{"product_id":"digital-tunable-bandpass-filter-1527-1567-nm","title":"Digital Tunable Bandpass Filter, 1527 - 1567 nm","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe TOF1550 is a digital tunable Gaussian bandpass filter engineered for telecommunication C-band applications, specifically spanning the 1527 - 1567 nm wavelength range. It is designed to support 50 GHz Dense Wavelength Division Multiplexing (DWDM) ITU grid channel spacing, allowing users to isolate specific channels from a broadband input signal.\u003c\/p\u003e\n\u003cp\u003eThis device features a user-friendly touchscreen interface for precise control of the target center wavelength. It provides flexible operational modes, including direct wavelength selection or ITU grid channel selection (channels 14 to 63), with adjustable step sizes for granular tuning. The filter is housed in a compact aluminum enclosure suitable for laboratory or production environments and includes silicone rubber bezels for enhanced grip and surface protection.\u003c\/p\u003e\n\u003cp\u003eFor system integration, the TOF1550 supports remote operation via a USB Type-C port. When connected, the filter is recognized as a serial (COM) port, enabling automated control through standard serial communication protocols. This makes it an effective tool for signal selection, monitoring, and diagnostic applications in optical communication systems.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTunable Gaussian Passband\u003c\/strong\u003e\u003cbr\u003eFeatures a Gaussian filter profile specifically optimized for C-band (1527 - 1567 nm) telecommunication signals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eITU Grid Compatibility\u003c\/strong\u003e\u003cbr\u003eSupports 50 GHz DWDM ITU grid channel selection (channels 14–63), facilitating precise channel isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemote Interface\u003c\/strong\u003e\u003cbr\u003eEquipped with a USB Type-C port for remote operation and automation via serial (COM) port commands.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Insertion Loss\u003c\/strong\u003e\u003cbr\u003eProvides a low insertion loss of \u0026lt;3.5 dB (2.5 dB typical) at 1550 nm, maintaining high signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Isolation\u003c\/strong\u003e\u003cbr\u003eDelivers non-adjacent isolation of ≥27 dB, effectively suppressing unwanted spectral noise.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTouchscreen Control\u003c\/strong\u003e\u003cbr\u003eIntegrated touchscreen interface allows for intuitive, on-device tuning of center wavelength and step size.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eDense Wavelength Division Multiplexing (DWDM)\u003c\/li\u003e\n\u003cli\u003eSpectral Response Characterization\u003c\/li\u003e\n\u003cli\u003eOut-of-Band ASE Suppression\u003c\/li\u003e\n\u003cli\u003eReceiver Testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"border-collapse: collapse; width: 100%;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px; background: #f5f5f5;\"\u003eSpecification\u003c\/th\u003e\n\u003cth style=\"text-align: left; border: 1px solid #ddd; padding: 8px; background: #f5f5f5;\"\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eThorlabs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eModel\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eTOF1550\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eWavelength Tuning Range\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e1527 - 1567 nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePassband Width @ -1 dB\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≥0.12 nm (15.0 GHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePassband Width @ -3 dB\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≥0.21 nm (26.2 GHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePassband Width @ -20 dB\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≥0.77 nm (96.1 GHz)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eInsertion Loss\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u0026lt;3.5 dB (2.5 dB typical)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003ePolarization Dependent Loss\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e\u0026lt;0.3 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eNon-Adjacent Isolation\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e≥27 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eMaximum Input Power\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003e300 mW (24.78 dBm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eConnector Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eFC\/APC Narrow Key (2.0 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eCommunication Port\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #ddd; padding: 8px;\"\u003eUSB Type-C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eCan the TOF1550 be operated remotely?\u003c\/strong\u003e\u003cbr\u003eYes, the device features a USB Type-C port that allows for remote operation via a computer using serial (COM) port commands.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat type of fiber connectors are used?\u003c\/strong\u003e\u003cbr\u003eThe device utilizes FC\/APC narrow key (2.0 mm) fiber connectors for input and output.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow can the device be mounted?\u003c\/strong\u003e\u003cbr\u003eThe filter uses Thorlabs' EEET6011 compact aluminum housing, which is compatible with mounting clamps such as the ECM125 and ECM325.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the maximum input power for the TOF1550?\u003c\/strong\u003e\u003cbr\u003eThe maximum input power is 300 mW (24.78 dBm).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the filter suitable for DWDM applications?\u003c\/strong\u003e\u003cbr\u003eYes, the TOF1550 is specifically designed for 50 GHz DWDM ITU grid channel spacing applications.\u003c\/p\u003e","brand":"Fosco Connect","offers":[{"title":"Default Title","offer_id":43099157004386,"sku":"TOF1550","price":8560.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1026\/4509\/files\/tof1550_ecm325_a1-780.jpg?v=1783396022","url":"https:\/\/www.fiberoptics4sale.com\/products\/digital-tunable-bandpass-filter-1527-1567-nm","provider":"Fosco Connect","version":"1.0","type":"link"}