| 摘要 |
PCT No. PCT/GB91/01699 Sec. 371 Date May 6, 1993 Sec. 102(e) Date May 6, 1993 PCT Filed Oct. 2, 1991 PCT Pub. No. WO92/06394 PCT Pub. Date Apr. 16, 1992.A method of forming a pair of V-grooves in alignment with an array of planar waveguides comprises the steps of simultaneously forming cores for the waveguides and windows for the V-grooves covering the cores with a protective layer and forming the V-grooves through the windows. The method is such that the V-grooves are formed on each side of the array of waveguides. |
