Title :
High-efficiency narrow-band holographic reflective filter for DWDM
Author :
Efimov, O.M. ; Smirnov, V.I. ; Glebov, L.B.
Author_Institution :
Light Process. & Technol. Inc, Orlando, FL, USA
Abstract :
Summary form only given. A multicomponent silicate photosensitive glass was used as a medium for Bragg grating recording. The Bragg grating formation is a two-step process: UV irradiation followed by thermal treatment. Samples were exposed to the interference pattern of a He-Cd laser at 325 nm with corresponding spatial frequency. The narrow band holographic mirrors were recorded for visible and IR regions. The total losses at 1550 nm were in the range of 1%. The high absolute diffraction efficiency of three-dimensional Bragg gratings recorded in PTR glass combined with the potential of narrow band filter fabrication pave the way for the creation of passive optical elements for DWDM technology such as add-drop elements or wave-lockers.
Keywords :
Bragg gratings; holographic gratings; laser materials processing; mirrors; optical filters; optical glass; optical losses; wavelength division multiplexing; 1550 nm; 325 nm; 90 percent; Bragg grating recording; DWDM technology; He-Cd laser interference pattern; IR region; PTR glass; UV irradiation; absolute diffraction efficiency; add-drop element; high-efficiency narrow-band holographic reflective filter; multicomponent silicate photosensitive glass; narrow band filter fabrication; narrow band holographic mirrors; passive optical elements; photothermorefractive glass; reflective Bragg gratings; spatial frequency; spectral selectivity; thermal treatment; total losses; visible region; wave-locker; Bragg gratings; Frequency; Glass; Holography; Interference; Mirrors; Narrowband; Optical filters; Optical losses; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 2001. CLEO '01. Technical Digest. Summaries of papers presented at the Conference on
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
1-55752-662-1
DOI :
10.1109/CLEO.2001.947583
