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This section provides an overview for wavelength meters as well as their applications and principles. Also, please take a look at the list of 10 wavelength meter manufacturers and their company rankings. Here are the top-ranked wavelength meter companies as of July, 2025: 1.StellarNet, Inc., 2.Luna Innovations, 3.TOPTICA Photonics AG.
Table of Contents
A wavelength meter measures light's wavelength, offering higher sensitivity than optical spectrum analyzers due to its narrow dynamic measurement range. While optical spectrum analyzers provide broader functionality, wavelength meters focus solely on measuring wavelengths, making them more affordable. The measurement reflects the wavelength in a vacuum, with a minor discrepancy from air measurements due to the air's refractive index.
Wavelength meters are vital for tasks requiring precise wavelength accuracy, such as characterizing optical components, measuring narrow-bandwidth light sources like lasers and LEDs, and evaluating light in optical fiber communications. They are especially common in measuring light between 1,000 and 1,800 nm, critical for optical fiber communications.
Wavelength meters utilize physical light interference, employing Fizeau or Michelson interferometers to measure wavelength. These interferometers create interference fringes from light beams, unique to each wavelength and the optical path difference. The wavelength is calculated based on the known optical path difference and the interference pattern observed.
Essential for optical fiber communications, wavelength meters measure the 1,500 nm band, the most efficient for minimizing light loss. As the demand for bandwidth increases, wavelength meters now often measure multiple wavelengths simultaneously, with advanced models handling up to 1,024 wavelengths to support wavelength multiplexing technologies.
Wavelength meters also serve in semiconductor laser evaluation for optical communications, with models that rapidly assess single wavelengths on production lines. Additionally, they support measurements in bands below 1,000 nm for optical fiber amplifiers and cater to applications like optical coherence tomography in ophthalmology and fluorescence observation in biotechnology, with models covering 300 nm to 1,200 nm.
Some wavelength meters accommodate both continuous wave (CW) and high-speed pulsed light sources, which are crucial for various laser applications. It's important to select a model based on its compatibility with the intended light source.
*Including some distributors, etc.
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Luna Innovations, founded in 1990, is a manufacturer of fiber optic sensing and non-destructive testing products such as high-definition strain & temperature sensors, interrogators, transmitters & receivers, control units, and accessories. Based in Roanoke, Virginia, the company engages in sensing and non-destructive testing, communications testing, and photonic control. They produce products for photonic control and communication testing, including fiber coils, reflectometers, distributed component analyzers, instruments, and meters.The products are used in the communication, aerospace, automotive, and energy industries.
StellarNet, Inc. is an American miniature spectrometer system products manufacturer and supplier that was established in Tampa, Florida, in 1991. The company’s product lineup includes portable and compact fiber optic spectrometers for near-infrared (NIR), visible (VIS), and UV measurements. It also offers various specialized light sources such as deuterium, tungsten halogen, and mercury argon. The company’s products are commonly used in academic and research institutions, as well as in the medical industry.
Keysight Technologies, Inc. was founded in 1939 and headquartered in Santa Rosa, California. Keysight is a global developer and manufacturer of electronic design and test solutions to communications, networking, aerospace, defense, and government, automotive, energy, semiconductor, electronic, and education industries. Keysight’s communications solutions group solutions include electronic design automation software; radio frequency and microwave test solutions, hardware and virtual network test platforms and software applications, as well as optical laser source solutions. Keysight’s electronic industrial solutions group offers various design tools and verification tools. Keysight offers product support, technical support, and training and consulting services. It sells its products through direct sales force, distributors, resellers, and manufacturer's representatives.
Yokogawa Test & Measurement Corporation was founded in Japan in 1954. Yokogawa currently serves a wide array of industries including the aerospace, automotive, consumer electronics, semiconductor and telecommunications industries with both hardware and software solutions. Among Yokogawa’s suite of products are oscilloscopes, voltage probes, power analyzers and meters, data acquisition tools, optical test equipment, a wide variety of handled meters, calibrators, and testers; analog instruments, and manometers.
TOPTICA Photonics Inc. is a manufacturer and supplier of lasers and laser-based systems used in scientific and industrial applications. Founded in 1998 and is headquartered in Rochester, New York, with additional locations in Germany, China, Japan, and Korea. Their product portfolio includes diode lasers, ultrafast fiber lasers, frequency combs, and terahertz systems. These products are used in a wide range of applications, such as quantum technology, spectroscopy, microscopy, semiconductor metrology, and material processing. One of their notable products is the FemtoFiber ultra 920, an ultrafast fiber laser with a wavelength of 920 nm, used in spectroscopy and microscopy applications.
Nokia, established in 1865 and headquartered in Espoo, Southern Finland, is a manufacturer of telecommunications equipment. The company specializes in networking solutions that unite people, machines, and devices to unleash digital potential. Its products include network and IP infrastructure, software, and associated services, catering to communication service providers and diverse verticals. From BSS/OSS software solutions to core networks, data centers, and security offerings, it empowers businesses to differentiate, expand, and secure operations. The company offers fixed and mobile networks, optical networks, and cloud services, serving energy, finance, and healthcare industries.
TEKTRONIX, INC., founded in 1946, is a manufacturer of measurement solutions used in 3D sensing, EMI/ EMC testing, high-speed serial communication, material science engineering, and Wireless & RF testing. The products include oscilloscopes & probes, signal generators, margin testers, multimeters, and analyzers. The company's products are used in advanced research, aerospace & defense, automotive, power semiconductor, and medical industries. The Bracknell Berkshire company offers calibration, repair, asset management, package assembling, and testing services following NEMA, HAlT & HASS, environmental, and shock-vibration testing.
ADC Corporation, founded as a subsidiary of Takeda Riken Industry Co., Ltd in 1971 and based in Saitama, Japan, is a producer of analog measurement devices like optical power meters, source monitor units, and digital multimeters. Separating from Takeda Riken Industry Co., Ltd (Present Adventest Corporation) in 2003, the company began being a developer, manufacturer, and distributor of optical and electronic measuring instruments, digital multimeters, monitors for DC voltage/current sources and digital electrometers which they specialize in.
SOLAR Laser Systems, established in 1991 and based in Minsk, Belarus, is an ISO 9001 and ISO 13485 certified manufacturer and supplier of laser equipment and spectral instruments. The company's product range includes Femtosecond Lasers, Picosecond Lasers, Nanosecond Lasers, Diode-Pumped Lasers, and Tuneable Lasers. These products are utilized in scientific, medical, and technological applications. Industries served by it include scientific research, medical diagnostics, technology development, and industrial machinery manufacturing. Alongside its primary products, the company offers services such as system configuration, customer-specific adaptations, commissioning, and ongoing servicing.
Ranking as of July 2025
Derivation Method| Rank | Company | Click Share |
|---|---|---|
| 1 | StellarNet, Inc. |
13.9%
|
| 2 | Luna Innovations |
13.3%
|
| 3 | Yokogawa Electric Corporation |
12.7%
|
| 4 | TOPTICA Photonics AG |
11.6%
|
| 5 | SOLAR Laser Systems |
10.4%
|
| 6 | Keysight Technologies |
10.4%
|
| 7 | TEKTRONIX, INC. |
10.4%
|
| 8 | ADC Corporation |
6.9%
|
| 9 | Yokogawa Test & Measurement Corporation |
6.4%
|
| 10 | Nokia |
4.0%
|
Derivation Method
The ranking is calculated based on the click share within the wavelength meter page as of July 2025. Click share is defined as the total number of clicks for all companies during the period divided by the number of clicks for each company.Number of Employees
Newly Established Company
Company with a History
*Including some distributors, etc.
*Including some distributors, etc.
| Country | Number of Companies | Share (%) |
|---|---|---|
|
United States of America
|
3 | 42.9% |
|
Japan
|
3 | 42.9% |
|
Germany
|
1 | 14.3% |
29 products found
29 products
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WaveAnalyzer is an optical spectrum analyzer that can measure wavelengths from 1,527 – 1,612 nm in real time and with high resolution. The 1500S is...
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Seven Six Co., Ltd.
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■Summary ・Industry's first portable type ・Equipped with a touch panel monitor (7 inches) ・Compatible with C-band (1,527.8 to 1,568.8 nm), high r...
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■Summary This is a small and compact optical spectrum analyzer that enables CWDM/DWDM network analysis with a single unit. With this single unit, i...
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■Summary Lambdameter measures the peak wavelength and optical power of a laser in real time. It uses a multi-channel photodiode system and has thre...
Ato
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This is a system that simultaneously measures the spectrum of weak luminescence and fluorescence at all wavelengths. Lumiful SpectroCapture is a hi...
