Product Overview

The JW3109 is a professional handheld stable light source, specially designed for fiber optic link testing, loss measurement, installation and maintenance in telecom networks, FTTH/FTTx, CATV projects, comprehensive wiring systems, data centers and laboratory scenarios. It adopts advanced FP-LD and LED light-emitting devices, featuring high output power stability and wavelength stability, which can provide 1 to 4 optional output wavelengths according to user needs. The device supports both single-mode and multi-mode fibers, covering common communication wavelengths including 650nm visible red light, 850/1300nm for multi-mode fibers and 1310/1550nm for single-mode fibers. It supports CW (continuous wave) and multi-frequency modulated output, with 2Hz modulation for 650nm wavelength and 270Hz, 1kHz, 2kHz modulation for other wavelengths, which can be easily matched with optical power meters for fiber loss testing. Equipped with a large backlight LCD display, it can intuitively show working wavelength, modulation status and power information, supporting night operation for convenient on-site use. With an ergonomic handheld design, it is powered by 3 AA alkaline batteries, featuring 45 hours of continuous working time and an optional 10-minute auto-off function to save power. The JW3109 is compact, lightweight, easy to operate with one key to switch wavelengths, and has strong environmental adaptability, making it an essential professional tool for telecom operators, fiber installers, network maintenance teams and laboratory technicians to ensure the accuracy and stability of fiber optic testing.

Detailed Technical Specifications

Key Features & Advantages

• Multi-Wavelength Optional: Supports 1-4 optional wavelengths (650/850/1300/1310/1550nm), compatible with single-mode and multi-mode fibers, meeting different testing requirements of various fiber network scenarios.

• High Stability Performance: Adopts high-quality FP-LD and LED light-emitting devices, output power stability up to ±0.05dB/15mins and ±0.1dB/8hours, ensuring accurate and reliable testing results.

• Dual Output Modes: Supports CW (continuous wave) and multi-frequency modulated output, matching different optical power meters for fiber loss testing, improving testing efficiency and versatility.

• Intuitive Operation & Night Use: Large backlight LCD display, clearly showing wavelength, modulation status and power information; backlight function supports night operation, suitable for various on-site environments.

• One-Key Wavelength Switch: Simple operation design, one key to switch between different wavelengths, easy to use for both novices and professional technicians, saving operation time.

• Long Battery Life & Power Saving: Powered by 3×AA alkaline batteries, continuous working time up to 45 hours; optional 10-minute auto-off function, effectively saving battery power and avoiding sudden power failure during testing.

• Lightweight & Portable: Ergonomic handheld design, compact size (175×82×33mm) and light weight (≈295g), easy to carry and operate with one hand, suitable for on-site mobile testing.

• Durable & Wide Adaptability: High-strength engineering plastic body, anti-drop and wear-resistant; wide temperature and humidity adaptation (-10°C to +60°C operating temperature), suitable for outdoor, computer room, laboratory and other complex environments.

Application Scenarios

The JW3109 Stable Light Source is widely applied in various fiber optic testing scenarios, including telecom engineering and maintenance, CATV engineering and maintenance, comprehensive wiring systems, data centers, enterprise networks, fiber engineering projects, laboratories and teaching. It is mainly used as a standard light source for fiber loss measurement, cooperating with optical power meters to test fiber link attenuation, verify fiber connectivity and judge fiber link quality. It is an essential professional tool for telecom operators, fiber installers, network maintenance teams, laboratory technicians and teachers to ensure the smooth progress of fiber network installation, maintenance and teaching experiments. It is suitable for on-site fiber loss testing, fiber link acceptance, daily maintenance of fiber networks and laboratory fiber testing.