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Exchangeable Tunable Filters
Applications Include Test, R&D, and Communications 1-Cavity,2-Cavity, and 3-Cavity Designs Depending on your transmission type Very Stable Over Time and Temperature Advanced YAG welding techniques lead to very good alignment characteristics over time Both Fixed and Adjustable are Available Adjustability range >20 nm Low Insertion Loss Depending on the specific filter, losses are from 0.7 dB to 2 dB Good Return Loss >45 dB Specifications for Exchangeable Tunable Filters Exchangeable Tunable Filter Platforms Model Description TFM-SMF-FC/APC-15 1500 Collimated Filter Holder with FC/APC and Single Mode Fiber TFM-PMF-FC/APC-15 1500 Collimated Filter Holder with FC/APC and PM Fiber (Panda) WTFM-SMF-FC/APC-15 1500 Collimated Dual Filter Holder with FC/APC and SM Fiber WTFM-PMF-FC/APC-15 1500 Collimated Dual Filter Holder with FC/APC and PM Fiber (Panda) Standard Exchangeable Filters Model Cavities Range Resolution Setability Insertion Loss Return Loss FWHM FC-PB-1-1-1560 1 >20 nm ~±20 pm ~±5 pm <1.9 dB >45 dB 1 nm FC-PB-1-3-1560 1 >20 nm ~±20 pm ~±5 pm <1.4 dB >45 dB 3 nm FC-PB-2-5-1560 2 >20 nm ~±20 pm ~±5 pm <1.4 dB >45 dB 5 nm Non-Standard Exchangeable Filters Model Cavities Range Resolution Setability Insertion Loss Return Loss FWHM FC-PB-1-c-cccc 1 >20 nm ~±20 pm ~±5 pm Filter Dependent >45 dB User Specified FC-PB-2-c-cccc 2 >20 nm ~±20 pm ~±5 pm Filter Dependent >45 dB User Specified FC-PB-3-c-cccc 3 >20 nm ~±20 pm ~±5 pm Filter Dependent >45 dB User Specified Other Exchangeable Filters Model Description FC-1500-S 1500 nm Short-Pass Filter FC-1500-L 1500 nm Long-Pass Filter Ordering Information for Exchangeable Tunable Filters Note that two parts are necessary to make a useable exchangeable filter.  Specifications are needed for both the collimator bed (TFM or WTFM) and the filter cartridge. Collimator Bed (TFM or WTFM) Ordering Protocol Use the following definitions to specify the TFM or WTFM (collimator bed). TFM-ppp-cc/ccc-bb/a (Example: TFM-SMF-FC/APC-15) TFM =    Single filter fiber collimator bed WTFM =    Dual filter fiber collimator bed ppp =    Fiber type     SMF =  Single mode fiber 9/125 for 1310 nm   PMF =  Polarization maintaining fiber 9.5/125 for 1310/1550 nm   MMM =  Multimode fiber 50/125 cc/ccc =    Connectors     FC/SPC =  FC with SPC (super physical contact) fiber face   FC/APC =  FC with APC (angled physical contact) fiber face   SC/SPC =  SC with SPC (super physical contact) fiber face   SC/APC =  SC with APC (angled physical contact) fiber face bb =    Wavelength band     15 =  1550 nm   13 =  1320 nm Filter Cartridge Ordering Protocol Use the following definitions to specify the filter cartridge (FC). FC-ff-a-b-wwww (Example: FC-PB-1-3-1560) FC =    Exchangeable filter cartridge designator ff =    Filter type     PB =  Band pass   SP =  Short pass   LP =  Long pass a =    Number of cavities b =    Fill width half max (fwhm) bandwidth wwww =    Specify longest wavelength   © 2003-2006 dBm Optics, Incorporated. All Rights Reserved.