Patent Number: 6,298,178

Title: Stray light absorption

Abstract: An integrated optical circuit formed on an optically conductive substrate having light absorbing means comprising one or more doped areas (1) of the substrate where the doping concentration is greater than that of areas of the substrate forming the optical circuit (2) to absorb stray light in the substrate which is not guided by components of the optical circuit.

Inventors: Day; Ian (Old Headington, GB), McKenzie; James Stuart (Uxbridge, GB)

Assignee: Bookham Technology PLC

International Classification: G02B 6/12 (20060101); G02B 6/125 (20060101); G02B 6/42 (20060101); G02B 006/12 ()

Expiration Date: 10/02/2018