Title :
SAW timing-extraction filter and investigation of submicron process technology for Gb/s optical communications system
Author :
Asai, K. ; Isobe, I. ; Tada, T. ; Hikita, M.
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
A new SAW filter that consists of 3 λ/8-wide meander-type electrodes and 3 λ/8-wide excitation electrodes on ST-cut quartz was designed for use in Gb/s optical communications systems. New submicron process techniques using the phase shifting method were used to fabricate this filter, which had an insertion loss of less than 14 dB and a Q of about 700, and satisfied all required specifications over a temperature range from 0 to 60°C
Keywords :
UHF filters; digital communication; interdigital transducers; optical communication equipment; optical fibre communication; phase shifting masks; photolithography; surface acoustic wave filters; timing; 0 to 60 C; 14 dB; Gb/s optical communications system; SAW timing-extraction filter; ST-cut quartz; SiO2; excitation electrodes; insertion loss; meander-type electrodes; phase shifting method; submicron process technology; Electrodes; Frequency; Optical design; Optical fiber communication; Optical filters; Optical losses; Optical pulses; Optical receivers; SAW filters; Surface acoustic waves;
Conference_Titel :
Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2940-6
DOI :
10.1109/ULTSYM.1995.495555
