Title :
Reduction in polarisation-dependent loss and birefringence of arrayed-waveguide grating by adaptable thermal quenching
Author :
Park, Mahn Yong ; Gwak, Seung Chan ; Choi, Ki Secon ; Oh, Jin Kyung ; Lee, Hyung Jong ; Song, G. Hugh
Author_Institution :
Dept. of Inf. & Commun., Kwangiu Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
As a post-process technique for eliminating the polarisation-dependent loss (PDL) and birefringence (PDλ) of a conventionally-fabricated arrayed-waveguide grating, a method is proposed for adaptable thermal quenching in a few sessions of quenching below the glass transition temperature of the overclad silica layer. The PDL and PDλ can be reduced significantly down to 0.23 dB and below 0.01 nm, respectively, in at most three quenching sessions.
Keywords :
arrayed waveguide gratings; birefringence; integrated optics; light polarisation; optical fabrication; optical losses; quenching (thermal); 0.23 dB; SiO2; adaptable thermal quenching; arrayed-waveguide grating; birefringence reduction; glass transition temperature; overclad silica layer; polarisation-dependent loss reduction; post-process technique;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030117
