The Thorlabs PM60 and PM61 Series of Fiber Optic Power Meters are robust, full-featured, handheld instruments, which together cover the full range of optical fiber applications within the 400 - 1700 nm range with optical powers ranging from -70 dBm to +23 dBm (100 pW - 200 mW). A rugged enclosure, internal sensors, kickstand, and hand strap eyelet (hand strap not included) make these models ideal for field or lab applications. The PM60A and PM61A power meters use a Si sensor for detection between 400 nm and 1100 nm, while the PM60C, PM60CH, PM61C, and PM61CH use an InGaAs sensor for detection between 800 nm to 1700 nm. 

Features:

  • Si (PM6xA) or InGaAs (PM6xC or PM6xCH) Sensors
  • Wavelength Range:
  • 400 nm - 1100 nm (Si)
  • 800 nm - 1700 nm (InGaAs)
  • Power Ranges: -70 dBm to 23 dBm
  • Interchangeable Fiber Connector
  • Options Available for Integrated Visual Fault Locator
  • Absolute and Relative Measurements Displayed in dBm, dB, pW, nW, µW, mW, and W
  • NIST- and PTB-Traceable Wavelength Calibration
  • Digital Menu Navigation via Physical Buttons and Capacitive Touchscreen
  • Optical Power Meter PC Software Available 

Device Design
The PM60 and PM61 series power meters can be operated using both a 2.8" capacitive touchscreen and the physical keys shown in the image above. An interactive GUI is available for download to demo all the features. Each power meter comes with a USB C rechargeable, lithium polymer (LiPo) battery with a 2300 mAh capacity. The PM61 series power meters feature an additional wireless charging capability via an inductive charging coil. Each power meter is shipped with an SM05 (0.535"-40) internally threaded PM20-25 adapter for fiber patch cables with 2.5 mm ferrules. The PM20-25 adapter is designed without a locking mechanism to allow for fast and efficient power measurements using patch cables with a variety of terminations.

The PM61 series power meters are equipped with a Visual Fault Locator (VFL) consisting of a 650 nm class 2 guide laser and 2.5 mm ferrule receptacle which can be used to find fibers in a bundle, breaks in a fiber, or alignment into an optical fiber. The VFL can be used in a continuous wave (CW), 1 Hz flashing, or 3 Hz flashing setting.

Remote Operation
The PM60 and PM61 series power meters can be controlled remotely using Thorlabs' Optical Power Monitor (OPM) software. Both series feature a USB 2.0 interface to connect to a PC. Additionally, the PM61 series has a built in Bluetooth module that allows the user to establish a wireless connection to a PC. Remote connectivity allows the user to access the power meter settings, visualize power measurements, and record data directly through the OPM software. Please see the Software tab for details.

Analysis Tools
The Fiber Power Meter Series offer Data Logging and Statistics analysis tools which allow for power levels over a specified time period to be recorded and saved on the internal memory to be accessed at a later time using the USB connection and an external PC. The Data Logging tool shows a time trace of the power levels over the given interval while the Statistics tool shows the number of samples, elapsed time and mean, maximum, and minimum power levels. The PM61 series also features the Pass / Fail Analysis tool which gives a visual indication to whether a given measurement is within a predefined power range. 

Each unit is shipped with a PM60 or PM61 series power meter with an attached PM20-25 fiber adapter, USB cable (Type A to Type C), Certificate of Calibration, and Quick Reference.

More information, including detailed specifications and a downloadable Interactive Demo, available here.

Power Ranges:

  • -65 dBm to 16 dBm (300 pW - 40 mW) for PM6xA
  • -70 dBm to 13 dBm (100 pW - 20 mW) for PM6xC
  • -55 dBm to 23 dBm (3 nW - 200 mW) for PM6xCH

Interchangeable Fiber Connectors:

  • PM20-25 2.5 mm Ferrule Adapter Included
  • FC/PC, FC/APC, SC, ST®, LC, or SMA Adapters Sold Separately

Available models:

PM60 Fiber Optic Power Meters with Internal Sensor

  • Handheld Fiber Optic Power Meter for Wavelength Ranges Between 400 - 1700 nm
  • 2300 mAh Battery with USB C Charging Cable Included
  • Remote Operation Using USB 2.0 Interface
  • Internal Data Storage and Access via USB

The PM60 Series Fiber Optic Power Meters are robust, handheld instruments that are ideal for both lab and field applications. Each unit includes a rechargeable 2300 mAh LiPo battery that has the capacity for continuous operation throughout a workday. 

The PM60A power meter features an internal Si sensor for measuring wavelengths from 400 nm to 1100 nm at optical powers from -65 dBm to +16 dBm (300 pW - 40 mW). The PM60C and PM60CH power meters both feature an InGaAs sensor for measuring wavelengths from 800 - 1700 nm and are sensitive to optical powers from -70 dBm to +13 dBm (100 pW - 20 mW) and -55 dBm to +23 dBm (3 nW - 200 mW), respectively.

PM61 Fiber Optic Power Meter with Internal Sensor and Visual Fault Locator

  • Handheld Fiber Optic Power Meter for Wavelength Ranges Between 400 - 1700 nm
  • Built-In 650 nm Visual Fault Locator (VFL) Included
  • 2300 mAh Battery with USB C Cable and Wireless Charging Included
  • Remote Operation Using USB 2.0 or Bluetooth Interface
  • Internal Data Storage and Access via USB

The PM61 Series Fiber Optic Power Meters are robust, handheld instruments that are ideal for both lab and field applications. Each unit includes a rechargeable 2300 mAh LiPo battery that has the capacity for continuous operation throughout a workday. 

The PM61A power meter features an internal Si sensor for measuring wavelengths from 400 nm to 1100 nm at optical powers from -65 dBm to +16 dBm (300 pW - 40 mW). The PM61C and PM61CH power meters both feature an InGaAs sensor for measuring wavelengths from 800 - 1700 nm and are sensitive to optical powers from -70 dBm to +13 dBm (100 pW - 20 mW) and -55 dBm to +23 dBm (3 nW - 200 mW), respectively. 

Each PM61 series fiber optic power meter contains an integrated VFL that emits ≤1 mW at 650 nm and can be used for detecting fibers in a bundle, breaks in an optical fiber, or aid in free-space to fiber alignment. The VFL can be operated in CW, Flashing: 1 Hz, or 3 Hz modes via the touchscreen or physical buttons on the device, or using the OPM software GUI.

Additionally, the PM61 series features user configurable menus along with Admin / User levels to ensure operation is customizable and secure for all users. 

Lasers, Light & other EM Sources