[et_pb_section fb_built=”1″ _builder_version=”4.16″ custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.16″ width=”100%” custom_margin=”0px||||false|false” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.16″ global_colors_info=”{}”][et_pb_image src=”https:\/\/iridian.jp\/wp-content\/uploads\/2019\/08\/Satcom-product-sheet-header-no-text-1024×413.jpg” title_text=”Satcom product sheet-header-no-text” _builder_version=”4.16″ global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ global_colors_info=”{}”]<\/p>\n
The desire for low latency, high capacity, secure, uninterrupted internet connectivity everywhere on earth, at all times has driven explosive growth in the satellite communications (Satcom) market. Iridian designs and manufactures custom wavelength selective windows and transceiver filters to improve the signal to noise in these systems.<\/span><\/p>\n Commercial Satcom networks will consist of constellations of 100\u2019s to 1000\u2019s of satellites in an interconnected low earth orbit (LEO) mesh. Many of these systems rely on optical intersatellite link (OISL) architecture to connect satellites via laser based optical communications. Optical filters provide wavelength selectivity to these systems addressing different functional needs from solar rejection windows to wavelength selective signal clean-up filters and beam splitting\/combining dichroic filters.<\/span><\/p>\n Solar Rejection Windows (SRW)<\/span> allow the transmission of the OISL communication band (typically around 1550nm) between satellites while blocking the background solar radiation, providing improved signal-to-noise while helping minimize solar heating inside the satellite.<\/span><\/p>\n Typical SRW optical filter performance requirements include:<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/iridian.jp\/wp-content\/uploads\/2019\/10\/Chart-Optical-Satcom-Lights-the-Way.png” title_text=”Chart – Optical Satcom Lights the Way” align=”center” admin_label=”chart” _builder_version=”4.16″ width=”75%” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ global_colors_info=”{}”]<\/p>\n Dichroic Beam Splitters\/Combiners<\/strong><\/span> enable the receiver to selectively receive specific wavelength bands of interest.\u00a0<\/span>These may be used as stand-alone clean-up filters or in series to direct different signals to different detectors in the optical train.<\/span><\/p>\n Typical Dichroic filter requirements include:<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/iridian.jp\/wp-content\/uploads\/2020\/05\/SATCOM-Chart-1.png” title_text=”SATCOM Chart 1″ align=”center” admin_label=”CHART” _builder_version=”4.16″ width=”70%” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ global_colors_info=”{}”]<\/p>\n Band-pass \u201cClean-up\u201d Filters<\/strong><\/span> ensure high signal to noise in the transmitted and received signal bands (often two or more wavelength bands carrying signal).<\/span><\/p>\n Typical Band-pass filter requirements include:<\/span><\/p>\n [\/et_pb_text][et_pb_image src=”https:\/\/iridian.jp\/wp-content\/uploads\/2020\/05\/SATCOM-Chart-2.png” title_text=”SATCOM Chart 2″ align=”center” admin_label=”chart 3″ _builder_version=”4.16″ width=”70%” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.16″ global_colors_info=”{}”]<\/p>\n Iridian has produced individual filters and multi-spectral elements that have been tested and qualified for a range of orbits and space environments. Iridian is a registered participant in the Canadian Controlled Goods Program.<\/span><\/p>\n Examples of space environment testing and qualification that our filters have passed include:\u00a0<\/span><\/p>\n\n
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Space Heritage<\/b><\/h3>\n
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