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GAO Fiber Optics has released a fibre-optic visual light source suitable for measuring the optical loss in fibre in the testing and maintenance of telecom, CATV and other fibre-optic applications.

Used together with the company’s 5304 fibre-optical power meter, the new device, model 5204, provides a precise testing solution for optical networks.

This fibre-optic visual light source, which is part of GAO’s Light Source range of products, provides one to six wavelengths of highly stable output, including 650nm visible red light, 1,310/1,550nm wavelengths for single-mode fibre and 850/1,300nm wavelengths for multi-mode fibre, as well as other optional wavelengths.

It offers typical output power of 0dBm at 650nm, -7dBm at 1,310nm/1,550nm and -20dBm for light-emitting diodes (LEDs).

Its modulation frequencies are CW, 2Hz at 650nm and CW, 270Hz, 1kHz and 2kHz at other wavelengths.

It features one-touch switch operation, a backlight LCD display for night operation and low battery power indication.

It has an auto-off function after 10 minutes of idle time.

The fibre-optic visual light source is powered by alkaline batteries that provide 45 hours of continuous operation and also has an AC power supply.

GAO Fiberoptics

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