LS-3 Series Laser Source

LS-3 Series Laser Source with encrypted protocol and high stability for precision multi-wavelength fiber testing.

Need a custom spec or OEM branding on this product? Talk to our engineering team.

Factory Tested

Every batch, before shipment

ISO-9001

Manufacturing

OEM Available

Custom specs and branding

Global Delivery

Americas, Europe and Africa

The LS-3 Series Laser Source is a high-precision optical testing device designed for accurate fiber continuity and loss measurements. Engineered for optimal stability and ease of use, this tool is ideal for technicians and network engineers performing installations and diagnostics across fiber optic systems.

A key feature of the LS-3 series is its compatibility with wavelength-identification digital encrypted protocols, which enables seamless communication with LP-3 series optical power meters. This allows automatic wavelength recognition, significantly reducing manual setup time and increasing testing efficiency.

The unit provides consistent output over long periods, supporting up to 50 hours of continuous operation powered by 3 AA batteries or an AC/DC adapter. It supports multiple wavelength models including 850/1300 nm for multi-mode, and 1310/1490/1550 nm for single-mode fiber networks, making it a versatile choice for FTTH, LAN, and telecom field applications.

With a clear LCD display, backlight for low-light environments, and optional accessories including SC, ST, and LC adapters, the LS-3 Series delivers excellent functionality, portability, and precision for professional-grade optical testing.

  • Encrypted digital protocol for wavelength identification

  • Compatible with LP-3 Series Power Meter

  • Auto power-off and battery indicator

  • High output stability (±0.05 dB short-term)

  • LCD display with backlight

  • Up to 50 hours of battery operation

  • Multiple output wavelengths for multimode and single-mode testing

  • Available with FC/PC, SC, ST, and LC adapters

Specification Details
Model LS-3M / LS-3S / LS-3T
Output Wavelength 850/1300 nm, 1310/1550 nm, 1310/1490/1550 nm
Laser Type LD (Laser Diode)
Output Stability ±0.05 dB (15 min), ±0.2~0.8 dB (5 hrs)
Central Wavelength ±20 nm
Spectral Width 3 nm
Modulation Frequency 270 Hz, 1 kHz, 2 kHz
Output Power ≥-5 dBm @1310/1490/1550 nm, ≥-10 dBm @850/1300 nm
Temperature Range Operating: -10~50°C, Storage: -20~70°C
Power Supply 3 × AA batteries, AC/DC adapter
Dimensions 170 × 82 × 35 mm
Standard Accessories FC/PC Adapter, Carrying Bag, Manual
Optional Accessories SC Adapter, ST Adapter, FC to LC Adapter, AC/DC Adapter
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LS-3 Series Laser Source with encrypted protocol and high stability for precision multi-wavelength fiber testing.

Need help specifying this product for your network?

Our engineering team can confirm compatibility, custom specs and OEM branding options.

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