In short
- Five channels in parallel. Each channel is fiber-coupled with an SMA input and measures up to 50 W.
- Wide wavelength range: 200 nm to 20 µm.
- Narrow beams: with the narrow-beam adapter probe it profiles beams tens to hundreds of microns wide.
- Alignment and focus: aligning SMA connectors and checking the focus on fiber ferrules, with real-time readings and logging on all channels.
A multi-channel power meter designed for high-power lasers
The IZAK Scientific Multi-Channel Power Meter is designed for high-power lasers and offers high efficiency and precision. It is a major step forward in laser power measurement: instead of moving one sensor between measurement points, it reads five fiber-coupled channels at the same time.
Key features
Measures five channels at once. Each channel is coupled to an optical fiber with an SMA interface.
Covers 200 nm to 20 µm.
Measures up to 50 W in each channel.
Real-time, parallel readings on all five channels, with logging of the results.
Five channels, each with a fiber and an SMA input, plus thermal management and a durable enclosure.
Optical design consultants developed the hardware, and LabVIEW experts built the software.
Profiling and aligning narrow beams
An innovative use of the Multi-Channel Power Meter is the precise profiling of very narrow laser beams, about tens to hundreds of microns wide. It shows how versatile the meter is for demanding photonics tasks.
Profiling narrow beams with the narrow-beam adapter probe
- With the narrow-beam adapter probe, the system images slender beams at a scale of 5 to 7 pixels, for accurate profiling in precise alignment and focus work.
- Useful in research and industry to characterize the width and distribution of a beam.
Combined with the narrow-beam adapter probe, the meter gives a level of detail that is hard to match, which makes it a key tool for narrow, intense beams.
Alignment and focus applications
- Aligning SMA connectors for efficient light transmission in fiber-optic systems.
- Checking the focus on fiber ferrule surfaces or interiors, for quality control, maintenance and troubleshooting.
For the end-face quality itself, see our fiber ferrule inspection system, and for the basics of fibers, cores and numerical aperture, a beginner’s guide to fiber optics.
Watch a short demonstration
Advantages of the multi-channel design
The main advantage of the multi-channel design is simultaneous measurement at several points. It makes alignment and focusing faster and more accurate, because you see the effect of every adjustment on all channels at once.
Its capability in profiling and aligning narrow beams makes it an important tool for pushing precision in photonics. More than a tool, it reflects IZAK Scientific’s commitment to innovation and excellence, and a significant step forward for industries that depend on precise laser power measurement.
Will the beam couple into the fiber?
Before you connect a laser to a fiber-coupled channel, check that the focused spot fits the core and that the focusing cone is inside the fiber’s numerical aperture (NA). The values below are an example; enter your own.
Acceptance half-angle = arcsin(NA). Cone NA = sin(arctan(D / 2f)). Spot diameter = 4·λ·f·M² / (π·D), for a Gaussian beam focused by an aberration-free lens. For multimode fibers; for single-mode fibers, match the spot to the mode-field diameter instead.
Free engineering tool
Gaussian Beam CalculatorRayleigh range, divergence and beam size at any distance, to plan the focusing optics before the fiber.To measure power, energy and the beam profile in one station, see our article on precision photonics testers and the essentials of laser beam profiling.
Frequently asked questions
QHow many channels can the Multi-Channel Power Meter measure at once?
QCan a power meter profile a narrow laser beam?
QHow do I check that a laser couples well into an SMA fiber?
Tzachi Sabati
CEO, IZAK Scientific
Physicist specializing in photonics and quantum technologies, with deep expertise in quantum sensors and advanced optical systems. Leads the Advanced Quantum Lab course at the Technion, bridging academic excellence with industry innovation. At IZAK Scientific, provides cutting-edge photonics-based solutions, developing customized inspection and sensing systems for R&D and production. Passionate about advancing quantum sensing applications and integrating novel technologies to meet industry needs.
