Patent ID: 9612432
Date: 2017-04-04
CPC Classifications: G01B,G01J,G02B

Claim:
1. A method of aligning a first mirror and a second mirror of a micro-electro-mechanical system (MEMS) photonic switch, the method comprising: receiving, by a first collimator of a first plurality of collimators, a first optical control signal having a control wavelength; receiving, by the first collimator, a first optical traffic signal having a traffic wavelength; reflecting, by the first mirror on a first mirror array, the first optical control signal to produce a first optical control beam; reflecting, by the first mirror, the first optical traffic signal to produce a first optical traffic beam; and detecting, by a first photodiode having a first location on a second mirror array, a first intensity of a first control beam spot of the first optical control beam to produce a first detected optical signal, wherein the second mirror array comprises the second mirror, and wherein a first diameter of the first control beam spot is larger than a second diameter of a first traffic beam spot of the first optical traffic beam at the second mirror array.