Thin Film Filters
30+ Years of Thin Film Coating Expertise
DiCon has a long history of developing thin film coating technology, starting with making our own AR (anti-reflection) coating on fiber optic collimators over 30 years ago. As the optical communication industry rapidly expanded in the 90’s, DiCon invested heavily in advanced thin film coating equipment, pioneering in coating fabrication with ion-beam sputtering chambers for extremely difficult narrow-band DWDM filters, as well as developing an intelligent and proprietary optical monitoring system for hard-to-achieve spectrums.
World Class Coating Facility in California
DiCon has become a perennial world leader in thin film optical coating technology through continuous investment of our U.S. based fabrication facility and refining our manufacturing processes. Our San Francisco Bay Area headquarters is the center of coating technology development and has numerous Ion-Beam Sputtering and E-beam Chambers. We control the full range thin film coating processes from coating fabrication and wafer inspection, all the way through annealing and dicing.
Below is a list of spectrums we produce frequently:
Wide & Narrow Bandpass
Longpass & Shortpass
Multi-band Wavelength Division
High Reflectivity & Beam Splitter
Gain Flattening
Expert in Component Design
With experience accumulated since the company founding in 1986, DiCon’s engineers work directly with customers to package components to meet specific project needs. We make high performance thin film filters that are low loss, temperature stable, robust, and durable. We can also make products that can meet differ Telecommunication, Military, or Aerospace qualification standards.
Some of the standard components we produce are listed here:
Filters
Filter, Wideband Filter, Edgepass Filter, Multi-band WDM, Wideband WDM, 100 GHz Ultra-Compact WDM, 100 GHz WDM, CoarseMultimode Thin Film Couplers
Multimode 1X2 Thin Film Coupler Multimode 1X2 Thin Film Coupler Box Multimode 1X4 Thin Film Coupler Box