# FACT SHEET

# UNITED STATES AIR FORCE

Air Force Research Laboratory
Office of Public Affairs
3550 Aberdeen Avenue S.E., Kirtland AFB NM 87117-5776
(505) 846-1911; Fax (505) 846-0423
INTERNET: http://de.afrl.af.mil/Factsheets/

## POCKET LASER COMMUNICATOR

> The Pocket Laser Communicator, developed by the Laser Division of the Air Force Research Laboratory’s Directed Energy Directorate, is a lightweight, compact semiconductor laser device capable of transmitting and receiving secure voice communications without radio frequency transmission. For best results, the communication range is within .6 miles, but can be as high as 1.2 miles by using a narrow beam. The system consists of a transmitter, receiver, and headset.

> This communicator system has a security advantage in that it transmits voices over a laser beam which, unlike a radio frequency transmission, can not be picked up by unfriendly forces (enemies) using a scanner. Conversations on regular radios and walkie-talkies which use radio frequencies are susceptible to interception.

> The unique Laser Division transmitter contains a diode laser operating at near-infrared wavelengths. The laser wavelength works well with night-vision equipment, resulting in improved night operations. Different wavelengths are being investigated to enhance operation and increase eye safety. The transmitter is about the size of a miniature flashlight and can also function as an infrared flashlight. A lens is used to vary the beam size from a pin point to a flood light.

> When used with a wide beam in an enclosed environment, the receiver can pick up light scattered off walls and ceilings, and the system can be used as an intercom. The receiver contains the electronics, battery, and infrared detector. It is powered by a 9-volt battery which allows four hours of operation and can be recharged. The receiver weighs about 8 ounces and is about the size of a cassette tape. It uses a magnifying lens to focus the energy on the detector and an optical filter to reduce the amount of noise. Two cable jacks, one for the transmitter and one for the headset, are on the receiver.

> Two different headsets are available. One is a lightweight, adjustable model that covers one ear and has a small adjustable microphone. The second is an ear-mike, a combined earphone and microphone that is inserted into the ear and operates on the principle of bone conduction.

> The Pocket Laser Communicator is a multi-functional (communicator, infrared flashlight, and pointer) device that is unprecedented in low weight and small size. It provides short-range communication capabilities for various military and law enforcement personnel.

> -AFRL-

> Air Force Research Laboratory
> (Current as of July 2002)