Patent ID: 9645045
Date: 2017-05-09
CPC Classifications: G01M,G01N,G02B

Claim:
1. An apparatus, comprising: a substrate stage configured to retain a waveguide defined by a polable polymer layer on a substrate; a beam scanner configured to scan a focused optical beam along an axis of the waveguide, wherein the focused optical beam is at a fundamental wavelength; an optical detection system configured to detect nonlinear optical radiation from the waveguide at an optical harmonic wavelength responsive to the focused optical beam; and a processing system configured to produce an image of at least a portion of the waveguide based on the scanning of the focused optical beam and the detected optical harmonic radiation and adjust poling conditions based on the detected optical harmonic radiation, wherein the poling conditions include at least one of a polymer temperature or a poling electric field applied to the polymer layer.