What is the optical output of the OTDR VLS option (red laser)?

Yokogawa OTDR

• AQ1000 Entry Level OTDR
• AQ7280 Modular OTDR
• AQ1210 Series OTDR
• AQ7933 & AQ7932 OTDR Emulation Software
• AQ7277B Remote OTDR

Which optical source is used in OTDR?

Power checker (PC) Measures and displays optical power of incoming light for testing network performance.

Light source (LS) Outputs a stable, continuous wave/modulated light for measuring end-to-end attenuation accurately when paired with an optical power sensor.

Visible light source (VLS) Outputs red light for checking the continuity of launch fibers or short fiber trunks. Breaks and bending in fiber can be identified visually

VLS modules:

• OTDR AQ278- OPM (Optical Power Meter) [Select one model] [Select one connector: SCC, FCC, SFC (2.5 mm dia.), LMC (1.25 mm dia.)] (Models with “V” include the VLS function.)
• AQ4780- VLS (Visible Light Source) (Fixed connector with 2.5 mm dia.)
• AQ1000- OTDR VLS optional optical output
  • Wavelength (nm) 650 ±20
  • Optical output level –3 dBm or more (Peak)
  • Modulation mode CW, 2 Hz
  • Laser class †† Class 3R

See the attached image for details.