bids are invited for variable optical attenuator - 1310/1550nm, smf28e fiber,both ends: fc/apc length 1m , polarization beam combiner/splitter - 1550nm, both ends: fc/apc, 900 um loose tube jacket, pm panda slow axis aligned to port1, 1m fiber length, 22db er , isolator - 1550nm(300mw), single stage, 900um loose tube jacket, both ends: fc/apc, length1m , mating sleeves - fc-sc mating sleeve, metal frame , circulator - 3 port, 1550nm, 900um loose tube jacket, all ends: fc/apc,length 1m , 99:1 coupler - port 2x2,1550 nm , 4 port, 900um loose tube jacket, all ends: fc/apc, length 1 m , 80:20 coupler - port 2x2,1550 nm , 4 port, 900um loose tube jacket, all ends: fc/apc, length 1 m , 90:10 coupler - port 2x2,1550 nm , 4 port, 900um loose tube jacket, all ends: fc/apc, length 1 m , 70:30 coupler - port 2x2,1550 nm , 4 port, 900um loose tube jacket, all ends: fc/apc, length 1 m , pm patch cord 980 - 980nm, 900um loose tube jacket, both ends: fc/apc, length1 m , zz1: axis alignment end1: e1(sa)slow axis , 800 nm patch cord - 800nm, fibercore sm800(5.6/125) fiber, 900um loose tube jacket , both ends: fc/apc, length 1m , patch cords - 1550nm, fc/apc- fc/apc, 900 um tight buffered , length 1m , 1 patch cords - 1550nm, fc/apc-fc/upc, 900um tight buffered jacket, length 1m , wdm - 980/1550 nm, wdm 2x2, 900um loose tube jacket, all ends: fc/apc, length 1m , sm patch cord - 1550nm, 900um tight buffered jacket, smf28e fiber, 10cm +/-3mm length, both ends fc/apc connectors total quantity : 1