Optical Wavelength Division Power Meter

Optical power meters with wavelength division function can simultaneously measure optical power and wavelength across multiple channels, making them ideal for WDM and laser testing applications.

Overview

An optical power meter (OPM) measures the power of optical signals, typically in fiber optic systems, using a calibrated photodiode sensor and display unit.

Standard OP

Ms require the user to set the wavelength manually, and their readings are wavelength-dependent, which can be limiting in multi-wavelength systems. Advanced meters with wavelength division functionality overcome this by automatically detecting and measuring multiple wavelengths simultaneously.

Key Devices and Features

Yokogawa AQ6141 Multi-Wavelength MeterMeasures up to 512 channels with high wavelength accuracy (±0. 3 pm at 1550 nm)Resolves signals as close as 5 GHz (40 pm at 1550 nm)Wavelength range: 900–1680 nm, with LD evaluation at 980 nmFeatures include narrow bandpass filter measurement, waveform display, and WDM light source monitoring OMM-6810B Optical Multimeter (Newport)Simultaneously measures optical power and wavelengthWavelength range: 400–1650 nm, power up to +40 dBm or 10 WUses self-calibrating power/wavelength heads to correct wavelength-dependent detector responseIdeal for laser diode development and production testing, with high stability and low noise Keysight 86120D Multi-Wavelength MeterWavelength range: 700–1700 nm, accuracy ±1.

5 ppm (typical ±1 ppm)Measures multiple laser lines simultaneously, suitable for DWDM and Fabry-Perot lasersFeatures fast measurement cycles (0. 6 s) and built-in HeNe laser for absolute wavelength referenceSupports optical power measurement up to +10 dBm safely without additional equipment 10G Wavelength Division Optical Power Meter H37Designed for FTTH, FTTB, and FTTX networksCombines VFL and 10G OPM functions for high-performance WDM testingOEM customization available for specific network requirements ApplicationsDense Wavelength Division Multiplexing (DWDM) system testingLaser diode characterization and productionFiber optic network monitoringEvaluation of narrow bandpass filters and multi-channel optical sourcesSummaryOptical power meters with wavelength division functionality provide simultaneous measurement of power and wavelength, high resolution, and multi-channel capability.

They are essential for modern optical communication systems, particularly in WDM networks, where precise wavelength and power monitoring is critical for system performance and quality assurance.