FBT COUPLER Polarization Maintaining Coupler Parameter Wavelength ≤ 1280nm Center Wavelength Wavelength ≥ 1280nm Specified by customer Operating Wavelength Range Center wavelength ± 10 nm Coupling Ratio 1% (± 0.3%) to 50% (± 5%) Excess Insertion Loss (slow axis input, including TDL) ≤ 0.7 dB ≤ 0.5 dB Polarization Extinction Ratio ≥ 15 dB ≥ 20 dB Return Loss ≥ 55 dB Directivity ≥ 55 dB Fiber Type PM Panda Fiber Operating Temperature 0° C to + 70° C Storage Temperature - 40° C ~ + 85° C Package Dimensions Light Duty ( B ) 3.0mm (Φ) x 60.0mm (L) 3.0mm (Φ) x 55 mm (L) Medium Duty ( L ) 3.0mm (Φ) x 65.0mm (L) 3.0mm (Φ) x 60.0mm (L) Heavy Duty ( K, R ) 100.0mm x 12.0mm x 8.0mm *There will be 1.0 dB less for extinction ratio if connector is added. Note1: All values specified are without connectors. P M C- - Align Axis Port Number S: Slow 12: 1 x 2 F: Fast 22: 2 x 2 13: 1 x 3 14: 1 x 4 www.lighteltech.com 2210 Lind Ave SW, Suite 100 Renton, WA 98057 USA (425) 277-8000 ph. (425) 277-5280 Fax - Coupling Ratio xy% : xy% EVEN : even split Center Wavelength Examples: 0980 = 980 nm 1480 = 1480 nm Fiber Length 1: 1 meter 2: 2 meter S: Special 0: 0.5 meter All rights Reserved 2009 - - Pigtail Style (=Package style) B: bare fiber L: 900 µm loose tube K: 2mm cable R: 3mm cable Connector 0: None 1: FC/PC 2: FC/APC 3: SC/ PC 4: SC/APC 5: FC/SPC 6: SC/SPC 7: LC/UPC 8: LC/SPC 9: Special A: FC/UPC B: SC/UPC C: ST