Optical beam identification using optical demodulation

A device for identifying an optical beam, comprising:

• a sensor coupled to the device and configured to:
• receive a first optical beam comprising a first frequency;
• and
• receive a second optical beam comprising a second frequency;
• a shutter coupled to the sensor and configured to operate at a third frequency, wherein operating the shutter while receiving the first optical beam comprising the first frequency results in a first signal with a fourth frequency and operating the shutter while receiving the second optical beam comprising the second frequency results in a second signal with a fifth frequency;
• and
• processing logic configured to:
• detect the first signal with the fourth frequency;
• and
• identify the first optical beam using a known association between the first optical beam and the fourth frequency by the device.

An apparatus for identifying an optical beam, comprising:

• means for receiving a first optical beam comprising a first frequency;
• means for receiving a second optical beam comprising a second frequency;
• means for operating a shutter at a third frequency, wherein operating the shutter while receiving the first optical beam comprising the first frequency results in a first signal with a fourth frequency and operating the shutter while receiving the second optical beam comprising the second frequency results in a second signal with a fifth frequency;
• means for detecting the first signal with the fourth frequency;
• and
• means for identifying the first optical beam using a known association between the first optical beam and the fourth frequency.

A non-transitory computer-readable storage medium including machine-readable instructions stored thereon for:

• receiving a first optical beam comprising a first frequency;
• receiving a second optical beam comprising a second frequency;
• operating a shutter at a third frequency, wherein operating the shutter while receiving the first optical beam comprising the first frequency results in a first signal with a fourth frequency and operating the shutter while receiving the second optical beam comprising the second frequency results in a second signal with a fifth frequency;
• detecting the first signal with the fourth frequency;
• and
• identifying the first optical beam using a known association between the first optical beam and the fourth frequency.