Newport
1931 C Power Meter
Provisional entry — research in progress
This page was generated automatically from cited public sources and hasn't completed the full research pass yet. Every specification shown carries its source; more detail is added as research completes.
The Newport 1931-C is an optical power meter capable of measuring low-power light sources from pW to tens of Watts. The 1931-C supports detectors covering 190–1800 nm wavelengths and provides true RMS measurements. The 1931-C can handle repetition rates up to 20 kHz with a sampling rate of 250 kHz.[1][2]
What is it?
Applications
The 1931-C has been applied in scientific research for space-based gravitational reference sensors, where it measured UV LED optical power for charge control of proof masses. More generally, it is used for laser power measurement, fiber-optic testing, LED characterization, and any application requiring calibrated optical power readings from the pW to tens of watts range across the UV to near-infrared spectrum.[2][1]
What do the numbers mean?
Power & electrical2
Wafer handling1
Optics & imaging2
Control & software2
Configuration & options6
Vintage & configurations
Documented models & variants
| Designation | Generation | Vintage | Changes | Source |
|---|---|---|---|---|
| 2931-C | — | — | Dual-channel version of the 1931-C, allowing simultaneous measurements of two light sources | brltest.com[1] |
What does it need to run?
Site utility requirements, footprint, and infrastructure needed to install and operate this tool. Sourced from public records.
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
No research found yet — worked with this tool? Share what you know.
Frequently asked questions
What optical power range can the 1931-C measure?
The 1931-C can measure optical power from 11 fW to 40 W.[1]
What is the maximum repetition rate the meter can handle?
The 1931-C can handle repetition rates up to 20 kHz with a sampling rate of 250 kHz.[1]
Does the 1931-C offer data logging capabilities?
Yes, it has a 250,000-point data storage buffer and can store measurements to internal memory or a USB Flash drive.[1]
Not publicly documented
The following facts about the 1931 C Power Meter 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 1931 C Power Meter are on record.
Answerable by: OEM historical records or a trade-press announcement
The control-system platform and OS era of the 1931 C Power Meter 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 1931 C Power Meter are on record.
Answerable by: a field service engineer, process engineer, or maintenance technician
The process node or technology generation of the 1931 C Power Meter is not on record.
Answerable by: an OEM datasheet or a fab qualification report
No publicly documented compatible parts, consumables, or accessories for the 1931 C Power Meter are on record.
Answerable by: an OEM parts catalog or a service engineer
No research found yet — worked with this tool? Share what you know.
Sources & citations
Sources (3)Every fact above is drawn from these public sources
- [1]brltest.com — brltest.combrltest.com
- [2]https://arxiv.org/pdf/1202.0585 — arxiv.orgarxiv.org
- [3]Equipment inventory listing
Last updated Sep 1, 2026.
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