I find this an appropriate, consumer-oriented summary right at the start of the article - you cannot expect the BBC News to dive too deeply into the matter and especially not during the first 2 paragraphs.
Also, consider they did add that touch you were missing at the end:
"Think of all the tremendous progress in silicon photonics," he said. "Nobody could have imagined 10 years ago that nowadays it would be so common to integrate relatively complicated optical circuits on to a silicon chip."
And since the scientist they interviewed was German, you should also factor in certain translation issues like a German scientist explaining Fourier transformation and splitting of light beams to a British news reporter.
Also, consider they did add that touch you were missing at the end:
"Think of all the tremendous progress in silicon photonics," he said. "Nobody could have imagined 10 years ago that nowadays it would be so common to integrate relatively complicated optical circuits on to a silicon chip."
And since the scientist they interviewed was German, you should also factor in certain translation issues like a German scientist explaining Fourier transformation and splitting of light beams to a British news reporter.