Understanding Optical Wavelength Meters

This article, part of the Test and Measurement World’s equipment section, focuses on optical wavelength meters. We’ll delve into the features of the AQ6150 Optical Wavelength Meter from Yokogawa and also touch upon other vendors in the market. We will also explore benefits of optical wavelength meters.

Optical radiation refers to electromagnetic radiation falling within the 100 nm to 1 mm range. Within this spectrum, the 400nm to 800nm band is visible to the human eye. An optical wavelength meter is a device designed to measure the wavelength of optical signals with extreme accuracy. Yokogawa’s optical wavelength meter achieves picometer and sub-picometer accuracy by analyzing the peak value of the optical signal.

Yokogawa AQ6150 Optical Wavelength Meter

Here’s an image of the Yokogawa AQ6150:

The following table details the key specifications of the Yokogawa AQ6150 Optical Wavelength Meter:

The latest model, AQ6151, offers an improved wavelength accuracy of +/-0.2 ppm, surpassing the AQ6150.

Other Vendors of Optical Wavelength Meters

Several other companies also offer optical wavelength meters:

• Newport Corporation
• HighFinesse Laser and Electronics Systems, GmbH
• Bristol Instruments, Inc.
• RP Photonics Consulting, GmbH
• Keysight Technologies

Benefits of Optical Wavelength Meter

Following are some of the advantages of optical wavelength meter.

1. Accurately measures optical signals in nanometer resolution for precise analysis.
2. Used to calibrate and analyze laser sources, optical transceivers, and tunable lasers.
3. Provides instant wavelength readings, improving efficiency in R&D and manufacturing.
4. Works with a wide spectrum, including visible, near-infrared, and telecom bands.
5. Helps verify the accuracy of DWDM and CWDM system wavelengths to prevent signal interference.
6. Measures optical sources without affecting their operation, ensuring repeatable results.
7. Aids in meeting ITU-T, IEEE, and other regulatory specifications for optical communication.
8. Assists in designing high-performance optical systems, sensors, and spectroscopy applications.

Conclusion

An Optical Wavelength Meter is the gold standard for precision in optical metrology, ensuring accurate wavelength calibration in telecom, photonics, and laser industries. As optical technologies evolve, this instrument remains an indispensable tool for innovation, ensuring precision and reliability in cutting edge optical applications.