Ship List)1Multimode1271
6.20mm piston o-ringfiber cable1SP4S-E-150-1-SMF28ULTRA-39FC/APC-351single5123
NW40 KF40 flangecable seal1NW40/VS15L-SS-150-1-PMSMFO-182 polarizing1sm5962
NW40 KF40 flangecable seal1NW40/VS15L-SS-150-1-MMFO-182-1461mm5963
1" o-ring face sealcable seal1VS15L-SS-150-1-PMSMFO-182-1461sm5964
1" o-ring face sealcable seal1VS15L-SS-150-1-MMFO-182-1462mm5965
3/8" face piston o-ringCable Seal or Connector Seal1SP6H-E-150-1-SMFO-39.5-79 10k psi1single6022
17.38mm piston face o-ringscable seal1SP11H-E-150-1-SMFO-20cmST-LC FERRULE16054
3/8" piston o-ringcable seal2SP6H-E-150-1/2/2-PC16/SMFO/MMFO-79-138 10k psi1#16fibersm mm6007
½" o-ring face sealDual sided connector1VS8-SS-150-62.5/125u-SMA-SMA9061Multimode1563
1/4" mNPTcable hermetic seal1PT4XL-SS-150-1-FG910UEC-6-421Multimode5747
3/8" mNPTcable seal1PT6-SS-150-1-SMF28E-118FC/UPC-39FC/UPCSMF28esingle5227
½" NPTcable1PT8-SS-150-1-FO-25T-10T 2.5k PSI FC/PC4956
½" NPTDual sided connector1PT8-SS-150-1-MMFO-SMA905-SMA905 550 micron fiber1multi mode5668
½" NPTFC/PC connector1PT8-SS-150-1-MMFO-FC/PC-FC/PC1multi mode5667
½" o-ring face sealDual sided connector1VS8N-SS-150-1-SMFO-QD-QD FO NIPPLE ADAPTER1single mode600 bar pressures2567
Single mode patch cord1multimode patch cord for 25671SMFO2843
½" o-ring face sealDual sided connector1VS8N-SS-150-1-MMFO-SNAPLOCK1Multimode600 bar pressures2567-1
Single mode patch cord1multimode patch cord for 2567-11mmfo2843-1
6.27mm piston o-ringcable seal1SP4-E-150-1-SMF-SC-121single mode3234
0.307" piston o-ring sealcable seal1SP4.9-E-150-1-SMFO-6.5-39 single mode1Multimode2176
⅜" piston o-ringcable seal1SP6-E-150-1-SMFO-3-361Single mode2139
⅜" piston o-ringcable seal1SP6-E-80-1-FOMM-2M-2M1Multimode2121
½" piston o-ringST Connector1SP8M-E-150-1-STFO-12LC, 1500 psi1multi-mode3740
½" piston o-ringcable seal1SP8/128-E-200-1/1-HV18-FO-36-361single mode14kV #181319
½" piston o-ringcable seal1SP8H-E-200-1-MMF-39-191Multimode2851
½" piston o-ring sealcable seal1SP8L-E-150-1-SMFO-2000-2000mm1SMF28e5339
½" piston o-ringcable seal1SP8L-150-1-FO-150cm-150cm1FIBER2712
7/17-20 o-ringcable seal1SO7-SS-150-1-1000umFO-40T-8 SMA plastic core1mm6011
1/2"2- UNF-2AConnector1SO8-SS-150-1-SMFO-ST-SNAPLOCK 3k psi1single mode4961
½"-20 SAEcable seal1SO8M-SS-150-1-200/220umMMFO-589-.041MM4485
½" SAEcable seal8SO8M-SS-150-2/6-MMFO/E24-24/242Multimode6243300
1¼" o-ring face sealcable seal1VS18-SS-150-1-FO-96-48 1000/1035um1multimode4335
1¼" o-ring face sealcable seal1VS18-SS-150-1-FO-1050mm-450mm1fiber optic2430
1/2" o-ring face sealconnector1VS8L-SS-150-1-SMFO-SNAPLOCK Delphi1Single5086
½" o-ring face sealCable Seal1VS8-SS-150-1-SMF28E-43-43SMF28e with Teflon tubingSingle5666
½" o-ring face sealCable Seal1VS8-SS-150-1-SMF28-35AVIM-35AVIM1Single4221
½" o-ring face sealconnector1VS8-SS-150-1-RH62.5/125um-ST-STMultimode5439
½" o-ring face sealDual sided connector1VS8-SS-150-1-100/140u-SMA-SMA 9061Multimode1514
½" o-ring face sealDual sided connector1VS8-SS-150-1-100/140u-ST-ST1Multimode2027
½" o-ring face sealDual sided connector1VS8-SS-150-1-1000/1250u-SMA-SMA9051Multimode2026
½" o-ring face seal1VS8-SS-150-1-1000u(LOW OH)-SMA1Multimode3126
½" o-ring face sealDual sided connector1VS8-SS-150-1-600-SMA-SMA1600u3328
½" o-ring sealsma1VS8-SS-150-3mm-SMA-SMA906 glass window1glass5461
1/8" mNPTcable2PT2-SS-150-2-1000umFO-35-35 urethane3Multimode5700
⅜" piston o-ring sealcable2SP6-E-200-2-SMF28E-1M-1M2single5055
⅜" piston o-ring sealcable2SP6-E-150-2-SMF28E-1M-1M2SMF28e4508
1/2" piston o-ring seal2 plus electrical wiresSP8M-E-150-2TP/2TP/2-CAT6/TZ26/MMFO-90-11CAT6 + 26multimode265074
17.37mm piston o-ringscable seal2SP11M-E-150-2TPT/4TP/2-CAT6/TZ26/SMFO-190-12CAT ^Single mode125033
NW25 Flangecable seal2NW25-SS-150-3-FO-82-361Single mode2750
½" o-ring face sealcable seal2VS8-SS-80-2-FO(BLUE)-1-1M2single mode2127
½" o-ring face sealcable seal2VS8-SS-80-2-FO(CLEAR)-1-1M2Single mode2126
¾"o-ring face sealcable seal2VS12L-SS-150-1-DUPLEXFO-40mLC-4mLC2multi mode3767
¾" piston o-ring sealcable seal2SPF12-E-150-2-980/1000umMMFO-8.6-122Multimode980um4268
17.37mm piston o-ring sealCable Seal2SP11M-E-150-2TPT/4TP/2-CAT6/TZ26/SMFO-410-165594
1" piston o-ring sealcable seal5SP16S-E-150-2/5/5-TP22/TSP28/SMFO-24-2420#22 #285sm6015
25.3mm piston o-ring sealCable Seal2 fibers+1 pair #18+9 pair #28SP16S-E-150-1/9/2-TP18/TSP28/SMFO-48-482single mode#18 & #284893
25.3mm piston o-ring sealCable Seal2 plus 2 #18 + 8 #28SP16-E-150-2/2/8-SMF28/FEP18/TSP28-881/461/101-182SMF28e18 284607
0.656" piston o-ringconnector3SP13-E-150-2/1-E20/FO-#16P-361fo2202947
½" OD piston o-ringcable seal 2500 psi3SP8M-E-150-2TP/2TP/2-CAT6/TZ26/SMFO-76-12Cat6, 2TP #26, 3 SM fiberssm5377
½" o-ring face sealcable seal3SP8/128-E-200-1/2-TE24/FO-2-2m1242fo2625
16.13mm o-ring face sealcable seal2 plus 2 #18VS16M-Ti-150-2/2-MPPE18/SMFO-800/1600mm-500/1600mm1single1multi4597
½" o-ring face sealcable seal3VS8-SS-150-3-100/140u-.5M-.5M3multi mode4352
½" o-ring face sealcable seal3SP8H-3-150-3-FO-0.5-0.5m3Single mode1991
14.17mm piston o-ringcable seal4SP9/128-E-200-4-SMF28-144-964Single mode3357
14.17mm piston o-ringps3SP9/128-E-200-3-SMF28-96-963sm3267
½" o-ring face sealSMF283VS8-AL-150-3-SMF28E-12-12 FC/APC3Single Mode3806
½" o-ring face sealcable seal3VS8-AL-150-3-SMF28E-2-1m FC3Single Mode3525
½" o-ring face sealcable seal3VS8-AL-150-3-FOSMF28-6-2.3 LC/UPC3Single mode2253
½" o-ring face sealcable seal3VS8-SS-150-3-SMFO-48-483Single Mode1955
½" o-ring face sealcable seal3VS8-AL-150-3-SMF28E-2-1m3single mode ST3570
½" o-ring face sealcable seal3VS8-SS-80-3-FO-6-63multimode2271-1
12mm pisoton o-ringETFE & multimode8SP8M-E-150-4/4-TZ20/MMFO-24-174204MM5982
17.37mm piston o-ringsCable Seal4SP11M-E-150-4-SMFO-18T-104-18T DOUBLE SEA4single mode5651
1¼" o-ring face sealcable seal4VS18-SS-150-1-MMFO/PP24-240T-244Multimode4780
1" o-ring face sealcable seal4VS15-SS-150-4-400umFO ST-2m-1m4Multimode3805
Custom 80mm flangecable seal4FL80-SS-150-4-MMFO-338-278 ST4Multimode1442
¾" o-ring face sealcable seal2VS12L-SS-150-2/4-SM/MMFO-48-19 FC/UPC4Multimode4single mode3240
5.38mm piston o-ringcable seal6SP5X-E-200-3/3-PISMFO/ACSMFO-100-100 10k psi3single mode3single mode5604
1-¼" o-ring face sealcable seal6VS18-SS-150-6- FO CABLE-23-141single mode5mult-imode3836
¾" o-ring face sealcable seal6VS12L-SS-150-6-SMFOPM-48-1926Single mode FC/APC3239
½" o-ring face sealcable seal4SP8H-E-150-4-SMFO-50-50cm, single mode4single mode2146
14mm piston sealcable seal4SP9/128-E-200-4-MCSMFO-144-10k psi4Single mode5488
½" piston 0-ringcable seal5SP8H-E-150-5-SMF28-1000-1000M5Single mode2953
12mm piston o-ring sealcable seal6SP8H-E-150-6-SM1500-24-24 10k psi6Single mode5847
12mm piston o-ringcable seal6SP8H-E-150-6-SM1500-24-24 10k psi6Single mode5829
¾" piston o-ringcable seal5SPF12-E-80-4/1-PC20/MMFOST-12-124201multimode2649
25,25mm piston o-ring face sealcable seal3SP16S-E-150-2/2/2-TP16/TP18/SMFO-24-248183single mode5701
25.25mm piston o-ring face sealcable seal5SP16S-E-150-2/5/5-TP22/TSP28/SMFO-24-2422 & 28SM55532
½" o-ring face sealcable seal5VS8N-200-5-SMF28E-1000-2000mm Kapton fiber5Single mode4532
½" o-ring face sealcable seal5VS8N-SS-150-5-SMF28-1000-1000MM5Single mode2905
½" o-ring face sealcable seal5VS8N-SS-150-5-100/140u-.5-.5m Kapton polyimide5multi mode4518
6,25mm piston o-ring sealcable seal6SP4X-E-150-3/3-PMSMFO/PMMMFO-79-7924Panda polarizing fiber cablessmmm5293
14.7mm piston o-ringscable seal6SP9/128-E-200-6-SMF28-240-966SMF28e5530
1" NPTcable sealPT16-SS-150-7/7/2-FIBER/TE22/TE18-24-247Multimode9184170
¾" SAEcable seal10SO12L-SS-200-10-SMFO-2-2m10single modetubing3214
2¾" Conflat flangecable seal8CF275-SS-150-8-FO50/125-500-500mm FCPC8multimode2290
½" o-ring face sealcable seal8VS12-SS-80-4/4-FOP/600UM-30-124polarizing4mulitmode2183
½" o-ring face sealcable seal8VS8-AL-150-4/4-SMF28E/INFINICOR300-1-3m ST4INFINICOR 004single mode3571
3/4" mNPTcable seal10PT12-SS-150-10-1000um FO-72-1441multimode5087
1¼" o-ring face sealcable seal10VS18-SS-150-10-1000umFO-240-6010multimode3815
⅜" piston o-ring sealcable12SP6L-150-12SMFO-18-1812SMF28e4547
2¾" conflat flangecable seal12CF275-SS-150-12-MM85-20-1212multimode3477
¾" SAEcable seal12SO12LX-SS-150-6/6-SM/MM-374-196single mode6multimode2068-1
o-ring face seal customcable seal hermetic12SP38/19-SS-150-12-MMFO-196-19612multimode4945
NW63/KF63 flangecable seal MTP12NW63-SS-150-12-MMFO-92T-92T MTPMM5901
2¾" o-ring face sealcable seal12 plus various electricalVS44-SS-150-2/4/4/2/2-TSP16/3TSP22/4TPS24/7TP24/6MMFO-480-240MM4860
¾" o-ring face sealcable seal13VS12L-SS-80-5/9-SM/MM-3m-3m5single mode8multimode1959
¾" SAEcable seal13SO12L-SS-200-13-SMFO-2-1.7m13Single mode3504
1" o-ring face sealcable seal16VS15L-SS-150-16-SMF28E-48-4816single mode3323
M16 o-ring face sealcable seal22VSM16-Ti-150-2/20-MPPE18/SMFO-1600mm-1000/1500mm22020fiber4963
o-ring face sealcable seal20VSM22-AL-150-2/20-MPPE18/SMFO-1600mm-1000/1500mm20single mode2184676
1" o-ring face sealSMF28e LC APC24VS15L-SS-150-24-SMF28E-120-120mm LC APC24single4589
1" o-ring face sealcable24VS15L-SS-150-24-SMF28E-48-4824SMF28e4434
Laser EB weld ALcable seal24FL9/6-AL-150-2-12SMFO-33-33 SMF28e24single mode5017
1" o-ring face sealcable seal30VS15L-SS-150-20-SMF28E-48-4830single mode3591
1" o-ring face sealPTFE30VS15L-SS-150-8/22-780nm/1550nm FC/APC8780nm221550nm4318
1 1/4" o-ring face sealcable seal40VS18-SS-150-40-MMFO-144-144 PMMA Eskamm1mm5268
1 1/4" o-ring face sealcable seal48VS18-SS-150-48-MMFO-236-11850/125u Drakamm5272
laser weld electron beamribbon cable seal48FL9/6-AL-150-4-12SMFO-33-3348single mode4626
laser weldcable seal48FL8/5-AL-150-4-12SMFO-33-3348single mode4490
1¼" o-ring face sealcable seal48VS18-SS-150-48-MMFO-3M-1M48Multimode4529
1" o-ring face sealcable seal48VS15S-AL-80-48-100/125FO-60-6048Multimode2342