Laser Protection Methods

A lidar system comprising:

• a plurality of light emitter devices;
• a plurality of laser driver circuits that are electrically coupled to respective light emitter devices of the plurality of light emitter devices, wherein each laser driver circuit of the plurality of laser driver circuits comprises:
• at least one switch;
• and
• an analog logic gate configured to accept a plurality of inputs, wherein the laser driver circuit is configured to:
• cause a drive current to flow through the at least one switch when the plurality of inputs correspond to a predetermined trigger combination, wherein the drive current causes the at least one light emitter device to emit at least one light pulse.

A method comprising:

• receiving, by an analog logic block, a plurality of indicator inputs;
• determining, based the plurality of indicator inputs, an output signal;
• receiving, by a logical gate, at least the output signal and a laser trigger input pulse;
• determining, based on the output signal and the laser trigger input pulse, a predetermined trigger combination;
• in response to determining the predetermined trigger combination, causing a drive current to flow through at least one switch of a light emitter device;
• and
• causing the light emitter device to emit at least one light pulse.