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可視光源 VFL650

Visual Fault Locator

This product has been discontinued

Now you can easily isolate high losses and faults in optical fiber cable with the VFL-650 Visual Fault Locator. This handheld, visible laser source emits a bright beam of red light into a fiber, allowing you to see a break as a glowing or blinking red light. Two versions are available: one with a universal port for 2.5mm ferrule connectors (FC, SC, ST, E2000, DIN), and one which includes an adapter that allows use with 1.25mm ferrule connectors as well (LC, MU).

Optical Specifications

Emitter Type
Laser Diode
Wavelength (nm)
635 nm
CW Output Power
> -3dBm (500μW) into a Single-mode or Multi-mode fiber
Modulation Modes
CW or Pulsed (2-3 Hz)
up to 5 km
Two AAA alkaline batteries
Fiber Type
Multimode or Single-mode
Temperature Range
-10°C to +50°C
Length: 168mm, Diameter: 12 mm, Weight: <60g

  • Visible (red) light with CW and pulsed modes of operation
  • Lightweight (<60g)
  • 40 hours continuous operation
  • Cost-effective solution