JDSU
OLA-55M
The JDSU OLA-55M is a portable tunable optical attenuator. The JDSU OLA-55M is designed for singlemode fiber with calibrated wavelengths at 1310, 1550, and 1625 nm. The JDSU OLA-55M provides a maximum attenuation of 60 dB.[1]
What it is
The JDSU OLA-55M is a portable tunable optical attenuator.[1]
How it works
General reference — not yet source-verifiedA tunable optical attenuator reduces the power of an optical signal by a controlled amount, typically using a variable neutral density filter or a variable aperture.
Where it fits in the process flow
General reference — not yet source-verifiedIn fiber optic test setups, a tunable optical attenuator is placed between the light source and the device under test or power meter.
Applications
General reference — not yet source-verifiedTypical applications include testing the sensitivity of optical receivers, measuring power margin, and simulating the loss of long fiber spans.
What do the numbers mean?
Optics & imaging11
Performance1
Configuration & options10
Vintage & configurations
What replaced it?
Related models
- siblingJDSU OLA-55— Listed in the same catalog as a portable tunable optical attenuator with calibrated wavelengths 1310, 1550, 1625 nm, operating wavelengths 1260-1650 nm, singlemode fiber, 60 dB maximum attenuation, insertion loss less than 2.5 dB, attenuation accuracy 0.8 dB, and powers up to +23 dBm.source[1]
- siblingJDSU OLA-54— Portable tunable optical attenuator for multimode fiber (50/125 µm) with calibrated wavelengths 850, 1300 nmsource[1]
Where are the manuals?
Generated from public-source data on file. Enter your email to access — nothing is published; details are routed privately.
Not publicly documented
Field notes
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Frequently asked questions
What fiber type does the JDSU OLA-55M support?
Singlemode fiber.[1]
What are the calibrated wavelengths of the JDSU OLA-55M?
1310 nm, 1550 nm, and 1625 nm.[1]
What is the insertion loss of the JDSU OLA-55M?
Less than 2.5 dB.[1]
What is the operating wavelength range of the JDSU OLA-55M?
1260 nm to 1650 nm.[1]
Not publicly documented
The following facts about the OLA-55M are absent from this record as of this revision. First-hand knowledge or a citation closes a gap; every submission is reviewed before publication.
No publicly documented production dates or lifecycle milestones (introduction, end of production, EOL) for the OLA-55M are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the OLA-55M are not on record.
Answerable by: an engineer who operated it or OEM installation records
No publicly documented failure modes or field errata for the OLA-55M are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
No publicly documented compatible parts, consumables, or accessories for the OLA-55M are on record.
Answerable by: an OEM parts catalog or a service engineer
No publicly hosted manuals, SOPs, or datasheets for the OLA-55M are on record.
Answerable by: university cleanroom staff or an OEM application specialist
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (1)Every fact above is drawn from these public sources
- [1]tehencom.com — tehencom.comtehencom.com
Last updated Oct 8, 2026.
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